Chen-Ping Butler, MD, MPH
Internal Medicine Physician · San Francisco, CA
Chen-Ping Butler, MD, MPH is an internal medicine physician with a practice address in San Francisco, California, and NPI 1487277679, issued on May 21, 2020. Check the license (California A196950, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chen-Ping Butler
- Credential
- MD, MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A196950 CA
MT220505 PA
Self-reported in NPPES; status is on the state search - Practice location
- 559 Clay St FL 2, San Francisco, CA 94111
- Phone
- (888) 663-6331
- Enumerated
- May 21, 2020
- Record last updated
- May 19, 2025
- Fax
- (415) 252-7176
- Medicare enrollment
- Enrolled (PECOS I20240920003281); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 559 Clay St FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Avery Manville, FNP-CNurse Practitioner1548835408
- Angelica Shih, PA-CPhysician Assistant1326825340
Verify Chen-Ping Butler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A196950Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
74 Medicare Part D claims for 27 beneficiaries, against an average of 3,176 among the 108,855 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.
Bills Medicare through one group practice
- One Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chen-Ping Butler among 17,696 internal medicine physician records in California
Chen-Ping Butler, MD, MPH is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Andrew Diamond, MD, PHDSan Francisco, CA 941111154347235
- Frank Dumont, MDSan Francisco, CA 941111629063136
- Mark Marin, MDSan Francisco, CA 941111144375668
- Susan Mayo, M.D.San Francisco, CA 941111386696185
- Neetu Nebhwani, MDSan Francisco, CA 941111942457908
Common questions
What is Chen-Ping Butler, MD, MPH's NPI number?
Chen-Ping Butler, MD, MPH's National Provider Identifier (NPI) is 1487277679, issued on May 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Chen-Ping Butler, MD, MPH located?
The NPPES record lists a practice address at 559 Clay St FL 2, San Francisco, CA, 94111. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.
How can I verify Chen-Ping Butler, MD, MPH's license?
NPPES lists California license number A196950, 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 Chen-Ping Butler, MD, MPH prescribe under Medicare Part D?
In 2024, Chen-Ping Butler, MD, MPH had 74 Medicare Part D claims for 27 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.