Lee S. Rosen, M.D.
Specialist · Santa Monica, CA
Lee S. Rosen, M.D. is a specialist with a practice address in Santa Monica, California, and NPI 1346295870, issued on May 23, 2006. Check the license (California A49741, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lee S. Rosen
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A49741 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2020 Santa Monica Blvd, Santa Monica, CA 90404
- Phone
- (310) 633-8400
- Enumerated
- May 23, 2006
- Record last updated
- Sep 24, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (310) 633-8419
- Medicare enrollment
- Enrolled (PECOS I20040702000503); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 2020 Santa Monica Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Valentina AlvadzhyanPharmacist1487017182
- Rachelle Ancona, PHARMDPharmacist1053807529
- Peter Barakat, PHARMDAmbulatory Care Pharmacist1629439468
- Ralph Buoncristiani, D.D.S.Dentist1356481683
- Nancy Bush, NPNurse Practitioner1760607212
- Elizabeth Cray, NPNurse Practitioner1740405372
Verify Lee S. Rosen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A49741Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average specialist in 2024
160 Medicare Part D claims for 55 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Imbruvica18 claims
- Pantoprazole Sodium14 claims
- Braftovi11 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): 86.1 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).
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaEncino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lee S. Rosen among 5,749 specialist records in California
Lee S. Rosen, 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
- Graduated1990 · median 1989 among the 1,075 with a school on file
- Record last updated2012 · 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 Santa Monica → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Robert Adair, M.D.Santa Monica, CA 904041629013321
- Prabhtej Brara, M.D.Santa Monica, CA 904041215917752
- John Edwards, M.DSanta Monica, CA 904041952326928
- Hyman Gross, M.D.Santa Monica, CA 904041356383350
- Sean Lai, M.D,Santa Monica, CA 904041396739470
- Robert Levin, M.D.Santa Monica, CA 904041992725527
- Terry Reichelderfer, M.D.Santa Monica, CA 904041992818736
- John Schofield, D.O.Santa Monica, CA 904041205811023
Common questions
What is Lee S. Rosen, M.D.'s NPI number?
Lee S. Rosen, M.D.'s National Provider Identifier (NPI) is 1346295870, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lee S. Rosen, M.D. located?
The NPPES record lists a practice address at 2020 Santa Monica Blvd, Santa Monica, CA, 90404. Phone: (310) 633-8400. Providers update this record themselves, so call before visiting.
How can I verify Lee S. Rosen, M.D.'s license?
NPPES lists California license number A49741, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Lee S. Rosen, M.D. prescribe under Medicare Part D?
In 2024, Lee S. Rosen, M.D. had 160 Medicare Part D claims for 55 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Lee S. Rosen, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.1 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.