Grant Nybakken, M.D.
Clinical Pathology/Laboratory Medicine Physician · South San Francisco, CA
Grant Nybakken, M.D. is a clinical pathology/laboratory medicine physician with a practice address in South San Francisco, California, and NPI 1104088400, issued on Jun 27, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grant Nybakken
- Credential
- M.D.
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- Practice location
- 383 E Grand Ave Ste A, South San Francisco, CA 94080
- Phone
- (650) 616-2951
- Enumerated
- Jun 27, 2008
- Entity
- Type 1 · individual
Also registered at 383 E Grand Ave Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Libert, BS, MPHIL, MDCytopathology Physician1124654116
- Sebastian Sasu, M.D.Anatomic Pathology & Clinical Pathology Physician1548387095
Verify Grant Nybakken in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
One hospital or facility affiliation
- Peninsula Pathologists Medical Group IncBurlingame, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Clinical Pathology/Laboratory Medicine Physician providers in California
There are 119 clinical pathology/laboratory medicine physician records in California.
All 119 in California → Every provider in South San Francisco →
Other clinical pathology/laboratory medicine physician records in California
- Liya AbramyanTorrance, CA1316134612
- Maryam Ahmadi, MDOrange, CA1003497678
- Marie-Rose Akin, MDFresno, CA1518988377
- Hadassa AlexanderLos Angeles, CA1982435780
- Raymond Aller, M.D.Vista, CA1346304268
- Gloria AsuncionMartinez, CA1659416873
- Ryan Austin, M.D.La Jolla, CA1235470014
- Frederick Axelrod, MDSan Bernardino, CA1558535740
- Arthur Baca, M.D., PH.D.Alameda, CA1326248816
- Bonnie Balzer, MDWest Hollywood, CA1649247602
Common questions
What is Grant Nybakken, M.D.'s NPI number?
Grant Nybakken, M.D.'s National Provider Identifier (NPI) is 1104088400, issued on Jun 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Grant Nybakken, M.D. located?
The NPPES record lists a practice address at 383 E Grand Ave Ste A, South San Francisco, CA, 94080. Phone: (650) 616-2951. Providers update this record themselves, so call before visiting.
How can I verify Grant Nybakken, M.D.'s license?
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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.