NPPES file of Aug 9, 2026

David W. Martin, MD

Otolaryngology Physician · Tarzana, CA

David W. Martin, MD is an otolaryngology physician with a practice address in Tarzana, California, and NPI 1942379755, issued on Nov 7, 2006. Check the license (California 135733, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942379755
Name
David W. Martin
Credential
MD
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
135733 CA
Self-reported in NPPES; status is on the state search
Practice location
5525 Etiwanda Ave Ste 211, Tarzana, CA 91356
Phone
(818) 609-0600
Enumerated
Nov 7, 2006
Record last updated
May 22, 2026
Fax
(818) 609-1680
Medicare enrollment
Enrolled (PECOS I20151005001017); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 1993
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 5525 Etiwanda Ave Ste 211

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

  1. Aaron Feinstein, M.D., M.H.S.Otolaryngology Physician1043579303
  2. Jerrick Joya, PAPhysician Assistant1770390585
  3. Ajay Narayanan, MDOtolaryngology Physician1659900561
  4. Dianne Novin, NPFamily Nurse Practitioner1619482098

Verify David W. Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 135733
    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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3.3 times the Medicare Part D claims of the average otolaryngology physician in 2024

1,806 Medicare Part D claims for 612 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 17 claims were for opioids.

  1. David Martin1,806
  2. Specialty average541

Most prescribed

  1. Famotidine393 claims
  2. Azelastine Hcl376 claims
  3. Fluticasone Propionate198 claims
  4. Ipratropium Bromide196 claims
  5. Clotrimazole-Betamethasone98 claims
  6. Methylprednisolone90 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.

The MIPS final score for 2023 (Medicare payment program): 97 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $422.33

8 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Martin$422.33
  2. Specialty average$1,922.50

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Ent Group OF Los AngelesSherman Oaks, CA

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

David W. Martin among 1,212 otolaryngology physician records in California

David W. Martin, MD is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1993 · median 2004 among the 818 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Otolaryngology Physician providers in California

There are 1,212 otolaryngology physician records in California.

The 8 otolaryngology physician records with the nearest ZIP codes

  1. Marc Cohen, M.D.Tarzana, CA 913561962632547
  2. Aaron Feinstein, M.D., M.H.S.Tarzana, CA 913561043579303
  3. Michael Landman, M.D.Tarzana, CA 913561245237833
  4. Ajay Narayanan, MDTarzana, CA 913561659900561
  5. Adam Friedman, MDValencia, CA 913551265641229
  6. Stacey Gerbrandt, PA-CValencia, CA 913551083845887
  7. Travis ShibaSanta Clarita, CA 913551366731481
  8. Kalpna Durairaj, M.DSun Valley, CA 913521366488603

Common questions

What is David W. Martin, MD's NPI number?

David W. Martin, MD's National Provider Identifier (NPI) is 1942379755, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David W. Martin, MD located?

The NPPES record lists a practice address at 5525 Etiwanda Ave Ste 211, Tarzana, CA, 91356. Phone: (818) 609-0600. Providers update this record themselves, so call before visiting.

How can I verify David W. Martin, MD's license?

NPPES lists California license number 135733, 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 W. Martin, MD prescribe under Medicare Part D?

In 2024, David W. Martin, MD had 1,806 Medicare Part D claims for 612 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.

What is David W. Martin, MD's MIPS final score?

The 2023 MIPS final score is 97 of 100. 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.