James P. Grenert, MD
Anatomic Pathology Physician · San Francisco, CA
James P. Grenert, MD is an anatomic pathology physician with a practice address in San Francisco, California, and NPI 1174572390, issued on May 6, 2006. Check the license (California A78348, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James P. Grenert
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology Physician 207ZP0101X
- License number
- A78348 CA
Self-reported in NPPES; status is on the state search - Practice location
- 505 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 353-1613
- Enumerated
- May 6, 2006
- Record last updated
- Dec 9, 2025
- Fax
- (415) 353-1916
- Medicaid ID
- 00A783480 CA
- Medicare enrollment
- Enrolled (PECOS I20050715001129); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 2000
- Entity
- Type 1 · individual
8 nearest anatomic pathology physician records → All 386 in California → Look up another NPI →
Also registered at 505 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
- Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
- Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
- Abul Abbas, MBBSAnatomic Pathology Physician1881652964
- Jesse Abelson, MDInternal Medicine Physician1083843817
- Rhonald AbitonaAcute Care Nurse Practitioner1164993473
Verify James P. Grenert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A78348Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- University OF California San FranciscoSan Francisco, CA
- University OF California Sfgh Medical GroupSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James P. Grenert among 386 anatomic pathology physician records in California
James P. Grenert, MD is one of 386 anatomic pathology physician records with a practice address in California. 56% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 55% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2000 · median 2000 among the 190 with a school on file
- Record last updated2025 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology Physician providers in California
There are 386 anatomic pathology physician records in California.
All 386 in California → Every provider in San Francisco → Anatomic Pathology Physician nationwide →
The 8 anatomic pathology physician records with the nearest ZIP codes
- Abul Abbas, MBBSSan Francisco, CA 941431881652964
- Soo-Jin Cho, M.D./PH.D.San Francisco, CA 941431104079524
- Won-Tak Choi, M.D., PH.D.San Francisco, CA 941431275860918
- Andrew Horvai, MDSan Francisco, CA 941431891752309
- Grace Kim, MDSan Francisco, CA 941431447218599
- Steven Long, M.D.San Francisco, CA 941431194737908
- Aras Mattis, M.D., PH.D.San Francisco, CA 941431326374869
- James McKerrow, MDSan Francisco, CA 941431922066067
Common questions
What is James P. Grenert, MD's NPI number?
James P. Grenert, MD's National Provider Identifier (NPI) is 1174572390, issued on May 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James P. Grenert, MD located?
The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 353-1613. Providers update this record themselves, so call before visiting.
How can I verify James P. Grenert, MD's license?
NPPES lists California license number A78348, 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.
What is James P. Grenert, MD's MIPS final score?
The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.