NPPES file of Aug 9, 2026

David A. Nix, MD, PHD

Emergency Medicine Physician · Santa Clara, CA

David A. Nix, MD, PHD is an emergency medicine physician with a practice address in Santa Clara, California, and NPI 1831124775, issued on Jul 11, 2006. Check the license (California A88149, 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
1831124775
Name
David A. Nix
Credential
MD, PHD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A88149 CA
Self-reported in NPPES; status is on the state search
Practice location
700 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-5300
Enumerated
Jul 11, 2006
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070515000653); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 700 Lawrence Expy

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

  1. Rose Abendroth, P.A-C PHDPhysician Assistant1568471126
  2. Joseph Adams, PHARMD.Pharmacist1851625024
  3. Netali AdielDoula1003770652
  4. Abdallah Al-ObaidiStudent in an Organized Health Care Education/Training Program1255133781
  5. Andrea Mae AlafrizPharmacist1770450967
  6. Andria AlbertStudent in an Organized Health Care Education/Training Program1992565493

Verify David A. Nix in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A88149
    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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1% fewer Medicare Part D claims than the average emergency medicine physician in 2024

224 Medicare Part D claims for 184 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 12 claims were for opioids.

  1. David Nix224
  2. Specialty average226

Most prescribed

  1. Ofloxacin15 claims
  2. Ondansetron Odt14 claims
  3. Moxifloxacin13 claims
  4. Fluconazole11 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

  1. Permanente Medical Group IncSanta Clara, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David A. Nix among 7,751 emergency medicine physician records in California

David A. Nix, MD, PHD is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2003 · median 2011 among the 4,560 with a school on file
  • Record last updated2021 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

55 emergency medicine physician records list a practice address in Santa Clara

They are 55 of the 3,436 NPPES records with a practice address in Santa Clara, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Stephen Emond, MDSanta Clara, CA 950511952488801
  2. Shahinoor Esmail, MDSanta Clara, CA 950511164509006
  3. Christina Fong, MDSanta Clara, CA 950511518044452
  4. Gus Garmel, MDSanta Clara, CA 950511235216177
  5. Eric Koscove, MDSanta Clara, CA 950511871670737
  6. Anita Kulkarni, MDSanta Clara, CA 950511982781829
  7. Albert Kuo, MDSanta Clara, CA 950511578640405
  8. Haydn Leung, MDSanta Clara, CA 950511386721215

Common questions

What is David A. Nix, MD, PHD's NPI number?

David A. Nix, MD, PHD's National Provider Identifier (NPI) is 1831124775, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David A. Nix, MD, PHD located?

The NPPES record lists a practice address at 700 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-5300. Providers update this record themselves, so call before visiting.

How can I verify David A. Nix, MD, PHD's license?

NPPES lists California license number A88149, 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 A. Nix, MD, PHD prescribe under Medicare Part D?

In 2024, David A. Nix, MD, PHD had 224 Medicare Part D claims for 184 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.