Mark K. Potter, MD
Surgery Physician · Saint Helena, CA
Mark K. Potter, MD is a surgery physician with a practice address in Saint Helena, California, and NPI 1689640955, issued on Feb 27, 2006. Check the license (California G86920, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark K. Potter
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G86920 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1127 Pope St, Saint Helena, CA 94574
- Phone
- (707) 967-1970
- Enumerated
- Feb 27, 2006
- Record last updated
- Aug 31, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (707) 967-1972
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 1127 Pope St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathleen Herrera, M.S.W., L.C.S.W.Clinical Social Worker1790863231
Verify Mark K. Potter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G86920Check 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): 78.7 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).
Mark K. Potter among 3,118 surgery physician records in California
Mark K. Potter, MD is one of 3,118 surgery physician records with a practice address in California. 75% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2010 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 surgery physician records list a practice address in Saint Helena
They are 4 of the 232 NPPES records with a practice address in Saint Helena, and 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Saint Helena → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Emmett Tetz, M.D.Saint Helena, CA 945741457332777
- Juan Vasquez, MDSaint Helena, CA 945741477593713
- Charles Wilson, M.D.Saint Helena, CA 945741295933471
- Jhoanne Bautista, M.D. PH.D.San Leandro, CA 945771831517358
- Louis Ivey, M.D.San Leandro, CA 945771932287794
- Todd Olsen, MDSan Leandro, CA 945771841378692
- Michael Peterson, M.D.San Leandro, CA 945771255419024
- Rene Ramirez, M.D.San Leandro, CA 945771619146388
Common questions
What is Mark K. Potter, MD's NPI number?
Mark K. Potter, MD's National Provider Identifier (NPI) is 1689640955, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark K. Potter, MD located?
The NPPES record lists a practice address at 1127 Pope St, Saint Helena, CA, 94574. Phone: (707) 967-1970. Providers update this record themselves, so call before visiting.
How can I verify Mark K. Potter, MD's license?
NPPES lists California license number G86920, 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 Mark K. Potter, MD's MIPS final score?
The 2023 MIPS final score is 78.7 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.