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Dr. Steven Machtinger

Allergy and Immunology
San Mateo, CA
45 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 45-year-old male asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Not urticaria: Urticaria are very itchy spots fading away in a day often to be replaced with more hives that also last for a day. All allergic rashes itch. Rashes c... Read More
A 35-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
No: Gastritis involves the stomach. Wheat intolerance involves the small intestine.
A member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Like impetigo: Bed bug bites look like any insect bite.The fact that you wake up with them & they are numerous alerts you that you're sleeping with an uninvited gues... Read More
A 36-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
A few weeks: Sometimes a few months. It depends on severity.
A 51-year-old male asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Maybe: It is true that damage to one testicle can trigger the immune system to make ant-sperm antibodies that then attacks both the injured & uninjured testi... Read More
A 47-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Allergic shiners: Any allergy that causes nasal stuffiness will lead to dark, swollen circles under your eyes. This is called allergic shiners. Blood leaving your nose ... Read More
A 25-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Please define: When i say "hypersensitivity" i mean allergy. Please ask your question again describing what your hypersensitive reaction entailed.
A female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Fruit & corn syrup: Fructose is the sugar found in fruit and corn. Watch out for corn syrup.
A 23-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Oxygen best for baby: You don't list any asthma drugs. If you are having symptoms of asthma - cough, wheeze, difficulty breathing - you may be depriving your fetus of oxyge... Read More
A member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
By 6 months of age!: Ige allergy antibodies do not cross the placenta so when present are the infant's not the mother's. But the presence of allergy antibodies on skin or ... Read More
A 20-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
No: In growing children large doses of Prednisone used control your allergies or asthma may affect adult height. For inhaled steroids used for asthma cont... Read More
A 31-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Pretty well: Most people get good relief using this topical corticosteroid spray 1-2 puffs each nostril daily. Sometimes you have to use if twice a day to get symp... Read More
A female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Probably OK: You are probably OK. The primary reason in blood draws that sometimes blood comes out quickly like flowing water and other times slowly like syrup has... Read More
A 24-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Perhaps: When you have asthma upper respiratory infections like a cold can often trigger asthma symptoms. Colds also sometimes lead to pneumonia or bronchitis.... Read More
A 25-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Physical urticaria: Are a set of conditions where mast cells release histamine & other biochemical mediators in response to physical stimuli rather than illness or allerg... Read More
A 26-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Try goat's milk: Your problem sounds more like an intolerance than a true allergy. It's not lactose intolerance as the lactose content of cow and buffalo milks are sim... Read More
A 18-year-old male asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Probably eczema: Eczema aka atopic dermatitis has many appearances but is always itchy, is relieved by skin moisturizers, and commonly appears in elbow & knee creases,... Read More
A 27-year-old male asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
A purified form: Loratidine is a mixture of equal parts desloratidine & its inactive mirror image compound. In biochemistry there are many such molecules with identica... Read More
A 36-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Hops or barley: There are some people allergic to hops or barley used to make beer. Its may also be that the alcohol in beer causes nasal congestion that you mistake ... Read More
A 34-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Yes.: Pregnancy may not affect your asthma, make it better, or make it worse. Now you have two lives to protect yours & the new family member growing inside... Read More
A 39-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Try these sites: Food allergy and anaphylaxis network: www.Foodallergy.Org kids with food allergies foundation: www.Community.Kidswithfoodallergies.Org/ foodily... Read More
A 36-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Moderate RAST result: Dr. Shulan is correct: type 3 immune reactions involve igg & antigen. "class 3 allergy" may also refer to rast, a blood test for detecting ige against... Read More
A 45-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
In utero: The immune system develops in the fetus and is functioning at birth. Passive maternal protection is provided by transfer of antibodies across the plac... Read More
A 37-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Avoid fruit: But you can eat meat, fish, fowl, starches, grains, dairy, eggs, all cooked vegetables, some raw vegetables, oils, spices. You'll want to avoid most f... Read More
A 47-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Probably not: Humidifiers and vaporizers add moisture to the air but this added moisture has little effect beyond the nasal passages. Adding moisture to the bedroom... Read More
A 46-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Maybe: Definitely speak to your surgeon. If your appendix needs to come out your surgeon and the anesthesiologist can deal with the problem. If you are havin... Read More
A 44-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Allergic shiners: Or lack of sleep. Allergic shiners are signs of allergic rhinitis (see photo). Allergic rhinitis often accompanies asthma. If asthma is keeping you up... Read More
A member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Cold, allergy, sinus: But which? That is the eternal question. If symptoms have been present less than 1 week & mucous is yellow or green it's almost certainly a cold. Rx: ... Read More
A 46-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Crusty rashes: Infected eczema, impetigo, pemphigus, and shingles bear some resemblance. An experienced physician or other health care professional you identify the ... Read More
A 41-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Indefinitely: With appropriate monitoring by a physician experienced in using this medication - as long as you need it. Is it working? That's the big question.
A 29-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Never: Celiac disease is completely treatable through strict avoidance of gluten found in wheat, oats and barley. Once your digestive system recovers you sho... Read More
A member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
A free clinic: The fda has removed all otc medications for asthma so nothing is available without prescription. If you don't have a doctor and can't afford one you s... Read More
A 47-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Ask your allergist: Each allergy office has its own recommendations regarding when to stop antihistamines before skin testing. At our office those taken more than once a ... Read More
A 29-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Your hands: You might have brushed against it with your face. Much more commonly you had the sap on your hands and then touched your face.
A 36-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Avoid San Joaquin: Valley and other areas of the southwest & northern mexico where the mold, coccidioidomycosis immitis is found. The high frequency of cases in central ... Read More
A 30-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Absolutely: You may because burning mouth syndrome is not contagious. Be gentle.
A 41-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Isolated mouth sore: Cankers are isolated shallow ulcers on the inside of the lip, lining of the cheeks or on the tongue. They hurt even though they're no more than 2-3 mi... Read More
A 23-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Stop Symbicort (budesonide and formoterol) now: Your reaction could be do to many things. One possibility is an adverse reaction to formeterol, the long-acting bronchodilator in symbicort (budesonid... Read More
A 37-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Allegra & Claritin (loratadine): Are both safe to use with diazepam because neither one can make you drowsy. Zyrtec might be ok. Avoid benadryl (diphenhydramine).
A 35-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
From anyone: If you haven't had chickenpox (varicella) or the vaccine you can get it from anyone. Pregnant moms-to-be who have had chickenpox will transfer passive... Read More
A 37-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
On rare occasions: Dr. Westfield is correct. The condition is called dermatitis herpetiformis, an intensely itchy sometimes blistering rash associated with gluten entero... Read More
A 30-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
No.: Unsightly but not dangerous. Chewing your cuticles, however, may lead to a staphylococcal infection.
A 29-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Yes.: Mast cells are the source of histamine and other biologically active mediators that trigger hives.
A 34-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Yes: Untreated celiac disease can result in malnutrition and vitamin deficiencies inimical to good health.
A 24-year-old female asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Positional: Is your son ilying down right after taking his soy milk at night? If vomiting depends on position - sitting or standing versus lying down - the proble... Read More
A 30-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Unrelated.: Yeast infections anywhere do not typically trigger an immune response with swollen glands. You need to see your doctor for this one...And soon.
A 26-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Yes.: Immunotherapy - a series of injections of cat and/or dog dander under the skin over several years - will help you develop some tolerance to pet exposu... Read More
A 32-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Lack of demand: Although its mode of action is different singulair (montelukast) is about as effective as cromolyn. It's also more convenient to use. Once this oral a... Read More
A 31-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Yes.: Leukotriene receptor antagonists, like singulair, are asthma controller medications that you swallow. Albuterol, the most common bronchodilator, is av... Read More
A member asked:
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
No rash no allergy: I suspect that the heat and the humidity gave you prickly heat. Itching without a rash is not due to allergy or to insect bites.

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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
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less