NPPES file of Aug 9, 2026

Adam Anton Sassoon, MD

Adult Reconstructive Orthopaedic Surgery Physician · Los Angeles, CA

Adam Anton Sassoon, MD is an adult reconstructive orthopaedic surgery physician with a practice address in Los Angeles, California, and NPI 1750580882, issued on Jul 18, 2007. Check the license (California C157530, 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
1750580882
Name
Adam Anton Sassoon
Credential
MD
Primary taxonomy
Adult Reconstructive Orthopaedic Surgery Physician 207XS0114X
License numbers
C157530 CA
2013008004 MO
Self-reported in NPPES; status is on the state search
Practice location
10833 LE Conte Ave, Los Angeles, CA 90095
Phone
(310) 319-1234
Enumerated
Jul 18, 2007
Record last updated
Aug 3, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180911003886); 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 10833 LE Conte Ave

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

  1. Kelechi Abanobi, M.DThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1720236953
  2. Afshan Abbasi, M.D.Neonatal-Perinatal Medicine Physician1831214428
  3. Pablo Abbona, MDDiagnostic Radiology Physician1689856239
  4. Amir Abu-Khalil, M.D.Surgery Physician1992095533
  5. Tara Aghaloo, DDS, MD, PHDOral & Maxillofacial Surgery (D.M.D.)1740464692
  6. Nitin Agrawal, MDInternal Medicine Physician1699394338

Verify Adam Anton Sassoon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C157530
    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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70% fewer Medicare Part D claims than the average adult reconstructive orthopaedic surgery physician in 2024

175 Medicare Part D claims for 102 beneficiaries, against an average of 579 among the 1,112 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 40 claims were for opioids.

  1. Adam Sassoon175
  2. Specialty average579

Most prescribed

  1. Cephalexin58 claims
  2. Meloxicam34 claims
  3. Celecoxib31 claims
  4. Tramadol Hcl25 claims
  5. Oxycodone Hcl15 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): 85.2 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 score86.0
  2. Costout of 100 · 30%57.6
  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: $7,345.42

22 payments; by number, the most common kind was food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 1,060 providers of this specialty with any payment received $68,015.27 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adam Sassoon$7,345
  2. Specialty average$68,015

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. Regents OF The University OF CaliforniaSanta Monica, CA

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

Adam Anton Sassoon among 147 adult reconstructive orthopaedic surgery physician records in California

Adam Anton Sassoon, MD is one of 147 adult reconstructive orthopaedic surgery physician records with a practice address in California. 88% 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 32% of them.

  • NPI issued2007 · 32% of these records are older, 54% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2007 · median 2009 among the 112 with a school on file
  • Record last updated2018 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0114X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Reconstructive Orthopaedic Surgery Physician providers in California

There are 147 adult reconstructive orthopaedic surgery physician records in California.

The 8 adult reconstructive orthopaedic surgery physician records with the nearest ZIP codes

  1. Erika Hassan, MDLos Angeles, CA 900951982752762
  2. Albert Stroberg, M.D.Los Angeles, CA 900951891861357
  3. Bert Thomas, M.D.Los Angeles, CA 900951699872366
  4. Murray Wong, M.D.Los Angeles, CA 900951275243339
  5. Guy D Paiement, MDLos Angeles, CA 900481538249776
  6. Rajan Patel, M.D.Los Angeles, CA 900481649294984
  7. Paul Gilbert, M.D.Los Angeles, CA 900331457399784
  8. Nathanael Heckmann, M.D.Los Angeles, CA 900331164833406

Common questions

What is Adam Anton Sassoon, MD's NPI number?

Adam Anton Sassoon, MD's National Provider Identifier (NPI) is 1750580882, issued on Jul 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Adam Anton Sassoon, MD located?

The NPPES record lists a practice address at 10833 LE Conte Ave, Los Angeles, CA, 90095. Phone: (310) 319-1234. Providers update this record themselves, so call before visiting.

How can I verify Adam Anton Sassoon, MD's license?

NPPES lists California license number C157530, 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 Adam Anton Sassoon, MD prescribe under Medicare Part D?

In 2024, Adam Anton Sassoon, MD had 175 Medicare Part D claims for 102 beneficiaries; the average among adult reconstructive orthopaedic surgery physician prescribers was 579. Part D covers Medicare prescriptions only.

What is Adam Anton Sassoon, MD's MIPS final score?

The 2023 MIPS final score is 85.2 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.