Eric David Thomas, M.D.
Internal Medicine Physician · Helena, MT
Eric David Thomas, M.D. is an internal medicine physician with a practice address in Helena, Montana, and NPI 1528378072, issued on Oct 18, 2010. Check the license (Montana MED-PHYS-LIC-49958, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Eric David Thomas
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MED-PHYS-LIC-49958 MT
M-15839 ID
04-45947 KS
55990 KY
25MA08851700 NJ
and 2 more
Self-reported in NPPES; status is on the state search - Practice location
- 601 Mountain Springs RD, Helena, MT 59602
- Phone
- (908) 625-7887
- Enumerated
- Oct 18, 2010
- Record last updated
- Oct 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20210225000549); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 324 in Montana → Look up another NPI →
Also registered at 601 Mountain Springs RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victoria Thomas, ATCAthletic Trainer1104461631
Verify Eric David Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license MED-PHYS-LIC-49958Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
36 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 67% of claims.
Most prescribed
- Ozempic15 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.
The MIPS final score for 2023 (Medicare payment program): 14.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Glutality Provider Group PASioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric David Thomas among 324 internal medicine physician records in Montana
Eric David Thomas, M.D. is one of 324 internal medicine physician records with a practice address in Montana. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 68% of them.
- NPI issued2010 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2008 · median 2006 among the 191 with a school on file
- Record last updated2025 · 52% 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 internal medicine physician records list a practice address in Helena
They are 16 of the 1,591 NPPES records with a practice address in Helena, and 324 internal medicine physician records in Montana.
All 324 in Montana → Every provider in Helena → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Daniel Hesskamp, MDHelena, MT 596021144221037
- Shari Marx, MDHelena, MT 596021659363786
- Scott Woller, M.D.Ft Harrison, MT 596021508966326
- Faust Alvarez, MDHelena, MT 596011962516070
- Jeannie Brandt, M.D.Helena, MT 596011669531638
- Tracy Dill, MDHelena, MT 596011043311673
- William Fernandez, M.D.Helena, MT 596011104805662
- Andrew Fisher, DOHelena, MT 596011104576867
Common questions
What is Eric David Thomas, M.D.'s NPI number?
Eric David Thomas, M.D.'s National Provider Identifier (NPI) is 1528378072, issued on Oct 18, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Eric David Thomas, M.D. located?
The NPPES record lists a practice address at 601 Mountain Springs RD, Helena, MT, 59602. Phone: (908) 625-7887. Providers update this record themselves, so call before visiting.
How can I verify Eric David Thomas, M.D.'s license?
NPPES lists Montana license number MED-PHYS-LIC-49958, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eric David Thomas, M.D. prescribe under Medicare Part D?
In 2024, Eric David Thomas, M.D. had 36 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Eric David Thomas, M.D.'s MIPS final score?
The 2023 MIPS final score is 14.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.