NPPES file of Aug 9, 2026

Gregory Stempky, DO

Family Medicine Physician · Spring Lake, MI

Gregory Stempky, DO is a family medicine physician with a practice address in Spring Lake, Michigan, and NPI 1639123557, issued on May 22, 2006. Check the license (Michigan 5101013060, 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
1639123557
Name
Gregory Stempky
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
5101013060 MI
Self-reported in NPPES; status is on the state search
Practice location
601 W Savidge St, Spring Lake, MI 49456
Phone
(231) 672-3100
Enumerated
May 22, 2006
Record last updated
Apr 11, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
5198354 MI
Medicare enrollment
Enrolled (PECOS I20040207000119); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 1996
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 601 W Savidge St

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

  1. Jessica Anderson, FNPNurse Practitioner1003640954
  2. Paul Haight, D.O.Family Medicine Physician1477555621
  3. Megan Hayes, PA-CPhysician Assistant1578764775
  4. Bryan Hunter, NPFamily Nurse Practitioner1154870087
  5. Joshua Kalb, DOInternal Medicine Physician1851741854
  6. Jamie Noorman, P.A.Physician Assistant1386642502

Verify Gregory Stempky 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 5101013060
    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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57% fewer Medicare Part D claims than the average family medicine physician in 2024

1,509 Medicare Part D claims for 71 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 90 claims were for opioids.

  1. Gregory Stempky1,509
  2. Specialty average3,544

Most prescribed

  1. Tamsulosin Hcl51 claims
  2. Metoprolol Succinate48 claims
  3. Levothyroxine Sodium41 claims
  4. Sertraline Hcl41 claims
  5. Allopurinol40 claims
  6. Alprazolam39 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: $448.11

18 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Stempky$448.11
  2. Specialty average$902.55

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

Gregory Stempky among 6,013 family medicine physician records in Michigan

Gregory Stempky, DO is one of 6,013 family medicine physician records with a practice address in Michigan. 75% 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, 56% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1996 · median 2008 among the 3,493 with a school on file
  • Record last updated2018 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 family medicine physician records list a practice address in Spring Lake

They are 5 of the 215 NPPES records with a practice address in Spring Lake, and 6,013 family medicine physician records in Michigan.

The 8 family medicine physician records with the nearest ZIP codes

  1. Paul Haight, D.O.Spring Lake, MI 494561477555621
  2. James Macbride, M.D.Spring Lake, MI 494561598931982
  3. Wesley Schermer, DOSpring Lake, MI 494561043878804
  4. David Sova, D.O.Grand Rapids, MI 494561952359895
  5. David Wilson, M.D.Spring Lake, MI 494561972533396
  6. Steven Lessens, M.D.Shelby, MI 494551457301780
  7. Paul Minnick, DOShelby, MI 494551700982485
  8. April Rosalez, D.O.Shelby, MI 494551255694352

Common questions

What is Gregory Stempky, DO's NPI number?

Gregory Stempky, DO's National Provider Identifier (NPI) is 1639123557, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Stempky, DO located?

The NPPES record lists a practice address at 601 W Savidge St, Spring Lake, MI, 49456. Phone: (231) 672-3100. Providers update this record themselves, so call before visiting.

How can I verify Gregory Stempky, DO's license?

NPPES lists Michigan license number 5101013060, 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 Gregory Stempky, DO prescribe under Medicare Part D?

In 2024, Gregory Stempky, DO had 1,509 Medicare Part D claims for 71 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.