Eric Christopher Buxton, M.D.
Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA
Eric Christopher Buxton, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in San Francisco, California, and NPI 1134210362, issued on Sep 26, 2006. Check the license (California A78113, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Christopher Buxton
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A78113 CA
Self-reported in NPPES; status is on the state search - Practice location
- 350 Parnassus Ave, San Francisco, CA 94117
- Phone
- (415) 681-7707
- Enumerated
- Sep 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 681-0695
- Medicare enrollment
- Enrolled (PECOS I20050603000753); may accept Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 350 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Bagatelos, M.S.N.,N.P.Nurse Practitioner1780881045
- Nathan Becker, M.D.Endocrinology, Diabetes & Metabolism Physician1972696250
- Alan Chong, D.D.SGeneral Practice Dentistry1013265701
- Gregory Chong, D.D.S.General Practice Dentistry1023130747
- Thomas Cicciarelli, PSY.D.Clinical Psychologist1598871865
- Sarah Dobbins, MPH, RNPsychiatric/Mental Health Nurse Practitioner1942750815
Verify Eric Christopher Buxton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A78113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024
6,330 Medicare Part D claims for 705 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Synthroid863 claims
- Levothyroxine Sodium655 claims
- Mounjaro410 claims
- Metformin Hcl Er374 claims
- Liothyronine Sodium359 claims
- Metformin Hcl218 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.
The MIPS final score for 2023 (Medicare payment program): 45.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,752.78
98 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Martha's Vineyard Hospital IncOak Bluffs, MA · Critical Access Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Eric Christopher Buxton among 1,131 endocrinology, diabetes & metabolism physician records in California
Eric Christopher Buxton, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% 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, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1999 · median 2003 among the 779 with a school on file
- Record last updated2007 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in San Francisco → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Nathan Becker, M.D.San Francisco, CA 941171972696250
- Paul Fitzgerald, M.D.San Francisco, CA 941171326356460
- H. Michenfelder, M.D.San Francisco, CA 941171710076534
- E. Myers, M.D.San Francisco, CA 941171992894711
- Yi Brenda Shue, M.D.San Francisco, CA 941171396792610
- Susan Tibuni-Sanders, MDSan Franscico, CA 941171124219316
- Philip Frost, M.DSan Francisco, CA 941181912905928
- Steven Harris, M.D.San Francisco, CA 941151104847532
Common questions
What is Eric Christopher Buxton, M.D.'s NPI number?
Eric Christopher Buxton, M.D.'s National Provider Identifier (NPI) is 1134210362, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric Christopher Buxton, M.D. located?
The NPPES record lists a practice address at 350 Parnassus Ave, San Francisco, CA, 94117. Phone: (415) 681-7707. Providers update this record themselves, so call before visiting.
How can I verify Eric Christopher Buxton, M.D.'s license?
NPPES lists California license number A78113, 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 Eric Christopher Buxton, M.D. prescribe under Medicare Part D?
In 2024, Eric Christopher Buxton, M.D. had 6,330 Medicare Part D claims for 705 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Eric Christopher Buxton, M.D.'s MIPS final score?
The 2023 MIPS final score is 45.1 of 100. 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.