Marian Kim, MD
Obstetrics & Gynecology Physician · Redwood City, CA
Marian Kim, MD is an obstetrics & gynecology physician with a practice address in Redwood City, California, and NPI 1447327861, issued on Nov 29, 2006. Check the license (California G73646, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marian Kim
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G73646 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2950 Whipple Ave, Redwood City, CA 94062
- Phone
- (650) 364-2142
- Enumerated
- Nov 29, 2006
- Record last updated
- May 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070823000905); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2950 Whipple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Buenrostro, NPWomen's Health Nurse Practitioner1063771806
- Ronald Hennefarth, DDSGeneral Practice Dentistry1366552515
- Gerard Hoff, MDObstetrics & Gynecology Physician1831267939
- John Hoff, MDObstetrics & Gynecology Physician1598832917
- Andrea Johansson, NPObstetrics & Gynecology Nurse Practitioner1326422411
- Julianne O'Callahan, MDObstetrics & Gynecology Physician1932158805
Verify Marian Kim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G73646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
150 Medicare Part D claims for 40 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Estradiol27 claims
- Fluconazole19 claims
- Progesterone16 claims
- Estradiol (Twice Weekly)11 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marian Kim among 5,088 obstetrics & gynecology physician records in California
Marian Kim, 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
- Graduated1990 · 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 Redwood City → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Elaine Chien, MDRedwood City, CA 940621457423295
- John Hoff, MDRedwood City, CA 940621598832917
- Gerard Hoff, MDRedwood City, CA 940621831267939
- Beverly Joyce, M.D.Redwood City, CA 940621275582660
- Andrew Liu, M.D.Redwood City, CA 940621700835162
- Julianne O'Callahan, MDRedwood City, CA 940621932158805
- Tatiana Spirtos, M.D.Redwood City, CA 940621710903133
- Manjita Bhaumik, MDRedwood City, CA 940631518045012
Common questions
What is Marian Kim, MD's NPI number?
Marian Kim, MD's National Provider Identifier (NPI) is 1447327861, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marian Kim, MD located?
The NPPES record lists a practice address at 2950 Whipple Ave, Redwood City, CA, 94062. Phone: (650) 364-2142. Providers update this record themselves, so call before visiting.
How can I verify Marian Kim, MD's license?
NPPES lists California license number G73646, 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 Marian Kim, MD prescribe under Medicare Part D?
In 2024, Marian Kim, MD had 150 Medicare Part D claims for 40 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.