Robert Charles Mackersie, MD
Surgery Physician · San Francisco, CA
Robert Charles Mackersie, MD is a surgery physician with a practice address in San Francisco, California, and NPI 1831144583, issued on May 23, 2006. Check the license (California A34587, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Charles Mackersie
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A34587 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Ave, San Francisco, CA 94110
- Phone
- (415) 206-4634
- Enumerated
- May 23, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (415) 206-5484
- Medicaid ID
- 00A345870 CA
- Medicare enrollment
- Enrolled (PECOS I20081216000685); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1978
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 1001 Potrero Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Abbs, M.D.Internal Medicine Physician1295269983
- Atokena AbeStudent in an Organized Health Care Education/Training Program1043130149
- Mary Ann AbilleRegistered Nurse1699155804
- Nasrin Aboudamous, FNPFamily Nurse Practitioner1699579912
- Elizabeth AdvientoRegistered Nurse1124968987
- Rocio Agraz-Lara, RN, PHNRegistered Nurse1003075995
Verify Robert Charles Mackersie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A34587Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average surgery physician in 2024
16 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 91.9 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 one group practice
- 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).
Robert Charles Mackersie among 3,118 surgery physician records in California
Robert Charles Mackersie, 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 fileYes · 61% of these records are
- Graduated1978 · median 2003 among the 1,901 with a school on file
- Record last updated2026 · 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).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in San Francisco → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Andre Campbell, MDSan Francisco, CA 941101306891064
- Melissa Coleman, M.D.San Francisco, CA 941101205093143
- Joseph CuschieriSan Francisco, CA 941101881770667
- Kent GarberSan Francisco, CA 941101891114898
- Jennifer Gurney, MDSan Francisco, CA 941101154471704
- Jan Horn, MDSan Francisco, CA 941101578516373
- Mary Margaret Knudson, MDSan Francisco, CA 941101912946674
- Elizaveta MinkoSan Francisco, CA 941101568996676
Common questions
What is Robert Charles Mackersie, MD's NPI number?
Robert Charles Mackersie, MD's National Provider Identifier (NPI) is 1831144583, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Charles Mackersie, MD located?
The NPPES record lists a practice address at 1001 Potrero Ave, San Francisco, CA, 94110. Phone: (415) 206-4634. Providers update this record themselves, so call before visiting.
How can I verify Robert Charles Mackersie, MD's license?
NPPES lists California license number A34587, 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 Robert Charles Mackersie, MD prescribe under Medicare Part D?
In 2024, Robert Charles Mackersie, MD had 16 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Robert Charles Mackersie, MD's MIPS final score?
The 2023 MIPS final score is 91.9 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.