Gary Roy Carlson, MD
Specialist · Westlake Village, CA
Gary Roy Carlson, MD is a specialist with a practice address in Westlake Village, California, and NPI 1144280181, issued on Mar 24, 2006. Check the license (California G39594, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gary Roy Carlson
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- G39594 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1240 S Westlake Blvd, Westlake Village, CA 91361
- Phone
- (805) 495-0551
- Enumerated
- Mar 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (805) 496-8079
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 1240 S Westlake Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aurelia Gharzuzi Ciuica, FNP-BCFamily Nurse Practitioner1770935389
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Verify Gary Roy Carlson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G39594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average specialist in 2024
277 Medicare Part D claims for 127 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Triamcinolone Acetonide34 claims
- Valacyclovir32 claims
- Minocycline Hcl26 claims
- Mupirocin21 claims
- Clotrimazole-Betamethasone19 claims
- Fluorouracil19 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): 88.3 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).
Industry payments in 2024: $729.35
29 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Gary Roy Carlson among 5,749 specialist records in California
Gary Roy Carlson, MD 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 fileNo · 19% of these records are
- Record last updated2026 · 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).
17 specialist records list a practice address in Westlake Village
They are 17 of the 1,397 NPPES records with a practice address in Westlake Village, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Westlake Village → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Neeta Ambe-Crain, M.D.Westlake Village, CA 913611093832255
- Michael Bastien, MDWestlake Village, CA 913611053371096
- Randolph Capri, MDWestlake Village, CA 913611750340345
- Glenn Cohen, M.D.Westlake Village, CA 913611881755056
- John Darin, M.D.Westlake Village, CA 913611902801764
- Kenneth Diddie, M.D.Westlake Village, CA 913611184684219
- Rosemary Flores, M.D.Thousand Oaks, CA 913611871593095
- Robert Ghaussy, M.D.Thousand Oaks, CA 913611053311274
Common questions
What is Gary Roy Carlson, MD's NPI number?
Gary Roy Carlson, MD's National Provider Identifier (NPI) is 1144280181, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary Roy Carlson, MD located?
The NPPES record lists a practice address at 1240 S Westlake Blvd, Westlake Village, CA, 91361. Phone: (805) 495-0551. Providers update this record themselves, so call before visiting.
How can I verify Gary Roy Carlson, MD's license?
NPPES lists California license number G39594, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gary Roy Carlson, MD prescribe under Medicare Part D?
In 2024, Gary Roy Carlson, MD had 277 Medicare Part D claims for 127 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Gary Roy Carlson, MD's MIPS final score?
The 2023 MIPS final score is 88.3 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.