NPPES file of Aug 9, 2026

Mark Stephen Neumann, D.O.

General Practice Physician · Lambertville, MI

Mark Stephen Neumann, D.O. is a general practice physician with a practice address in Lambertville, Michigan, and NPI 1831226398, issued on Feb 28, 2007. Check the license (Michigan 5101013724, 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
1831226398
Name
Mark Stephen Neumann
Credential
D.O.
Primary taxonomy
General Practice Physician 208D00000X
License number
5101013724 MI
Self-reported in NPPES; status is on the state search
Practice location
8745 Secor RD, Lambertville, MI 48144
Phone
(419) 787-3883
Enumerated
Feb 28, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Mark Stephen Neumann 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 5101013724
    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

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Most of these Medicare Part D claims are vaccines, 65% of the cost of the top drugs

124 Medicare Part D claims for 37 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.

  1. Mark Neumann124
  2. Specialty average3,030

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Anastrozole32 claims
  2. Testosterone Cypionate27 claims
  3. Shingrix13 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.

Mark Stephen Neumann among 369 general practice physician records in Michigan

Mark Stephen Neumann, D.O. is one of 369 general practice physician records with a practice address in Michigan. 49% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 36% of them.

  • NPI issued2007 · 36% of these records are older, 50% newer
  • In a Medicare fileYes · 49% of these records are
  • In the CMS Doctors and Clinicians fileNo · 27% of these records are
  • Record last updated2007 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in Michigan

There are 369 general practice physician records in Michigan.

The 8 general practice physician records with the nearest ZIP codes

  1. Randy Ayres, MDLivonia, MI 481501205043254
  2. Vanessa AnunobiLivonia, MI 481521013604024
  3. Zongli Chang, MDLivonia, MI 481521598807547
  4. Somnath Chowdhury, M.D.Livonia, MI 481521255656989
  5. Zainulabideen Mahmood, DOLivonia, MI 481521588300438
  6. Ban Mechael, MDLivonia, MI 481521124095666
  7. Joseph Cooper, DOGarden City, MI 481351982345955
  8. Ahmed Elkomy, MDGarden City, MI 481351871118190

Common questions

What is Mark Stephen Neumann, D.O.'s NPI number?

Mark Stephen Neumann, D.O.'s National Provider Identifier (NPI) is 1831226398, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark Stephen Neumann, D.O. located?

The NPPES record lists a practice address at 8745 Secor RD, Lambertville, MI, 48144. Phone: (419) 787-3883. Providers update this record themselves, so call before visiting.

How can I verify Mark Stephen Neumann, D.O.'s license?

NPPES lists Michigan license number 5101013724, 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 Mark Stephen Neumann, D.O. prescribe under Medicare Part D?

In 2024, Mark Stephen Neumann, D.O. had 124 Medicare Part D claims for 37 beneficiaries; the average among general practice physician prescribers was 3,030. 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.