David Nagle, MD
Internal Medicine Physician · San Francisco, CA
David Nagle, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1538516141, issued on May 24, 2016. Check the license (California A162707, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Nagle
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A162707 CA
267437 MA
Self-reported in NPPES; status is on the state search - Practice location
- 513 Parnassus Ave # 357, San Francisco, CA 94143
- Phone
- (617) 643-0596
- Enumerated
- May 24, 2016
- Record last updated
- Mar 20, 2022
- Medicare enrollment
- Enrolled (PECOS I20220909000383); 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 513 Parnassus Ave # 357
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Chang, MDInternal Medicine Physician1598090441
Verify David Nagle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A162707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
312 Medicare Part D claims for 222 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Gavilyte-C81 claims
- Peg3350-Sod Sul-Nacl-Kcl-Asb-C78 claims
- Omeprazole50 claims
- Linzess16 claims
- Sod Sulf-Potass Sulf-Mag Sulf15 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.
Bills Medicare through one group practice
- Atrius Health IncDedham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Nagle among 17,696 internal medicine physician records in California
David Nagle, MD 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 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 →
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Common questions
What is David Nagle, MD's NPI number?
David Nagle, MD's National Provider Identifier (NPI) is 1538516141, issued on May 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is David Nagle, MD located?
The NPPES record lists a practice address at 513 Parnassus Ave # 357, San Francisco, CA, 94143. Phone: (617) 643-0596. Providers update this record themselves, so call before visiting.
How can I verify David Nagle, MD's license?
NPPES lists California license number A162707, 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 David Nagle, MD prescribe under Medicare Part D?
In 2024, David Nagle, MD had 312 Medicare Part D claims for 222 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.