NPPES file of Aug 9, 2026

Horst H. Griesser, MD

Emergency Medicine Physician · Detroit, MI

Horst H. Griesser, MD is an emergency medicine physician with a practice address in Detroit, Michigan, and NPI 1336158849, issued on Aug 5, 2006. Check the license (Michigan 4301060251, 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
1336158849
Name
Horst H. Griesser
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
4301060251 MI
Self-reported in NPPES; status is on the state search
Practice location
4646 John R St, Detroit, MI 48201
Phone
(313) 576-3724
Enumerated
Aug 5, 2006
Record last updated
Jul 16, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080905000501); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1992
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 4646 John R St

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

  1. Eden AbapoMedical-Surgical Registered Nurse1558083972
  2. Priseval-Henry AbapoAdministrator Registered Nurse1417685116
  3. Fatima AbbasPharmacist1811513237
  4. Syed Abbas, PHARM D.Pharmacist1871504563
  5. Jamal Abdellateef, RNAdult Psychiatric/Mental Health Registered Nurse1811624349
  6. Michelle Abela, PHDClinical Psychologist1710187661

Verify Horst H. Griesser 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 4301060251
    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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2.1 times the Medicare Part D claims of the average emergency medicine physician in 2024

471 Medicare Part D claims for 245 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Horst Griesser471
  2. Specialty average226

Most prescribed

  1. Methylprednisolone60 claims
  2. Azithromycin51 claims
  3. Cefdinir38 claims
  4. Cephalexin24 claims
  5. Doxycycline Hyclate21 claims
  6. Hydrocodone-Acetaminophen20 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: $134.12

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Horst Griesser$134.12
  2. Specialty average$953.79

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. Nextcare Michigan Providers PLLCAnn Arbor, MI
  2. Specialty Medical Center IncDearborn, MI

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

Horst H. Griesser among 3,083 emergency medicine physician records in Michigan

Horst H. Griesser, MD 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 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 77% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1992 · 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).

451 emergency medicine physician records list a practice address in Detroit

They are 451 of the 19,832 NPPES records with a practice address in Detroit, and 3,083 emergency medicine physician records in Michigan.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Susan Corrion, M.D.Detroit, MI 482011982664728
  2. Alvan CruzDetroit, MI 482011114987187
  3. Alice Dea, M.D.Detroit, MI 482011073573366
  4. Matthew Hedge, M.D.Detroit, MI 482011972562171
  5. Jeffrey Janowicz, M.D.Detroit, MI 482011861451668
  6. Kerin Jones, M.D.Detroit, MI 482011750341954
  7. Christopher Kennedy, M.D.Detroit, MI 482011982665303
  8. Anthony Lagina, M.D.Detroit, MI 482011245209410

Common questions

What is Horst H. Griesser, MD's NPI number?

Horst H. Griesser, MD's National Provider Identifier (NPI) is 1336158849, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Horst H. Griesser, MD located?

The NPPES record lists a practice address at 4646 John R St, Detroit, MI, 48201. Phone: (313) 576-3724. Providers update this record themselves, so call before visiting.

How can I verify Horst H. Griesser, MD's license?

NPPES lists Michigan license number 4301060251, 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 Horst H. Griesser, MD prescribe under Medicare Part D?

In 2024, Horst H. Griesser, MD had 471 Medicare Part D claims for 245 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.