NPPES file of Aug 9, 2026

Adam S. Rosen, D.O.

Orthopaedic Surgery Physician · La Jolla, CA

Adam S. Rosen, D.O. is an orthopaedic surgery physician with a practice address in La Jolla, California, and NPI 1780656728, issued on Feb 3, 2006. Check the license (California 20A9197, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780656728
Name
Adam S. Rosen
Credential
D.O.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
20A9197 CA
Self-reported in NPPES; status is on the state search
Practice location
10666 N Torrey Pines RD, La Jolla, CA 92037
Phone
(858) 554-8178
Enumerated
Feb 3, 2006
Record last updated
Feb 22, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(858) 784-5933
Medicaid ID
00AX91970 CA
Medicare enrollment
Enrolled (PECOS I20050630000239); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2000
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 10666 N Torrey Pines RD

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

  1. Terri Abbott, P.A.Physician Assistant1811165566
  2. Richard Abello, M.D.Diagnostic Radiology Physician1245205996
  3. Amanda Abrisch, AUDAudiologist1780966903
  4. Edsel Abud, MD, PHDAllergy & Immunology Physician1891257192
  5. Christina Adams, MDCardiovascular Disease Physician1023164605
  6. Dylan Adamson, M.D.Transplant Surgery Physician1598030702

Verify Adam S. Rosen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A9197
    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 orthopaedic surgery physician in 2024

103 Medicare Part D claims for 72 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.

  1. Adam Rosen103
  2. Specialty average346

Most prescribed

  1. Amoxicillin39 claims
  2. Celecoxib29 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.

Bills Medicare through one group practice

  1. Scripps HealthLa Jolla, CA

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

Adam S. Rosen among 2,276 orthopaedic surgery physician records in California

Adam S. Rosen, D.O. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 46% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2000 · median 2003 among the 1,347 with a school on file
  • Record last updated2008 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

55 orthopaedic surgery physician records list a practice address in La Jolla

They are 55 of the 3,648 NPPES records with a practice address in La Jolla, and 2,276 orthopaedic surgery physician records in California.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Michael Botte, M.D.La Jolla, CA 920371992770184
  2. James Bruffey, M.D.La Jolla, CA 920371447225446
  3. Clifford Colwell, M.D.La Jolla, CA 920371902871858
  4. Steven Copp, M.D.La Jolla, CA 920371417934027
  5. Robert Eastlack, M.D.La Jolla, CA 920371861471369
  6. Kace Ezzet, M.D.La Jolla, CA 920371134195670
  7. Jan Fronek, M.D.La Jolla, CA 920371770559171
  8. Merlin Hamer, MDLa Jolla, CA 920371578541082

Common questions

What is Adam S. Rosen, D.O.'s NPI number?

Adam S. Rosen, D.O.'s National Provider Identifier (NPI) is 1780656728, issued on Feb 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Adam S. Rosen, D.O. located?

The NPPES record lists a practice address at 10666 N Torrey Pines RD, La Jolla, CA, 92037. Phone: (858) 554-8178. Providers update this record themselves, so call before visiting.

How can I verify Adam S. Rosen, D.O.'s license?

NPPES lists California license number 20A9197, 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 S. Rosen, D.O. prescribe under Medicare Part D?

In 2024, Adam S. Rosen, D.O. had 103 Medicare Part D claims for 72 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

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.