Cynthia Farner, MD
Obstetrics & Gynecology Physician · San Francisco, CA
Cynthia Farner, MD is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1902942949, issued on Jan 29, 2007. Check the license (California A44581, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cynthia Farner
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A44581 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3625 California St, San Francisco, CA 94118
- Phone
- (415) 668-1010
- Enumerated
- Jan 29, 2007
- Record last updated
- Jul 11, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (415) 668-7465
- Medicare enrollment
- Enrolled (PECOS I20100518000764); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 1980
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3625 California St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margaret Chen, MDObstetrics & Gynecology Physician1578619706
- John Fassett, RNP/CNMAdvanced Practice Midwife1619252509
- Jordan Horowitz, MDObstetrics & Gynecology Physician1942356175
Verify Cynthia Farner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A44581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
587 Medicare Part D claims for 152 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Estradiol178 claims
- Progesterone79 claims
- Estradiol (Twice Weekly)36 claims
- Estradiol-Norethindrone Acetat30 claims
- Valacyclovir28 claims
- Estradiol (Once Weekly)20 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $225.61
9 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Ahmed Abdelaziz, MDSanta Maria, CA1790039733
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
Common questions
What is Cynthia Farner, MD's NPI number?
Cynthia Farner, MD's National Provider Identifier (NPI) is 1902942949, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Farner, MD located?
The NPPES record lists a practice address at 3625 California St, San Francisco, CA, 94118. Phone: (415) 668-1010. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Farner, MD's license?
NPPES lists California license number A44581, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cynthia Farner, MD prescribe under Medicare Part D?
In 2024, Cynthia Farner, MD had 587 Medicare Part D claims for 152 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.