Thomas James Simon, M.D.
Internal Medicine Physician · Evanston, WY
Thomas James Simon, M.D. is an internal medicine physician with a practice address in Evanston, Wyoming, and NPI 1609883453, issued on Aug 2, 2006. Check the license (Wyoming 3812A, as entered in NPPES) on the Wyoming Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Thomas James Simon
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 3812A WY
Self-reported in NPPES; status is on the state search - Practice location
- 150 Arrowhead Dr, Evanston, WY 82930
- Phone
- (307) 789-0524
- Enumerated
- Aug 2, 2006
- Record last updated
- Jun 3, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (307) 789-6398
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 134 in Wyoming → Look up another NPI →
Verify Thomas James Simon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWyoming Board of Medicine
Search for license 3812ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Thomas James Simon among 134 internal medicine physician records in Wyoming
Thomas James Simon, M.D. is one of 134 internal medicine physician records with a practice address in Wyoming. 73% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2008 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Wyoming
There are 134 internal medicine physician records in Wyoming.
All 134 in Wyoming → Every provider in Evanston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nicole Dyer, M.D.Evanston, WY 829301053499426
- David Segarra, MDEvanston, WY 829301538164413
- Ahmad Bashirimoghaddam, DORock Springs, WY 829011487144457
- Terry Donaldson, MDRock Springs, WY 829011417903709
- Alicia Gray, MDRock Springs, WY 829011063866085
- Israel Stewart, DORock Springs, WY 829011952624314
- Cynthia Archer, MDJackson, WY 830011275629024
- Glenn Burnett, MDJackson, WY 830011467400747
Common questions
What is Thomas James Simon, M.D.'s NPI number?
Thomas James Simon, M.D.'s National Provider Identifier (NPI) is 1609883453, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas James Simon, M.D. located?
The NPPES record lists a practice address at 150 Arrowhead Dr, Evanston, WY, 82930. Phone: (307) 789-0524. Providers update this record themselves, so call before visiting.
How can I verify Thomas James Simon, M.D.'s license?
NPPES lists Wyoming license number 3812A, as entered by the provider. 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 Thomas James Simon, M.D. prescribe under Medicare Part D?
In 2024, Thomas James Simon, M.D. had 11 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.