NPPES file of Aug 9, 2026

Joseph L. Warren, D.O.

Emergency Medical Services (Emergency Medicine) Physician · Dearborn, MI

Joseph L. Warren, D.O. is an emergency medical services (emergency medicine) physician with a practice address in Dearborn, Michigan, and NPI 1104805944, issued on Jan 11, 2006. Check the license (Michigan 5101015058, 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
1104805944
Name
Joseph L. Warren
Credential
D.O.
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
5101015058 MI
Self-reported in NPPES; status is on the state search
Practice location
18101 Oakwood Blvd, Dearborn, MI 48124
Phone
(313) 593-7000
Enumerated
Jan 11, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid IDs
11-4801135 MI
11-4801082 MI
11-4801108 MI
11-4801117 MI
Medicare enrollment
Enrolled (PECOS I20050408000705); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 2001
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 18101 Oakwood Blvd

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

  1. Omar Abbas, MDDiagnostic Radiology Physician1255225751
  2. Ahmed AbdelrahimInternal Medicine Physician1376160960
  3. Sarah Abdelsamad, MDGeriatric Medicine (Internal Medicine) Physician1518451236
  4. Ahmed AbdulbagiInternal Medicine Physician1154005817
  5. Mohammad Abed Alhaleem, M.D.Student in an Organized Health Care Education/Training Program1275372963
  6. Sindhoora Adyanthaya, MDInternal Medicine Physician1053974758

Verify Joseph L. Warren 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 5101015058
    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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60% more Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024

468 Medicare Part D claims for 271 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. 64 claims were for opioids.

  1. Joseph Warren468
  2. Specialty average292

Most prescribed

  1. Ondansetron Odt69 claims
  2. Cyclobenzaprine Hcl50 claims
  3. Ibuprofen46 claims
  4. Hydrocodone-Acetaminophen41 claims
  5. Prednisone40 claims
  6. Cephalexin32 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: $14.41

1 payment: food and beverage; the largest payer was Genentech USA, Inc. The 489 providers of this specialty with any payment received $337.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Warren$14.41
  2. Specialty average$337.59

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Mclaren Hospital GroupLansing, MI
  2. Mclaren Medical GroupLansing, MI

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

Joseph L. Warren among 361 emergency medical services (emergency medicine) physician records in Michigan

Joseph L. Warren, D.O. is one of 361 emergency medical services (emergency medicine) physician records with a practice address in Michigan. 62% 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, 13% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated2001 · median 1997 among the 148 with a school on file
  • Record last updated2007 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in Michigan

There are 361 emergency medical services (emergency medicine) physician records in Michigan.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Angel Chudler, D.O.Dearborn, MI 481241609854280
  2. Mitchell Goldman, M.D.Dearborn, MI 481241982682449
  3. Marwan Jaber, M.D.Dearborn, MI 481241861470346
  4. Joyce Blazejewski, M.D.Dearborn, MI 481261508844200
  5. Neal Little, M.D.Chelsea, MI 481181346278371
  6. Patrick Munson, MDChelsea, MI 481181952358244
  7. Barry Nemon, MDChelsea, MI 481181427091909
  8. Susan Sullivan, MDChelsea, MI 481181831136944

Common questions

What is Joseph L. Warren, D.O.'s NPI number?

Joseph L. Warren, D.O.'s National Provider Identifier (NPI) is 1104805944, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joseph L. Warren, D.O. located?

The NPPES record lists a practice address at 18101 Oakwood Blvd, Dearborn, MI, 48124. Phone: (313) 593-7000. Providers update this record themselves, so call before visiting.

How can I verify Joseph L. Warren, D.O.'s license?

NPPES lists Michigan license number 5101015058, 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 Joseph L. Warren, D.O. prescribe under Medicare Part D?

In 2024, Joseph L. Warren, D.O. had 468 Medicare Part D claims for 271 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.