James Richard Berenson, M.D.
Research Study Specialist · West Hollywood, CA
James Richard Berenson, M.D. is a research study specialist with a practice address in West Hollywood, California, and NPI 1124051560, issued on Jul 9, 2006. Check the license (California G42018, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Richard Berenson
- Credential
- M.D.
- Primary taxonomy
- Research Study Specialist 1744R1102X
- License number
- G42018 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9201 W Sunset Blvd, West Hollywood, CA 90069
- Phone
- (310) 623-1222
- Enumerated
- Jul 9, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (310) 623-1123
- Medicaid ID
- 00G420180 CA
- Medicare enrollment
- Enrolled (PECOS I20040412000279); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest research study specialist records → All 82 in California → Look up another NPI →
Also registered at 9201 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Richard Berenson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G42018Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.4 times the Medicare Part D claims of the average research study specialist in 2024
1,975 Medicare Part D claims for 111 beneficiaries, against an average of 309 among the 12 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims. 36 claims were for opioids.
Most prescribed
- Sarclisa291 claims
- Acyclovir281 claims
- Methylprednisolone254 claims
- Xgeva106 claims
- Pomalyst97 claims
- Revlimid92 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): 90.5 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: $47,916.76
80 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 14 providers of this specialty with any payment received $4,217.62 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.
James Richard Berenson among 82 research study specialist records in California
James Richard Berenson, M.D. is one of 82 research study specialist records with a practice address in California. 4% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileYes · 1% of these records are
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1744R1102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Research Study Specialist providers in California
There are 82 research study specialist records in California.
All 82 in California → Every provider in West Hollywood → Research Study Specialist nationwide →
The 8 research study specialist records with the nearest ZIP codes
- Robert Kern, PHDLos Angeles, CA 900731932201969
- Giovanni Cacciamani, MDLos Angeles, CA 900891104548650
- Manuel Marroquin, CDMLos Angeles, CA 900481164398608
- Jaimie Davis, PHD, RDLos Angeles, CA 900331174754469
- Michael Goran, PHDLos Angeles, CA 900331639300940
- Andrew SomersHollywood, CA 900281730701640
- Robert ContrerasLos Angeles, CA 900221841620333
- Alysa PiarLos Angeles, CA 900161740031103
Common questions
What is James Richard Berenson, M.D.'s NPI number?
James Richard Berenson, M.D.'s National Provider Identifier (NPI) is 1124051560, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Richard Berenson, M.D. located?
The NPPES record lists a practice address at 9201 W Sunset Blvd, West Hollywood, CA, 90069. Phone: (310) 623-1222. Providers update this record themselves, so call before visiting.
How can I verify James Richard Berenson, M.D.'s license?
NPPES lists California license number G42018, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James Richard Berenson, M.D. prescribe under Medicare Part D?
In 2024, James Richard Berenson, M.D. had 1,975 Medicare Part D claims for 111 beneficiaries; the average among research study specialist prescribers was 309. Part D covers Medicare prescriptions only.
What is James Richard Berenson, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.5 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.