Carl Erdmann Otto, MD
Obstetrics & Gynecology Physician · San Francisco, CA
Carl Erdmann Otto, MD is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1275551087, issued on Jul 18, 2006. Check the license (California G65352, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Carl Erdmann Otto
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G65352 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3700 California St, San Francisco, CA 94118
- Phone
- (415) 750-6400
- Enumerated
- Jul 18, 2006
- Record last updated
- Nov 1, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 3700 California St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Orrin Ailloni-Charas, MDAnesthesiology Physician1790731313
- Regina Arvon, M.D.Maternal & Fetal Medicine Physician1649483991
- Sylvia Balding, NPNurse Practitioner1982894937
- William Berger, MDAnesthesiology Physician1760431803
- Suruchi Bhatia, MDPediatric Endocrinology Physician1336244623
- Lauri Black, MS, CGCGenetic Counselor (M.S.)1376521898
Verify Carl Erdmann Otto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Carl Erdmann Otto among 5,088 obstetrics & gynecology physician records in California
Carl Erdmann Otto, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileNo · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2011 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,088 in California → Every provider in San Francisco → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Catherine Berger-Dujmovic, MDSan Francisco, CA 941181467470070
- Kathryn ClarkSan Francisco, CA 941181154349769
- Jacqueline Fletcher, M.D.San Francisco, CA 941181982796009
- Nelden HagbomSan Francisco, CA 941181467481655
- Holly HolterSan Francisco, CA 941181740219815
- Susan HuangSan Francisco, CA 941181518057322
- Madelyn Kahn, MDSan Francisco, CA 941181861576126
- Frederica Lofquist, M.D.San Francisco, CA 941181750458873
Common questions
What is Carl Erdmann Otto, MD's NPI number?
Carl Erdmann Otto, MD's National Provider Identifier (NPI) is 1275551087, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carl Erdmann Otto, MD located?
The NPPES record lists a practice address at 3700 California St, San Francisco, CA, 94118. Phone: (415) 750-6400. Providers update this record themselves, so call before visiting.
How can I verify Carl Erdmann Otto, MD's license?
NPPES lists California license number G65352, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.