David A. Denenholz, M.D.
Specialist · Pasadena, CA
David A. Denenholz, M.D. is a specialist with a practice address in Pasadena, California, and NPI 1801837331, issued on Jun 8, 2006. Check the license (California G37998, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David A. Denenholz
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G37998 CA
Self-reported in NPPES; status is on the state search - Practice location
- 960 E Green St, Pasadena, CA 91106
- Phone
- (626) 449-4207
- Enumerated
- Jun 8, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (626) 449-0925
- Medicare enrollment
- Enrolled (PECOS I20110609000129); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 960 E Green St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David A. Denenholz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G37998Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average specialist in 2024
367 Medicare Part D claims for 196 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin66 claims
- Fluorouracil51 claims
- Triamcinolone Acetonide44 claims
- Doxycycline Monohydrate29 claims
- Valacyclovir28 claims
- Doxycycline Hyclate19 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 practice group's MIPS final score for 2023 (Medicare payment program): 31.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $680.36
21 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- David Denenholz MD IncPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David A. Denenholz among 5,749 specialist records in California
David A. Denenholz, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1977 · median 1989 among the 1,075 with a school on file
- Record last updated2026 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Pasadena → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Ayad Alanizi, M.D.Pasadena, CA 911061588726756
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- Mason Lai, LEPasadena, CA 911061902498157
- Salathiel Matos, P.A.Pasadena, CA 911061659444792
- Charles Niesen, M.D.Pasadena, CA 911061710915830
- Gabriel Pai, M.D.Pasadena, CA 911061356388110
- Robert Seltzer, M.D.Pasadena, CA 911061437127099
- Gaye Shepard, LCSW, PH.D.Pasadena, CA 911061669501037
Common questions
What is David A. Denenholz, M.D.'s NPI number?
David A. Denenholz, M.D.'s National Provider Identifier (NPI) is 1801837331, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David A. Denenholz, M.D. located?
The NPPES record lists a practice address at 960 E Green St, Pasadena, CA, 91106. Phone: (626) 449-4207. Providers update this record themselves, so call before visiting.
How can I verify David A. Denenholz, M.D.'s license?
NPPES lists California license number G37998, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does David A. Denenholz, M.D. prescribe under Medicare Part D?
In 2024, David A. Denenholz, M.D. had 367 Medicare Part D claims for 196 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is David A. Denenholz, M.D.'s MIPS final score?
The 2023 MIPS final score is 31.3 of 100, reported for the practice group. 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.