NPPES file of Aug 9, 2026

Heather Kristine Thomasclark

Family Nurse Practitioner · Kalispell, MT

Heather Kristine Thomasclark is a family nurse practitioner with a practice address in Kalispell, Montana, and NPI 1083670285, issued on Apr 25, 2006. Check the license (Montana 47021, as entered in NPPES) with the Montana board that licenses this profession; 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
1083670285
Name
Heather Kristine Thomasclark
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
47021 MT
732 HI
Self-reported in NPPES; status is on the state search
Practice location
343 Sunnyview LN, Kalispell, MT 59901
Phone
(406) 752-1790
Enumerated
Apr 25, 2006
Record last updated
Nov 27, 2023
Fax
(406) 756-3529
Medicare enrollment
Enrolled (PECOS I20130129000643); accepts Medicare assignment
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 343 Sunnyview LN

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

  1. Mary De Souza, MSP ANPAdult Health Nurse Practitioner1700972742
  2. Jeffrey Eshleman, M.D.Radiation Oncology Physician1770561433
  3. Justin Linam, M.D.Radiation Oncology Physician1750727152
  4. Mallory Pursley, ARNPFamily Nurse Practitioner1508273590
  5. Gordon Stillie, D.O.Radiation Oncology Physician1316993082

Verify Heather Kristine Thomasclark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 47021    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
Find the Montana license search

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44% more Medicare Part D claims than the average family nurse practitioner in 2024

1,874 Medicare Part D claims for 272 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 59 claims were for opioids.

  1. Heather Thomasclark1,874
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium117 claims
  2. Losartan Potassium72 claims
  3. Sertraline Hcl70 claims
  4. Gabapentin66 claims
  5. Amlodipine Besylate57 claims
  6. Atorvastatin Calcium56 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.

Bills Medicare through one group practice

  1. Glacier Medical AssociatesWhitefish, MT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

73 family nurse practitioner records list a practice address in Kalispell

They are 73 of the 1,650 NPPES records with a practice address in Kalispell, and 815 family nurse practitioner records in Montana.

All 73 in Kalispell → All 815 in Montana → Every provider in Kalispell →

Other family nurse practitioner records in Montana

  1. Ellen Absher, FNP-CBillings, MT1609709997
  2. Lorraine Ackerman, FNPColumbus, MT1457301830
  3. Brooke Adams, APRNWhitefish, MT1790258358
  4. Marybeth Adams, NPBelgrade, MT1093814923
  5. Kara Addison, DNP-CHelena, MT1295090983
  6. Maggie Ahmad, CRNPKalispell, MT1396253704
  7. Betsy Akin, FNPGreat Falls, MT1720525991
  8. Catherine Akin, NPLivingston, MT1124738166
  9. Patricia Alderson, FNPHavre, MT1831647619
  10. Jacquelyn Alexander, FNPWhitefish, MT1427579473

Common questions

What is Heather Kristine Thomasclark's NPI number?

Heather Kristine Thomasclark's National Provider Identifier (NPI) is 1083670285, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heather Kristine Thomasclark located?

The NPPES record lists a practice address at 343 Sunnyview LN, Kalispell, MT, 59901. Phone: (406) 752-1790. Providers update this record themselves, so call before visiting.

How can I verify Heather Kristine Thomasclark's license?

NPPES lists Montana license number 47021, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

How much does Heather Kristine Thomasclark prescribe under Medicare Part D?

In 2024, Heather Kristine Thomasclark had 1,874 Medicare Part D claims for 272 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.