NPPES file of Aug 9, 2026

Daniel James Firl, MD

Surgery Physician · Stanford, CA

Daniel James Firl, MD is a surgery physician with a practice address in Stanford, California, and NPI 1942706940, issued on Mar 30, 2018. Check the license (California A206854, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942706940
Name
Daniel James Firl
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License numbers
A206854 CA
238211 NC
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Mar 30, 2018
Record last updated
Jul 14, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Daniel James Firl in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A206854
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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84% fewer Medicare Part D claims than the average surgery physician in 2024

23 Medicare Part D claims for 15 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.

  1. Daniel Firl23
  2. Specialty average147

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.

Daniel James Firl among 3,118 surgery physician records in California

Daniel James Firl, 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 2018, is newer than 89% of them.

  • NPI issued2018 · 89% of these records are older, 9% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • 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).

47 surgery physician records list a practice address in Stanford

They are 47 of the 5,606 NPPES records with a practice address in Stanford, and 3,118 surgery physician records in California.

The 8 surgery physician records with the nearest ZIP codes

  1. Mona Beaunoyer, MDStanford, CA 943051750314506
  2. Stephan Busque, MDStanford, CA 943051508891052
  3. Waldo Concepcion, MDStanford, CA 943051770518870
  4. Myriam Curet, M.D.Stanford, CA 943051912093550
  5. Jaime Dutton, MDStanford, CA 943051861611725
  6. Abigail Hoffman, MDStanford, CA 943051336391929
  7. Stefanie Jeffrey, MDStanford, CA 943051326174285
  8. Byrne Lee, MDPalo Alto, CA 943051134137110

Common questions

What is Daniel James Firl, MD's NPI number?

Daniel James Firl, MD's National Provider Identifier (NPI) is 1942706940, issued on Mar 30, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Daniel James Firl, MD located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Daniel James Firl, MD's license?

NPPES lists California license number A206854, 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 Daniel James Firl, MD prescribe under Medicare Part D?

In 2024, Daniel James Firl, MD had 23 Medicare Part D claims for 15 beneficiaries; the average among surgery physician prescribers was 147. 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.