Delfin Santos, M.D.
Rheumatology Physician · Rochester, MI
Delfin Santos, M.D. is a rheumatology physician with a practice address in Rochester, Michigan, and NPI 1063420628, issued on Aug 3, 2006. Check the license (Michigan 4301059096, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Delfin Santos
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 4301059096 MI
Self-reported in NPPES; status is on the state search - Practice location
- 135 Barclay Circle, Rochester, MI 48307
- Phone
- (248) 852-2277
- Enumerated
- Aug 3, 2006
- Record last updated
- Nov 30, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (248) 852-2552
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 226 in Michigan → Look up another NPI →
Also registered at 135 Barclay Circle
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abdelwahab Meri, M.D.Internal Medicine Physician1528076619
- Ghazala Zafar, M.D.Internal Medicine Physician1548278906
Verify Delfin Santos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301059096Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average rheumatology physician in 2024
209 Medicare Part D claims for 98 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone30 claims
- Hydroxychloroquine Sulfate23 claims
- Methotrexate20 claims
- Taltz Autoinjector11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $483.42
19 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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.
Delfin Santos among 226 rheumatology physician records in Michigan
Delfin Santos, M.D. is one of 226 rheumatology physician records with a practice address in Michigan. 80% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2018 · 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 207RR0500X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Michigan
There are 226 rheumatology physician records in Michigan.
All 226 in Michigan → Every provider in Rochester → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Patricia Cagnoli, M.D.Rochester Hills, MI 483071457458713
- Roman Czubatyj, M.D.Rochester Hills, MI 483071972797892
- Dana Rockwell, D.O.Rochester Hills, MI 483071912261686
- John Tower, DORochester Hills, MI 483071558329359
- Josephine Aloot, MDRochester Hills, MI 483091700940566
- Phyllis Birkel, MDRochester Hills, MI 483091871657643
- Berj Nercessian, M.D.Sterling Heights, MI 483101093705329
- Ruba Kado, M.D.Bloomfield Hills, MI 483021588876056
Common questions
What is Delfin Santos, M.D.'s NPI number?
Delfin Santos, M.D.'s National Provider Identifier (NPI) is 1063420628, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Delfin Santos, M.D. located?
The NPPES record lists a practice address at 135 Barclay Circle, Rochester, MI, 48307. Phone: (248) 852-2277. Providers update this record themselves, so call before visiting.
How can I verify Delfin Santos, M.D.'s license?
NPPES lists Michigan license number 4301059096, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Delfin Santos, M.D. prescribe under Medicare Part D?
In 2024, Delfin Santos, M.D. had 209 Medicare Part D claims for 98 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Delfin Santos, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.