Dr. Steven Machtinger

Allergy and Immunology
San Mateo, CA
46 years experience male

Locations

Office

Insurances accepted

Aetna Life Insurance Company

Blue Cross of California

Blue Shield of California

Cigna

Health Net Of California

Pacificare Life & Health Insurance Company

About

Bio

Steven Machtinger, MD, FAAAI, FACAI is board-certified in pediatrics and in allergy-immunology. Born in Brooklyn, New York he attended M.I.T. completing his bachelor's degree at Princeton. He received his M.D. degree at the University of Pittsburgh School of Medicine. During internship at the University of California, Irvine he became a devoted Left Coaster vowing never to live far from the Pacific Ocean. After two years as a general physician with the Indian Health Service in Warm Springs, Oregon he returned to academia completing pediatric residency and then allergy-immunology-pulmonary fellowship at Stanford. The Stanford program had a strong emphasis on pediatric lung disease. Dr. Machtinger's research focused on the immunology of breastfeeding. He is a fellow of the American Academy of Allergy, Asthma & Immunology. Since 1983 Dr. Machtinger has been in private practice of pediatric and adult allergy, asthma & immunology in San Mateo County just south of San Francisco. He is a former president of the Allergy Association of Northern California and is currently president of the Allergy, Asthma & Immunology Foundation of Northern California. He is an adjunct clinical associate professor of pediatrics at Packard Childrens Hospital at Stanford where he proctors allergy fellows. Married since 1976 he & his wife Karen have a daughter, a son and 2 granddaughters (so far). His recreational activities include playing guitar, singing, bicycle riding, and hiking.

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Allergy and Immunology

Doctor Q&A

921 Answers
703 Agrees
The number of answers this doctor has agreed with.
A 36-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Determine cause: Coughing is a symptom of a problem in your nose, throat, lungs, esophagus and rarely your heart. It can be the result of infection, irritation, allerg... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 25-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Same symptoms...: Different day. Asthma occurs at any age, emphysema is rare under age 40. Symptoms - coughing, wheezing, shortness of breath are the same. Bronchodilat... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Probably not: Acne is a hormonal conditon not an allergic one.
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Different: Testosterone is very different from the anti-inflammatory corticosteroids used to treat asthma, allergic rhinitis & eczema. Testosterone causes mascul... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 41-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Yes, but: There is a strong association between depression and asthma. It's not clear which comes first but once present each exacerbates the other. For best re... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Step back a moment: Dr. Bezack is right: get specialty care. Fortunately both pulmonologists & allergists are trained to evaluate & treat patients with severe asthma. All... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Radiation-free test: Elisa is a test that detects a foreign substance (antigen) or an antibody in blood. Elisa uses an enzyme bound to a 2nd antibody . In the final step t... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 35-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Real estate agent: Find one. Buy new house. Leave pet behind. There are no other "quick procedures". Moving pet out is your best solution in long run. Keeping pet off fu... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Avoid pain patches: Medication patches applied to the skin delivering drugs like local anesthetics often contain latex. If you have a history of anaphylaxis to latex thes... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 21-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Depends: Food intolerance is a term that covers all adverse reactions to foods including food allergy, food poisoning, inability to digest a food, and even dru... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 21-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
No: Actually, not yet. Two approaches - oral desensitization with initially small and gradually increasing doses of specific foods and a combination of me... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 35-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Maybe: In a 2007 turkish study of patients with chronic hives compared to subjects without hives staphylococcus was cultured more frequently from the noses o... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Intoxication: Alcohol causes nasal congestion so you may find that drinking renders Allegra d less effective for symptoms of allergic rhinitis. Because the antihist... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Avoid these: Older antihistamines like Benadryl (diphenhydramine) interact with many drugs. Don't mix it with alcohol, sleeping pills, sedatives, antidepressants, ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 26-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
ER in a can: I agree with drs. Murphy & rhein. In an episode of life-threatening anaphylaxis Epinephrine buys you the time to call 911 & begin to receive comprehen... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
2-4 weeks: Contact dermatitis won't clear up until the allergic trigger is removed. For example, if the cause if nickel allergy you may have to change jewelry an... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Get rid of pet: The only way to get rid of pet dander is to move your pet outdoors...& never let them back inside even in inclement weather. I know this sounds cruel.... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 38-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Lucky: From an evolutionary point-of-view cows and goats are closely related. So the proteins in their milks are very similar and share many common allergens... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Few drawbacks: Inhaled corticosteroids (ic) are an amazing gift for persistent asthma patients reducing asthma episodes, hospitalization & deaths & improving lung fu... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 38-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Triggers allergies: An allergen is any substance, usually a protein but occasionally a carbohydrate, drug or metal, that upon entering the body is perceived by the immune... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 24-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Lactose-free milk: Many dairies now make lactose-free milk. A popular brand is lactaid. Lactose-free milk has lactose that has been predigested to simpler, easily absorb... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Sometimes: Singulair (montelukast) is a controller medication for asthma whose beneficial effects don't last for more than a few days. So take it when you need i... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 34-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
No: Of the 5 types of antibodies, ige is the one involved in allergy triggering allergic rhinitis, asthma & food allergies. Cat allergy occurs when your i... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Goiter & cancer: A thyroid scan evaluates the size and consistency of the thyroid gland. The scan detects how some areas of the thyroid are working either more or less... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Be careful: Most mds choose to use pharmaceutical drugs knowing these agents have been tested & their side-effects, interactions and benefits recorded. They also ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 42-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Yes.: All bacterial skin infections should be considered contagious.
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Yes.: There are numerous studies & case reports in the medical literature of deaths due to either accidental or intentional overdoses of Diphenhydramine (be... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 38-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Yes.: Delayed onset of anaphylaxis to beef has been described. Its referred to as alpha-gal allergy, occurs about 4 hours after a meal, and curiously develo... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Definition: Idiopathic thrombocytopenia purpura is doctor talk for bruising due to low platelets of unknown cause. Itp can become a very serious disease if untrea... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 37-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Cold air: Exercise leads to mouth breathing because when you exercise you can't get enough air through your nose. The nose warms and moistens air; the mouth not... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Stuck it in my thumb: The only adverse effect i've seen to Epipen (epinephrine) is when the directions are not followed & the device is held backwards. The needle can pass ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
More Neosynephrine (phenylephrine): Neosynephrine (phenylephrine) (oxymetazoline topical), a nasal decongestant, is effective but highly addictive. When it wears off the nasal tissue reb... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 34-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Yes.: 95% of all food allergies are due to a few foods - milk & dairy, egg, wheat (barley, oat), soy, corn, seafood, peanuts, seeds & tree nuts. You can be ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 24-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Genes & environment: Noses run in families. Allergy is strongly linked to inheritance. Cigarette smoking, especially during pregnancy, dramatically increases the risk of a... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Depends: If asthma is under control just take your steroid inhaler. You shouldn't need your bronchodilator (rescue inhaler) on a routine basis. On the other ha... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 41-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
EpiPen (epinephrine) above 54#: Although the pdr states that Epipen (epinephrine) junior should be given to children >60 pounds, many allergists choose a lower minimal weight. A comm... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 21-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
You proably want to: Inhalers work much faster than medications that you swallow. The doses are a lot lower because they go directly to the lungs. That makes them safer. I... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Blood in stool: Other forms of immunologic reaction to milk are cow's milk induced proctocolitis & enterocolitis (fpies). These typically begin in the newborn period ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
No: They are very similar drugs. At this time neither one is available in the US.
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Probably nothing: There are no reports of human poisoning from ingestion of triclosan. Triclosan is reportedly harmful to algae & causes reproductive & developmental ab... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 52-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
No: There is a strong link between eczema appearing in infancy and asthma appearing in early childhood. If you are an adolescent or an adult who has eczem... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Vigilance: Enough to worry about. If you didn't need a tnf-a antagonist you wouldn't be taking it. If this monoclonal antibody is not helping your crohn's diseas... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
You can die.: Anaphylaxis is a severe allergic reaction affecting many organs at once. Most serious is swelling shutting off movement of air through the windpipe & ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Why not an allergist: An allergist can answer several questions. Does your child have allergic asthma or wheezing triggered by infections? Are there allergen or respiratory... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Different in kids: Stridor is caused by obstruction of the windpipe at or just below the vocal cords. In children typical causes are croup, larygospasm as in anaphylaxis... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Maxair (pirbuterol): Maxair (pirbuterol) is the only remaining cfc inhaler on the market - but it won't be around for long. There is always nebulized albuterol or levalbut... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 18-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Asthma uncontrolled: 2 basic meds for asthma: reliever drugs & controller drugs. Sounds like you are overly dependent on relievers (albuterol or xopenex). When you take th... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 18-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Behcet's disease: Recurrent canker sores have several causes but behcet's syndrome should be ruled out - especially if your heritage is central or east asian. Behcet's ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 26-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
The whole lip?: If only part of the lip is swollen and there is a canker sore on that part of the lip, then dr. Mulnick is correct. If the entire lip is swollen then ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 46 years experience
Traces of peanuts: Watch for labels that say "contains traces of peanut", "may contain traces of peanut", "made on shared equipment with peanut" & "made in a plant where... Read More
Created for people with ongoing healthcare needs but benefits everyone.

Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

12
Recommendations
1.8K
Thank you notes
Dec 1, 2012
Dr. Machtinger is a knowledgeable, well-trained allergist with exceptional communication skills. I would not hesitate to refer to him patients I had seen who are moving to San Mateo or its environs.
Nov 11, 2012
Dr. Machtinger is an outstanding allergist-immunologist. It's great "seeing" him on Health Tap!
Apr 7, 2013
Gives very timely and knowledgeable answers to patient questions!
HealthTap member
Thank you. WHen my son was five he saw a pulmonologist. A test was perform (sweat). It turn out fine. Drs agreed he had asthama at the time. Now pediatrician says he does not have it. My son can not ...Read More
HealthTap member
Thanks Dr. Machtinger. I'll ask his pediatrician if he needs to change his treatment plan. He's already taking flovent inhaler 2x day and albuterol inhaler every 4hrs. When it gets bad he'll use ne...Read More
HealthTap member
Thanks, Dr. Machtinger! I'm pretty sure I'm not in the category of asthmatics or those with immune problems, but thank you for posting the answer just in case it does become relevant for someone. It...Read More

Education & Training

Medical/Graduate school

University of Pittsburgh School of Medicine, PA
Graduated 1977MD

Awards

Top Doctor, Third Place, San Mateo County, CA - Winter
2013
Most Influential, First Place, San Mateo County, CA - Winter
2013
Top Allergist and Immunologist , First Place, California - Winter
2013

Affiliations

AAAAI, ACAAI, AAIFNC, AANC, WSAAI, AANC
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