Dr. Nancy A. Towbin, MD
OB-GYN (Obstetrics & Gynecology) (Gynecology Physician)
- Medicare participating
At a glance
- Medical school
- University of California, San Diego School of Medicine (1991)
- Years since graduation
- 35
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 550
Licensed in California since 1992, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1991Medical school: University of California, San Diego School of Medicine
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Gynecology Physician primary
CA license G74730 (first issued 1992; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Map: OB-GYN (Obstetrics & Gynecology) per capita by county →
Where they work
Hospitals
- Uci Health-Orange Orange, CA
- Hoag Memorial Hospital Presbyterian Newport Beach, CA
- Providence St. Jude Medical Center Fullerton, CA
- Pih Health Hospital-Whittier Whittier, CA
Medical groups
- Regents of the University of California (60 clinicians)
- Regents of the University of California (52 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 550
- Services billed
- 1,292
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 435 | 336 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 280 | 280 |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 174 | 174 |
| Established patient office or other outpatient visit, 30-39 minutes | 110 | 91 |
| Injection of drug or substance under skin or into muscle | 58 | 20 |
| Urinalysis, manual test | 46 | 29 |
| New patient office or other outpatient visit, 30-44 minutes | 44 | 44 |
| Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 43 | 38 |
| Telephone medical discussion with physician, 21-30 minutes | 20 | 18 |
| Telephone medical discussion with physician, 11-20 minutes | 16 | 16 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Estradiol Other prescribers in Yorba Linda, CA | 337 |
| Progesterone (progesterone, micronized) Other prescribers in Yorba Linda, CA | 336 |
| Estradiol (Twice Weekly) (estradiol) Other prescribers in Yorba Linda, CA | 291 |
| Zolpidem Tartrate Other prescribers in Yorba Linda, CA | 163 |
| Rosuvastatin Calcium Other prescribers in Yorba Linda, CA | 159 |
| Levothyroxine Sodium Other prescribers in Yorba Linda, CA | 109 |
| Dotti (estradiol) Other prescribers in Yorba Linda, CA | 93 |
| Oxybutynin Chloride Er (oxybutynin chloride) Other prescribers in Yorba Linda, CA | 64 |
| Premarin (estrogens, conjugated) Other prescribers in Yorba Linda, CA | 59 |
| Atorvastatin Calcium Other prescribers in Yorba Linda, CA | 54 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $15.64 in total to this clinician.
| Hologic Sales and Service, LLC | $15.64 |
|---|
| Food and Beverage | $15.64 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.