Ethan Andrew Winkler, M.D., PH.D.
Neurological Surgery Physician · San Francisco, CA
Ethan Andrew Winkler, M.D., PH.D. is a neurological surgery physician with a practice address in San Francisco, California, and NPI 1205271236, issued on May 3, 2013. Check the license (California A139840, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ethan Andrew Winkler
- Credential
- M.D., PH.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License numbers
- A139840 CA
64617 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 400 Parnassus Ave # A808, San Francisco, CA 94143
- Phone
- (415) 353-7500
- Enumerated
- May 3, 2013
- Record last updated
- Oct 31, 2023
- Fax
- (415) 353-2889
- Medicare enrollment
- Enrolled (PECOS I20230516000914); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Also registered at 400 Parnassus Ave # A808
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nima Alan, M.D.Neurological Surgery Physician1194106526
- Caroline Belkoura, PHDClinical Neuropsychologist1427299965
- Lewis Blevins, MDEndocrinology, Diabetes & Metabolism Physician1295822393
- Andrew GogosNeurological Surgery Physician1922652403
- Charlotte Huie, NPNurse Practitioner1457878027
- Christine Macasieb, N.P.Nurse Practitioner1760798763
Verify Ethan Andrew Winkler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139840Check 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): 93.4 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).
Industry payments in 2024: $951.10
24 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 5,377 providers of this specialty with any payment received $14,925.58 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.
Bills Medicare through 2 group practices
- Ucsf Medical Group Business ServicesBerkeley, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ethan Andrew Winkler among 929 neurological surgery physician records in California
Ethan Andrew Winkler, M.D., PH.D. is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 74% of them.
- NPI issued2013 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2005 among the 612 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in San Francisco → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Manish Aghi, MD PHDSan Francisco, CA 941431689647778
- Christopher Ames, MDSan Francisco, CA 941431265485155
- Mitchel Berger, MDSan Francisco, CA 941431538117981
- Nicholas Butowski, MDSan Francisco, CA 941431184681009
- Susan Chang, MDSan Francisco, CA 941431346299518
- Nalin Gupta, MDSan Francisco, CA 941431811955438
- Evren Keles, M.D.San Francisco, CA 941431407872674
- Praveen Mummaneni, M.D.San Francisco, CA 941431407960099
Common questions
What is Ethan Andrew Winkler, M.D., PH.D.'s NPI number?
Ethan Andrew Winkler, M.D., PH.D.'s National Provider Identifier (NPI) is 1205271236, issued on May 3, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ethan Andrew Winkler, M.D., PH.D. located?
The NPPES record lists a practice address at 400 Parnassus Ave # A808, San Francisco, CA, 94143. Phone: (415) 353-7500. Providers update this record themselves, so call before visiting.
How can I verify Ethan Andrew Winkler, M.D., PH.D.'s license?
NPPES lists California license number A139840, 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 Ethan Andrew Winkler, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 93.4 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.