NPPES file of Aug 9, 2026

Timothy J. Cook, DO

Emergency Medicine Physician · Muskegon, MI

Timothy J. Cook, DO is an emergency medicine physician with a practice address in Muskegon, Michigan, and NPI 1902286248, issued on Jun 2, 2015. Check the license (Michigan 5101019510, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902286248
Name
Timothy J. Cook
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
5101019510 MI
Self-reported in NPPES; status is on the state search
Practice location
1700 Clinton St, Muskegon, MI 49442
Phone
(231) 728-4936
Enumerated
Jun 2, 2015
Record last updated
Sep 13, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180821000644); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1700 Clinton St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eric Applebach, MDEmergency Medicine Physician1205465143
  2. Nancy Arbuckle -Hinks, LPCProfessional Counselor1982702817
  3. Trevor Armstrong, DOEmergency Medicine Physician1770004848
  4. Evan BevoldenMedical Physician Assistant1093066870
  5. Jay Biessel, DOEmergency Medicine Physician1235510843
  6. James Bos, M.D.Diagnostic Radiology Physician1700878584

Verify Timothy J. Cook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101019510
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.0 times the Medicare Part D claims of the average emergency medicine physician in 2024

463 Medicare Part D claims for 295 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 95 claims were for opioids.

  1. Timothy Cook463
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen75 claims
  2. Prednisone54 claims
  3. Cephalexin32 claims
  4. Ondansetron Odt30 claims
  5. Cefuroxime19 claims
  6. Doxycycline Hyclate19 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 2 group practices

  1. Lake Michigan Emergency Specialists, PLLCShelby, MI
  2. Lake Michigan Observation Services PLLCMuskegon, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Timothy J. Cook among 3,083 emergency medicine physician records in Michigan

Timothy J. Cook, 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 2015, is newer than 59% of them.

  • NPI issued2015 · 59% of these records are older, 38% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2015 · median 2013 among the 1,931 with a school on file
  • Record last updated2018 · 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.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Harry Arthur, DOMuskegon, MI 494421609847094
  2. Joseph Betcher, M.D.Muskegon, MI 494421730443607
  3. James Farinosi, DOMuskegon, MI 494421053330688
  4. Jennifer GoodrichMuskegon, MI 494421467733063
  5. Justin Grill, D.O.Muskegon, MI 494421598964447
  6. Scott Hooker, DOMuskegon, MI 494421831579325
  7. Peter Kamhout, M.D.Muskegon, MI 494421538180732
  8. Justin Kreuze, DOMuskegon, MI 494421952781445

Common questions

What is Timothy J. Cook, DO's NPI number?

Timothy J. Cook, DO's National Provider Identifier (NPI) is 1902286248, issued on Jun 2, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Timothy J. Cook, DO located?

The NPPES record lists a practice address at 1700 Clinton St, Muskegon, MI, 49442. Phone: (231) 728-4936. Providers update this record themselves, so call before visiting.

How can I verify Timothy J. Cook, DO's license?

NPPES lists Michigan license number 5101019510, 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 Timothy J. Cook, DO prescribe under Medicare Part D?

In 2024, Timothy J. Cook, DO had 463 Medicare Part D claims for 295 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.