Roger Courtney Garrison, DO
Internal Medicine Physician · Moreno Valley, CA
Roger Courtney Garrison, DO is an internal medicine physician with a practice address in Moreno Valley, California, and NPI 1013941475, issued on Jul 10, 2006. Check the license (California 20A7705, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roger Courtney Garrison
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A7705 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26520 Cactus Ave, Moreno Valley, CA 92555
- Phone
- (951) 486-5700
- Enumerated
- Jul 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (951) 486-5705
- Medicaid ID
- 00AX77050 CA
- Medicare enrollment
- Enrolled (PECOS I20040416001490); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1999
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 26520 Cactus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ihab Abed, MDStudent in an Organized Health Care Education/Training Program1912830514
- Mohamed Abu-Qaoud, M.D.Internal Medicine Physician1366635534
- Barbara Ackerman, PH.D.Clinical Psychologist1639126410
- Sana Afroz, MDRheumatology Physician1356724074
- Georgina Aguilar-Portillo, MDFamily Medicine Physician1144804691
- Adolfo Aguilera, MDFamily Medicine Physician1477609808
Verify Roger Courtney Garrison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
113 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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): 85.5 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 2 group practices
- County OF RiversideMoreno Valley, CA
- Riverside Faculty Medical Group IncMoreno Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roger Courtney Garrison among 17,696 internal medicine physician records in California
Roger Courtney Garrison, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1999 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
67 internal medicine physician records list a practice address in Moreno Valley
They are 67 of the 2,698 NPPES records with a practice address in Moreno Valley, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Moreno Valley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohamed Abu-Qaoud, M.D.Moreno Valley, CA 925551366635534
- Scott Allen, M.D.Moreno Valley, CA 925551184681710
- Douglas Hegstad, M.D.Moreno Valley, CA 925551649204009
- Jeffrey Katz, MDMoreno Valley, CA 925551316971476
- Daniel Kim, M.D.Moreno Valley, CA 925551295769651
- Lawrence Loo, MDMoreno Valley, CA 925551750311718
- William Ochoa, MDMoreno Valley, CA 925551558574954
- Lakshmi Puvvula, M.D.Moreno Valley, CA 925551295848174
Common questions
What is Roger Courtney Garrison, DO's NPI number?
Roger Courtney Garrison, DO's National Provider Identifier (NPI) is 1013941475, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roger Courtney Garrison, DO located?
The NPPES record lists a practice address at 26520 Cactus Ave, Moreno Valley, CA, 92555. Phone: (951) 486-5700. Providers update this record themselves, so call before visiting.
How can I verify Roger Courtney Garrison, DO's license?
NPPES lists California license number 20A7705, 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 Roger Courtney Garrison, DO prescribe under Medicare Part D?
In 2024, Roger Courtney Garrison, DO had 113 Medicare Part D claims for 32 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Roger Courtney Garrison, DO's MIPS final score?
The 2023 MIPS final score is 85.5 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.