Maureen O. Khoo, MD
Obstetrics & Gynecology Physician · San Francisco, CA
Maureen O. Khoo, MD is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1932293560, issued on Oct 3, 2006. Check the license (California 626786, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maureen O. Khoo
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 626786 CA
G83835 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Van Ness Ave, San Francisco, CA 94109
- Phone
- (415) 600-5760
- Enumerated
- Oct 3, 2006
- Record last updated
- Jun 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (415) 369-1389
- Medicare enrollment
- Enrolled (PECOS I20070208000421); may accept Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 1100 Van Ness Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maureen O. Khoo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 626786Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
110 Medicare Part D claims for 47 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Alendronate Sodium35 claims
- Estradiol13 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: $350.28
19 payments; by number, the most common kind was food and beverage; the largest payer was Mayne Pharma Commercial 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.
Maureen O. Khoo among 5,088 obstetrics & gynecology physician records in California
Maureen O. Khoo, 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. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1992 · median 2004 among the 2,700 with a school on file
- Record last updated2020 · 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.
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
- Anna Buchsbaum, M.D.San Francisco, CA 941091689806317
- Izumi Cabrera, M.D.San Francisco, CA 941091346430584
- Karen Chu, MDSan Francisco, CA 941091053436899
- Jason Dimsdale, MDSan Francisco, CA 941091457333973
- Geraldine EkpoSan Francisco, CA 941091356503643
- Stacy Fang, M.D.San Francisco, CA 941091558763250
- Laurie Green, M.D.San Francisco, CA 941091679641658
- Sarah Hebl, M.D.San Francisco, CA 941091649536483
Common questions
What is Maureen O. Khoo, MD's NPI number?
Maureen O. Khoo, MD's National Provider Identifier (NPI) is 1932293560, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maureen O. Khoo, MD located?
The NPPES record lists a practice address at 1100 Van Ness Ave, San Francisco, CA, 94109. Phone: (415) 600-5760. Providers update this record themselves, so call before visiting.
How can I verify Maureen O. Khoo, MD's license?
NPPES lists California license number 626786, 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 Maureen O. Khoo, MD prescribe under Medicare Part D?
In 2024, Maureen O. Khoo, MD had 110 Medicare Part D claims for 47 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.