NPPES file of Aug 9, 2026

Marie C. Gempis, DO

Family Medicine Physician · Laramie, WY

Marie C. Gempis, DO is a family medicine physician with a practice address in Laramie, Wyoming, and NPI 1861450116, issued on May 3, 2006. Check the license on the Wyoming Board of Medicine; 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
1861450116
Name
Marie C. Gempis
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
965 NV
Self-reported in NPPES; status is on the state search
Practice location
204 Mccollum St, Laramie, WY 82070
Phone
(307) 460-9497
Enumerated
May 3, 2006
Record last updated
Oct 22, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(307) 460-9498
Medicaid ID
002018712 NV
Medicare enrollment
Enrolled (PECOS I20121126000002); accepts Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 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 204 Mccollum St

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

  1. Karla Chapman, PA-CSurgical Physician Assistant1093132706
  2. John McPherson, DDSDentist1265596084
  3. Aaron Taff, D.D.S.Dentist1366757940

Verify Marie C. Gempis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWyoming Board of MedicineCheck 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 Wyoming license search

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28% more Medicare Part D claims than the average family medicine physician in 2024

4,527 Medicare Part D claims for 325 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. 112 claims were for opioids.

  1. Marie Gempis4,527
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium347 claims
  2. Losartan Potassium197 claims
  3. Atorvastatin Calcium189 claims
  4. Metformin Hcl148 claims
  5. Simvastatin137 claims
  6. Rosuvastatin Calcium122 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: $5.54

1 payment: food and beverage; the largest payer was Corium, LLC. 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. Marie Gempis$5.54
  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.

Marie C. Gempis among 400 family medicine physician records in Wyoming

Marie C. Gempis, DO is one of 400 family medicine physician records with a practice address in Wyoming. 80% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 55% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1992 · median 2009 among the 229 with a school on file
  • Record last updated2014 · 50% 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 Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 family medicine physician records list a practice address in Laramie

They are 13 of the 1,606 NPPES records with a practice address in Laramie, and 400 family medicine physician records in Wyoming.

The 8 family medicine physician records with the nearest ZIP codes

  1. Katy Hartman, M.D.Laramie, WY 820701588999759
  2. Casey Starks, M.D.Laramie, WY 820701316205677
  3. Annette Vanbaalen, MDLaramie, WY 820701891994703
  4. Kurt Johnson, MDLaramie, WY 820711124005988
  5. Michael Meyer, M.D.Laramie, WY 820711548263700
  6. Daniel Radosevich, MDLaramie, WY 820711437261120
  7. Emma Bjore, M.D.Laramie, WY 820721922441328
  8. Tracey Haas, D.O.Laramie, WY 820721346264561

Common questions

What is Marie C. Gempis, DO's NPI number?

Marie C. Gempis, DO's National Provider Identifier (NPI) is 1861450116, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marie C. Gempis, DO located?

The NPPES record lists a practice address at 204 Mccollum St, Laramie, WY, 82070. Phone: (307) 460-9497. Providers update this record themselves, so call before visiting.

How can I verify Marie C. Gempis, DO's license?

Search the Wyoming Board of Medicine at https://wyomedboard.wyo.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marie C. Gempis, DO prescribe under Medicare Part D?

In 2024, Marie C. Gempis, DO had 4,527 Medicare Part D claims for 325 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.