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Dr. Ronald De la Pena

Obstetrics and Gynecology
Thousand Oaks, CA
31 years experience male

Locations

Office

Thousand Oaks, CA

Address

2230 Lynn Road, Suite 200, Thousand Oaks, CA
Directions

Practice website

Insurances accepted

Anthem BC Life & Health Insurance Company

Blue Cross of California

Cigna

CIGNA Health Care

Health Net

Private Healthcare Systems, Inc (PHCS)

UnitedHealthcare

About

Bio

Dr. Ronald E. de la Peña is a board-certified gynecologist practicing exclusively in Thousand Oaks, California. He has over 25 years of medical experience, and his mission is to provide the highest quality care in women’s health. His scope of training includes gynecology, obstetrics, infertility, menopause and primary care for women. (An expanded practice overview is available at: www.rondelapenamd.com)

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.

Obstetrics and Gynecology

Doctor Q&A

77 Answers
11 Agrees
The number of answers this doctor has agreed with.
A 28-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
The gel is safe: At five weeks a vag. Ultrasound may prove helpful. The gel will give u more Progesterone and may help. If u r rh (-) u may need a Rhogam inject.
A 23-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes: 25 mm is thick for day 15 a hysteroscopy can certainly clarify your condition and an endometrial biopsy is helpful and indicated.
A 34-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: Start with onset of sex then depending on results of pap every 1-3 yrs until 70. Start over if you have a new consort, or if he does.
A 32-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes: Essure is the best, safest, permanent, irreversible contraceptive method for women. In office, local anesth. And a confirmation test after.
A 39-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Hot flashes: Also moods swings insomnia and loss of menses. Early onset has been described in patients before age 40.
A 35-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Ob & L&D: Care during pregnancy and labor and delivery. The laborist works in a hospital or birthing center. The OB has an office and works in l&d.
A 18-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Sometimes: Herpes is the "great imitator" and may be confused for folliculitis or other skin changes. Any genital lesion should be presented to a physician for ... Read More
A 44-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
2 weeks: Allow for healing as evidenced by gradual reduction of bleeding a few days after the procedure.
A 27-year-old male asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
14 days before mense: If u have regular predictable cycles u r ovulating 14 days before menses the "window" to conceive is 3 days before to one day after ovulation good lu... Read More
A male asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Probably normal: Menses can change month to month. If natural cycles, keep changes of stress, illness, diet, and weight may manifest as a change in menses. If on bir... Read More
A 17-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: Regular daily use of ocps has a <1% failure rate. You were one day late with your dose , and used protection. Next time try not to miss a dose. Goo... Read More
A 20-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
More tests: Get a semen analysis and maybe a hysterosalpingogram. See a gynecologist have your cervix checked and perhaps a cervical dilation.
A member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Low: Human papilloma viruses cause most abnormal cervical pap smears. About 5% of paps show surface cell abnormality pre-cancer (dysplasia). Pregnancy do... Read More
A 46-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Incompletely: Acog and many national medical societies provide overview to women's health including sexual problems. A thorough history and physical with a gynecol... Read More
A 29-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: If your hsg after essure showed blockage then your not likely to b pregnant still do a pregnancy test and see your gynecologist for follow up.
A 20-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: You are ovulating/ fertile two weeks before your period.
A 44-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Adnexal v. Adrenal: Your "adnexal" mass refers to a mass in the fallopian tube and or ovary. You probably had a typo in the report.
A 32-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Maybe: You ovulate 14 days before your cycle and you can do a pregnancy test as early as five days before your cycle measure from the start of one cycle to t... Read More
A 23-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes: There are a few ovarian cysts that occur at your age including an endometrioma a serous cyst to name two see your gynecologist and consider laparosco... Read More
A 32-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
1-7 days: Depends on amount of surgery and pain tolerance.
A 43-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Consult Ob/Gyn: At term, you are getting close to labor when contractions are frequent and painful. I you are intolerant of the pain, you need more rest, or consider... Read More
A 18-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
On occasion: A small amount of caffeine is fine, but more troubling is the sugar content and reinforcement of drinking soda. You want the best nutrition during pr... Read More
A 18-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Probably ok: Next visit, discuss this with you obstetrician. Review your fetal ultrasound(s) and see how the baby is growing. Check how much weight you've gained... Read More
A 33-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: Have a thorough discussion with your gynecologist regarding the risks benefits and alternatives the risks are low for complications.
A 46-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes: Sono or maybe better hysteroscopy are alternatives.
A 39-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Online: Basic and scientific information should come electronically as many books are almost out dated when published. Try: acog, nih and mayo clinic sites. F... Read More
A 43-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: When to see the ob/gyn, and or go to labor and delivery. In my community hospital setting, I have patients contact me or l&d and often get an evaluat... Read More
A 34-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Mostly: Safe sex can reduce your risk if he has hpv.
A 35-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Pelvic rest: Stop sex for two weeks. See a gynecologist for an evaluation of other causes of inflammation, a cervical culture, and a vaginal assessment for BV or ... Read More
A 42-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Maybe: Use a condom to reduce vaginal fluid, and there could be irritation of the cervix or vagina. The pap is usually not adversely affected.
A 33-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes, but...: Not all utis are the same. An isolated case, diagnosed recently will be usually treated with a 3 day course of abtx. Recurrent infections, or repeat... Read More
A 42-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
38 wks: Estimated day of delivery is 40 wks from lmp, and ovulation/conception is two wks closer.
A 40-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes: Slim line scopes are very well tolerated and may not need local anesth. Best to ask your gyn.
A 37-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Blocks tubes: Two metal coils inserted in the fallopian tubes during hysteroscopy. The center coil material causes the tube to be blocked shut creating permanent c... Read More
A 47-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Ultrasound: An ultrasound of the pregnancy is the most definitive. Lack of fetal cardiac activity confirms the diagnosis.
A 28-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
27mg daily: The typical diet confers 15 mg of elemental iron per day. The recommended daily dietary allowance of ferrous iron during pregnancy is 27 mg. Every pa... Read More
A 29-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
2 cycles: Let your body heal, and reestablish a normal menstrual.
A 29-year-old male asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: I've not heard of an std caused by antibiotics.
A female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
No: Track regular cycles, ovulation is 14 days before menses.
A 24-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Many reasons: You should start a work-up with your gynecologist. Poor ovulation(s), and thyroid or other hormone imbalances are some of the possibilities.
A 31-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Likely ok: This is common . See how much you've gained thus far. If > 15 lbs not much worry. Have 4-5 small meals /day and keep f/u appt 1-2 wks.
A 21-year-old male asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Prenatal: Pnv are formulated for pregnancy, and are more likely to b covered by health plans.
A 17-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Don't have sex: Hold off on sex until you finish your treatment and your doctors says it is safe.
A 26-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Likely no: Antibiotics as you described are not likely to give you an abnormal period however your ailment may have contributed to not having a normal cycle and ... Read More
A member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Yes: However also adding natural family planning will reduce your risk of conception.
A 20-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Could be normal: Track your cycle over 2 to 3 months for a clearer picture if your cycle is irregular you can do a home pregnancy test and follow up with your gynecolo... Read More
A 20-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Probably ok: Depending on how long you've been on Depo-Provera provera, (medroxyprogesterone) absent menses and irregular spotting is common. If you've been sexua... Read More
A 38-year-old member asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Thick lining: The lining of the uterus should be normal and hyperplasia is a thicker than normal lining it can be treated with medicine then repeat the biopsy to se... Read More
A 46-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
Over 90%: A blind endometrial biopsy may sample as little as 4% of the lining but can be 90% accurate the hysteroscopy adds more clarification and it's biopsy c... Read More
A 32-year-old female asked:
Dr. Ronald De la Pena
Obstetrics and Gynecology 31 years experience
5/1,000: Essure is very effective with only 5/1, 000 patients conceiving after the procedure. The removal is best at the time of insertion because later it i... Read More

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

2
Recommendations
203
Thank you notes
HealthTap member
Mar 30, 2015
Dr. de la Pena is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. de la Pena is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thank you, your answer was very helpful! Thank u for the help
HealthTap member
Thank you, your answer or tip was very helpful! Thank a lot.
HealthTap member
Thanks but I get a lot of scared I don't want to harm baby

Education & Training

Medical/Graduate school

Texas Tech University School of Medicine, TX
Graduated 1991MD

Awards

Chairman Dept. Ob/Gyn, Los Robles Hospital 1999-2003
Chairman Quality Care Commitee Los Robles Hospital 2011
Most Influential, Third Place, Ventura Region, CA - Summer
2013

Affiliations

American Congress of Obstetricians and Gynecologists
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