Derrick Williamson, DO
Family Medicine Physician · Southfield, MI
Derrick Williamson, DO is a family medicine physician with a practice address in Southfield, Michigan, and NPI 1215922059, issued on Sep 19, 2005. Check the license (Michigan 5101009333, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Derrick Williamson
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 5101009333 MI
DW009333 MI
Self-reported in NPPES; status is on the state search - Practice location
- 20755 Greenfield RD Ste 100, Southfield, MI 48075
- Phone
- (947) 282-5009
- Enumerated
- Sep 19, 2005
- Record last updated
- Nov 2, 2022
- Fax
- (248) 809-2319
- Medicaid IDs
- 1215922059 MI
437095911 MI - Medicare enrollment
- Enrolled (PECOS I20080201000541); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 1985
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 20755 Greenfield RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jackqulyn BrownFamily Nurse Practitioner1194591719
- Sharon Obuzor, FNPFamily Nurse Practitioner1902473911
- Hani Saad, M.D.Internal Medicine Physician1457331969
- Remi Soile, M.D.Internal Medicine Physician1366510893
Verify Derrick Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101009333Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
372 Medicare Part D claims for 30 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine-Olmesartan34 claims
- Atorvastatin Calcium31 claims
- Levothyroxine Sodium19 claims
- Rosuvastatin Calcium17 claims
- Allopurinol16 claims
- Metoprolol Succinate15 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: $2,850.53
20 payments; by number, the most common kind was food and beverage; the largest payer was ModernaTX, 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.
Derrick Williamson among 6,013 family medicine physician records in Michigan
Derrick Williamson, DO 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1985 · median 2008 among the 3,493 with a school on file
- Record last updated2022 · 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).
105 family medicine physician records list a practice address in Southfield
They are 105 of the 5,689 NPPES records with a practice address in Southfield, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Southfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Esther Aoigan, M.D.Southfield, MI 480751588654776
- Patricia Barber, MDSouthfield, MI 480751396747499
- Loren Chudler, DOSouthfield, MI 480751164477816
- George Dean, M.D.Southfield, MI 480751154394674
- Braswell Deen, MDSouthfield, MI 480751003810839
- Pedro Dumadag, MDSouthfield, MI 480751386623932
- Joshua Gibson, MDSouthfield, MI 480751194791889
- Julie Hairston, D.O.Southfield, MI 480751366402133
Common questions
What is Derrick Williamson, DO's NPI number?
Derrick Williamson, DO's National Provider Identifier (NPI) is 1215922059, issued on Sep 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Derrick Williamson, DO located?
The NPPES record lists a practice address at 20755 Greenfield RD Ste 100, Southfield, MI, 48075. Phone: (947) 282-5009. Providers update this record themselves, so call before visiting.
How can I verify Derrick Williamson, DO's license?
NPPES lists Michigan license number 5101009333, 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 Derrick Williamson, DO prescribe under Medicare Part D?
In 2024, Derrick Williamson, DO had 372 Medicare Part D claims for 30 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.