Ronald David Kerwin, MD
Dermatology Physician · West Bloomfield, MI
Ronald David Kerwin, MD is a dermatology physician with a practice address in West Bloomfield, Michigan, and NPI 1265497622, issued on Apr 19, 2006. Check the license (Michigan 044088, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Ronald David Kerwin
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 044088 MI
Self-reported in NPPES; status is on the state search - Practice location
- 6330 Orchard Lake RD, West Bloomfield, MI 48322
- Phone
- (248) 855-3366
- Enumerated
- Apr 19, 2006
- Record last updated
- Nov 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (248) 855-6213
- Medicare enrollment
- Enrolled (PECOS I20100306000359); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1976
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 471 in Michigan → Look up another NPI →
Also registered at 6330 Orchard Lake RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kimberley Behrens, M.D.Dermatopathology (Pathology) Physician1326120023
- Aaron Cetner, M.D.MOHS-Micrographic Surgery Physician1982802245
- Leonard Cetner, M.D.Dermatology Physician1477667590
- Michael Dorman, MDDermatology Physician1841281532
- Maria Kalasho, P.A.-CPhysician Assistant1215126388
- Suchetha Kinhal, MDAllergy & Immunology Physician1750372215
Verify Ronald David Kerwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 044088Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average dermatology physician in 2024
1,662 Medicare Part D claims for 693 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Triamcinolone Acetonide469 claims
- Mupirocin136 claims
- Doxycycline Monohydrate134 claims
- Hydrocortisone110 claims
- Ketoconazole93 claims
- Fluocinonide84 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): 100 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: $1,355.47
63 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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.
Bills Medicare through one group practice
- Midwest Center For Dermatology And Pathology PLLCWest Bloomfield, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald David Kerwin among 471 dermatology physician records in Michigan
Ronald David Kerwin, MD is one of 471 dermatology physician records with a practice address in Michigan. 82% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1976 · median 2008 among the 324 with a school on file
- Record last updated2020 · 55% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Michigan
There are 471 dermatology physician records in Michigan.
All 471 in Michigan → Every provider in West Bloomfield → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Leonard Cetner, M.D.West Bloomfield, MI 483221477667590
- Roxana Chapman, DOWest Bloomfield, MI 483221528049202
- Michael Dorman, MDWest Bloomfield, MI 483221841281532
- Sook HwangWest Bloomfield, MI 483221962897181
- Diane Jackson-Richards, M.D.West Bloomfield, MI 483221992883029
- Leonard Kerwin, M.D.West Bloomfield, MI 483221942525837
- D'Anne Kleinsmith, MDWest Bloomfield, MI 483221902888928
- Suzanne Merkle, MDWest Bloomfield, MI 483221184674798
Common questions
What is Ronald David Kerwin, MD's NPI number?
Ronald David Kerwin, MD's National Provider Identifier (NPI) is 1265497622, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald David Kerwin, MD located?
The NPPES record lists a practice address at 6330 Orchard Lake RD, West Bloomfield, MI, 48322. Phone: (248) 855-3366. Providers update this record themselves, so call before visiting.
How can I verify Ronald David Kerwin, MD's license?
NPPES lists Michigan license number 044088, 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 Ronald David Kerwin, MD prescribe under Medicare Part D?
In 2024, Ronald David Kerwin, MD had 1,662 Medicare Part D claims for 693 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Ronald David Kerwin, MD's MIPS final score?
The 2023 MIPS final score is 100 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.