Aaron Joshua Feinstein, M.D., M.H.S.
Otolaryngology Physician · Tarzana, CA
Aaron Joshua Feinstein, M.D., M.H.S. is an otolaryngology physician with a practice address in Tarzana, California, and NPI 1043579303, issued on May 8, 2012. Check the license (California A131167, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aaron Joshua Feinstein
- Credential
- M.D., M.H.S.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A131167 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
- May 8, 2012
- Record last updated
- Jan 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (818) 609-1680
- Medicare enrollment
- Enrolled (PECOS I20180621002061); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
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.
- Jerrick Joya, PAPhysician Assistant1770390585
- David Martin, MDOtolaryngology Physician1942379755
- Ajay Narayanan, MDOtolaryngology Physician1659900561
- Dianne Novin, NPFamily Nurse Practitioner1619482098
Verify Aaron Joshua Feinstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A131167Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average otolaryngology physician in 2024
1,089 Medicare Part D claims for 367 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 13 claims were for opioids.
Most prescribed
- Fluticasone Propionate229 claims
- Azelastine Hcl148 claims
- Ipratropium Bromide118 claims
- Amoxicillin-Clavulanate Potass105 claims
- Methylprednisolone85 claims
- Mupirocin41 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): 94.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $261.16
6 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.
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
- 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).
Aaron Joshua Feinstein among 1,212 otolaryngology physician records in California
Aaron Joshua Feinstein, M.D., M.H.S. 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 2012, is newer than 74% of them.
- NPI issued2012 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2012 · median 2004 among the 818 with a school on file
- Record last updated2019 · 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.
All 1,212 in California → Every provider in Tarzana → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Marc Cohen, M.D.Tarzana, CA 913561962632547
- Michael Landman, M.D.Tarzana, CA 913561245237833
- David Martin, MDTarzana, CA 913561942379755
- Ajay Narayanan, MDTarzana, CA 913561659900561
- Adam Friedman, MDValencia, CA 913551265641229
- Stacey Gerbrandt, PA-CValencia, CA 913551083845887
- Travis ShibaSanta Clarita, CA 913551366731481
- Kalpna Durairaj, M.DSun Valley, CA 913521366488603
Common questions
What is Aaron Joshua Feinstein, M.D., M.H.S.'s NPI number?
Aaron Joshua Feinstein, M.D., M.H.S.'s National Provider Identifier (NPI) is 1043579303, issued on May 8, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Joshua Feinstein, M.D., M.H.S. 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 Aaron Joshua Feinstein, M.D., M.H.S.'s license?
NPPES lists California license number A131167, 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 Aaron Joshua Feinstein, M.D., M.H.S. prescribe under Medicare Part D?
In 2024, Aaron Joshua Feinstein, M.D., M.H.S. had 1,089 Medicare Part D claims for 367 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Aaron Joshua Feinstein, M.D., M.H.S.'s MIPS final score?
The 2023 MIPS final score is 94.8 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.