Donald Wayne Gusfa, DO
Internal Medicine Physician · Kalamazoo, MI
Donald Wayne Gusfa, DO is an internal medicine physician with a practice address in Kalamazoo, Michigan, and NPI 1609510205, issued on Apr 21, 2022. Check the license (Michigan 5101028578, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Donald Wayne Gusfa
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 5101028578 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5629 Stadium Dr Ste B, Kalamazoo, MI 49009
- Phone
- (269) 544-3270
- Enumerated
- Apr 21, 2022
- Record last updated
- Jul 1, 2026
- Fax
- (269) 544-3288
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 5629 Stadium Dr Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald Wayne Gusfa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101028578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
554 Medicare Part D claims for 55 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 35 claims were for opioids.
Most prescribed
- Atorvastatin Calcium57 claims
- Losartan Potassium24 claims
- Amlodipine Besylate22 claims
- Hydrocodone-Acetaminophen17 claims
- Fluticasone Propionate16 claims
- Eliquis14 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.
Donald Wayne Gusfa among 5,735 internal medicine physician records in Michigan
Donald Wayne Gusfa, DO is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 87% of them.
- NPI issued2022 · 87% of these records are older, 10% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
158 internal medicine physician records list a practice address in Kalamazoo
They are 158 of the 6,553 NPPES records with a practice address in Kalamazoo, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Kalamazoo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Saadat Abbasi, MDKalamazoo, MI 490091912005596
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- Adam Basha, D.O.Kalamazoo, MI 490091023759214
- Katherine Bolton, DOKalamazoo, MI 490091780113258
- Albert Cabala, MDKalamazoo, MI 490091124098694
- Sara Custodio, M.D.Kalamazoo, MI 490091417162173
- Stephen Dallas, M.D., M.A.Kalamazoo, MI 490091356393482
- Branko Grinfeld, M.D.Kalamazoo, MI 490091356436976
Common questions
What is Donald Wayne Gusfa, DO's NPI number?
Donald Wayne Gusfa, DO's National Provider Identifier (NPI) is 1609510205, issued on Apr 21, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Donald Wayne Gusfa, DO located?
The NPPES record lists a practice address at 5629 Stadium Dr Ste B, Kalamazoo, MI, 49009. Phone: (269) 544-3270. Providers update this record themselves, so call before visiting.
How can I verify Donald Wayne Gusfa, DO's license?
NPPES lists Michigan license number 5101028578, 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 Donald Wayne Gusfa, DO prescribe under Medicare Part D?
In 2024, Donald Wayne Gusfa, DO had 554 Medicare Part D claims for 55 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.