Roy C. Grekin, MD
Dermatology Physician · Santa Barbara, CA
Roy C. Grekin, MD is a dermatology physician with a practice address in Santa Barbara, California, and NPI 1245278506, issued on Jun 2, 2006. Check the license (California G51012, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roy C. Grekin
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- G51012 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2320 Bath Street, Santa Barbara, CA 93105
- Phone
- (805) 569-1164
- Enumerated
- Jun 2, 2006
- Record last updated
- May 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 569-1094
- Medicaid IDs
- 00G510120 CA
G510120 CA - Medicare enrollment
- Enrolled (PECOS I20080225000774); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1977
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 2320 Bath Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Luna, M.D.Diagnostic Radiology Physician1083669048
- Giang Nguyen, MDDiagnostic Radiology Physician1831107911
Verify Roy C. Grekin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G51012Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average dermatology physician in 2024
36 Medicare Part D claims for 26 beneficiaries, against an average of 797 among the 12,802 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): 74.5 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 one group practice
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roy C. Grekin among 2,083 dermatology physician records in California
Roy C. Grekin, MD is one of 2,083 dermatology physician records with a practice address in California. 83% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1977 · median 2006 among the 1,450 with a school on file
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Santa Barbara → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Tamara BerrySanta Barbara, CA 931051407112212
- Brittany Buhalog, M.D.Santa Barbara, CA 931051720474513
- Aegean Chan, MDSanta Barbara, CA 931051356607451
- Sara Dill, MDSanta Barbara, CA 931051578573358
- Peter Ford, M.D.Santa Barbara, CA 931051164451639
- Corey Frucht, M.D., PH.D.Santa Barbara, CA 931051457606238
- Elizabeth GrossmanSanta Barbara, CA 931051366608994
- Kimberly Hurvitz, M.D.Santa Barbara, CA 931051497810402
Common questions
What is Roy C. Grekin, MD's NPI number?
Roy C. Grekin, MD's National Provider Identifier (NPI) is 1245278506, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roy C. Grekin, MD located?
The NPPES record lists a practice address at 2320 Bath Street, Santa Barbara, CA, 93105. Phone: (805) 569-1164. Providers update this record themselves, so call before visiting.
How can I verify Roy C. Grekin, MD's license?
NPPES lists California license number G51012, 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 Roy C. Grekin, MD prescribe under Medicare Part D?
In 2024, Roy C. Grekin, MD had 36 Medicare Part D claims for 26 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Roy C. Grekin, MD's MIPS final score?
The 2023 MIPS final score is 74.5 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.