Keenan L. Hacker, DO
Emergency Medicine Physician · Muskegon, MI
Keenan L. Hacker, DO is an emergency medicine physician with a practice address in Muskegon, Michigan, and NPI 1295470623, issued on Apr 29, 2022. Check the license (Michigan 5101027749, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Keenan L. Hacker
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 5101027749 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1675 Leahy St Ste 201, Muskegon, MI 49442
- Phone
- (231) 672-8289
- Enumerated
- Apr 29, 2022
- Record last updated
- Mar 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20250319002628); accepts Medicare assignment
- Medical or professional school
- University Of Pikeville, Kentucky College Of Osteopathic Med, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1675 Leahy St Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nabiha Adams, DOEmergency Medicine Physician1295319515
- Katherine Allen, MDObstetrics & Gynecology Physician1366029985
- Taylor BarthelsEmergency Medicine Physician1265177794
- Brooke Baudoin, DOStudent in an Organized Health Care Education/Training Program1972441525
- Brittany Beeler, DOStudent in an Organized Health Care Education/Training Program1437851649
- Terryce Blanchard, DOEmergency Medicine Physician1407591571
Verify Keenan L. Hacker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101027749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average emergency medicine physician in 2024
132 Medicare Part D claims for 88 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen17 claims
- Cephalexin16 claims
- Azithromycin13 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.
Bills Medicare through one group practice
- Lake Michigan Emergency Specialists, PLLCMuskegon, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keenan L. Hacker among 3,083 emergency medicine physician records in Michigan
Keenan L. Hacker, DO is one of 3,083 emergency medicine 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 2022, is newer than 86% of them.
- NPI issued2022 · 86% of these records are older, 10% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2013 among the 1,931 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
71 emergency medicine physician records list a practice address in Muskegon
They are 71 of the 2,646 NPPES records with a practice address in Muskegon, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Muskegon → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Harry Arthur, DOMuskegon, MI 494421609847094
- Joseph Betcher, M.D.Muskegon, MI 494421730443607
- Timothy Cook, DOMuskegon, MI 494421902286248
- James Farinosi, DOMuskegon, MI 494421053330688
- Jennifer GoodrichMuskegon, MI 494421467733063
- Justin Grill, D.O.Muskegon, MI 494421598964447
- Scott Hooker, DOMuskegon, MI 494421831579325
- Peter Kamhout, M.D.Muskegon, MI 494421538180732
Common questions
What is Keenan L. Hacker, DO's NPI number?
Keenan L. Hacker, DO's National Provider Identifier (NPI) is 1295470623, issued on Apr 29, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Keenan L. Hacker, DO located?
The NPPES record lists a practice address at 1675 Leahy St Ste 201, Muskegon, MI, 49442. Phone: (231) 672-8289. Providers update this record themselves, so call before visiting.
How can I verify Keenan L. Hacker, DO's license?
NPPES lists Michigan license number 5101027749, 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 Keenan L. Hacker, DO prescribe under Medicare Part D?
In 2024, Keenan L. Hacker, DO had 132 Medicare Part D claims for 88 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.