Ronald Frederick Williamson, MD
Family Medicine Physician · Detroit, MI
Ronald Frederick Williamson, MD is a family medicine physician with a practice address in Detroit, Michigan, and NPI 1659482826, issued on Aug 31, 2006. Check the license (Michigan RW046156, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Ronald Frederick Williamson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- RW046156 MI
Self-reported in NPPES; status is on the state search - Practice location
- 17130 Schaefer Hwy, Detroit, MI 48235
- Phone
- (313) 862-3104
- Enumerated
- Aug 31, 2006
- Record last updated
- Jan 22, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (313) 862-1290
- Medicaid IDs
- 1972489 MI
4348045 MI - Medicare enrollment
- Enrolled (PECOS I20060201000507); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Verify Ronald Frederick Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license RW046156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average family medicine physician in 2024
1,903 Medicare Part D claims for 139 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium171 claims
- Amlodipine Besylate142 claims
- Pravastatin Sodium106 claims
- Metformin Hcl83 claims
- Levothyroxine Sodium61 claims
- Rosuvastatin Calcium58 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.
Industry payments in 2024: $221.31
17 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Ronald Frederick Williamson among 6,013 family medicine physician records in Michigan
Ronald Frederick Williamson, MD is one of 6,013 family medicine physician records with a practice address in Michigan. 75% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1983 · median 2008 among the 3,493 with a school on file
- 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 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
222 family medicine physician records list a practice address in Detroit
They are 222 of the 19,832 NPPES records with a practice address in Detroit, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Detroit → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Debra Alspector, MDDetroit, MI 482351386757375
- James Blessman, MDDetroit, MI 482351952341836
- Zack Brown, MDDetroit, MI 482351447331160
- Diana Ferrans, M.D.Detroit, MI 482351851469662
- Homa Hasnain, M.D.Detroit, MI 482351285695874
- Carla Hunter, M.D.Detroit, MI 482351689721375
- Idu Nwapa, M.D.Detroit, MI 482351114095924
- Deepika Parekh, MDDetroit, MI 482351205851433
Common questions
What is Ronald Frederick Williamson, MD's NPI number?
Ronald Frederick Williamson, MD's National Provider Identifier (NPI) is 1659482826, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Frederick Williamson, MD located?
The NPPES record lists a practice address at 17130 Schaefer Hwy, Detroit, MI, 48235. Phone: (313) 862-3104. Providers update this record themselves, so call before visiting.
How can I verify Ronald Frederick Williamson, MD's license?
NPPES lists Michigan license number RW046156, 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 Frederick Williamson, MD prescribe under Medicare Part D?
In 2024, Ronald Frederick Williamson, MD had 1,903 Medicare Part D claims for 139 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.