NPPES file of Aug 9, 2026

Abie Avraham Hershel Mendelsohn, M.D.

Otolaryngology Physician · Los Angeles, CA

Abie Avraham Hershel Mendelsohn, M.D. is an otolaryngology physician with a practice address in Los Angeles, California, and NPI 1396934824, issued on Oct 22, 2007. Check the license (California A103554, 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
1396934824
Name
Abie Avraham Hershel Mendelsohn
Credential
M.D.
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
A103554 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Ucla Medical Plz Ste 550, Los Angeles, CA 90095
Phone
(310) 570-0235
Enumerated
Oct 22, 2007
Record last updated
Dec 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(310) 570-0240
Medicare enrollment
Enrolled (PECOS I20120504000470); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 200 Ucla Medical Plz Ste 550

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

  1. Mohamed Aboueisha, MDOtolaryngology Physician1316678881
  2. Daniel Beswick, MDOtolaryngology Physician1831455328
  3. Elizabeth BorowiecOtolaryngology Physician1861071045
  4. Carlos Castellanos, MDStudent in an Organized Health Care Education/Training Program1982306858
  5. Julia Dmowska, MDOtolaryngology Physician1689291486
  6. Victor Duarte, MDOtolaryngology Physician1437449311

Verify Abie Avraham Hershel Mendelsohn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A103554
    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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43% more Medicare Part D claims than the average otolaryngology physician in 2024

774 Medicare Part D claims for 275 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 13 claims were for opioids.

  1. Abie Mendelsohn774
  2. Specialty average541

Most prescribed

  1. Azelastine Hcl161 claims
  2. Ipratropium Bromide157 claims
  3. Fluticasone Propionate143 claims
  4. Omeprazole76 claims
  5. Famotidine66 claims
  6. Amoxicillin-Clavulanate Potass24 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): 86.3 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.

  1. Qualityout of 100 · 30% of the final score85.9
  2. Costout of 100 · 30%64.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $851.59

15 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. 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. Abie Mendelsohn$851.59
  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. Geoffrey Trenkle DO A Professional Medical CorporationLos Angeles, CA

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

Abie Avraham Hershel Mendelsohn among 1,212 otolaryngology physician records in California

Abie Avraham Hershel Mendelsohn, M.D. 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 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 42% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2006 · median 2004 among the 818 with a school on file
  • Record last updated2020 · 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. Gerald BerkeLos Angeles, CA 900951174537575
  2. Keith Blackwell, MDLos Angeles, CA 900951669496964
  3. Dinesh Chhetri, MDLos Angeles, CA 900951598878753
  4. Quinton Gopen, M.D.Los Angeles, CA 900951114955788
  5. Christian Head, MDLos Angeles, CA 900951790700094
  6. Robert KangLos Angeles, CA 900951316059348
  7. Paul Kedeshian, MDLos Angeles, CA 900951073539060
  8. Philip Knott, MDLos Angeles, CA 900951730291386

Common questions

What is Abie Avraham Hershel Mendelsohn, M.D.'s NPI number?

Abie Avraham Hershel Mendelsohn, M.D.'s National Provider Identifier (NPI) is 1396934824, issued on Oct 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Abie Avraham Hershel Mendelsohn, M.D. located?

The NPPES record lists a practice address at 200 Ucla Medical Plz Ste 550, Los Angeles, CA, 90095. Phone: (310) 570-0235. Providers update this record themselves, so call before visiting.

How can I verify Abie Avraham Hershel Mendelsohn, M.D.'s license?

NPPES lists California license number A103554, 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 Abie Avraham Hershel Mendelsohn, M.D. prescribe under Medicare Part D?

In 2024, Abie Avraham Hershel Mendelsohn, M.D. had 774 Medicare Part D claims for 275 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.

What is Abie Avraham Hershel Mendelsohn, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.3 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.