Gregory T. Trapp, M.D.
Hospitalist Physician · Boise, ID
Gregory T. Trapp, M.D. is a hospitalist physician with a practice address in Boise, Idaho, and NPI 1851407944, issued on Aug 22, 2006. Check the license (Idaho M10440, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Gregory T. Trapp
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- M10440 ID
M-10440 ID
036095931 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1055 N. Curtis RD, Boise, ID 83706
- Phone
- (208) 367-7350
- Enumerated
- Aug 22, 2006
- Record last updated
- Oct 31, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (208) 367-3951
- Medicaid IDs
- 036095931 IL
808163900 ID - Medicare enrollment
- Enrolled (PECOS I20081211000481); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 105 in Idaho → Look up another NPI →
Also registered at 1055 N. Curtis RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Mathews, M.D.Hospitalist Physician1841296902
- Brook Thomson, M.D.Obstetrics & Gynecology Physician1548290141
- Stefani Westerberg, NP-CHospitalist Physician1417256736
Verify Gregory T. Trapp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M10440Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average hospitalist physician in 2024
371 Medicare Part D claims for 106 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 33 claims were for opioids.
Most prescribed
- Eliquis23 claims
- Atorvastatin Calcium20 claims
- Pantoprazole Sodium18 claims
- Clopidogrel16 claims
- Metoprolol Succinate13 claims
- Oxycodone Hcl13 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
- St Lukes Clinic-Treasure Valley LLCBoise, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory T. Trapp among 105 hospitalist physician records in Idaho
Gregory T. Trapp, M.D. is one of 105 hospitalist physician records with a practice address in Idaho. 90% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 72% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated1993 · median 2010 among the 88 with a school on file
- Record last updated2011 · 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 208M00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Idaho
There are 105 hospitalist physician records in Idaho.
All 105 in Idaho → Every provider in Boise → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Lauren Bales, M.D.Boise, ID 837061366435687
- Paula Durst, DOBoise, ID 837061932547338
- Lisa Hunt, MDBoise, ID 837061225066103
- Tanya Krafft, MDBoise, ID 837061356370563
- Carol Le, M.D.Boise, ID 837061518011287
- Kae Leinberger, NP-CBoise, ID 837061811197874
- Katherine Mathews, M.D.Boise, ID 837061841296902
- Lisa Nelson, M.D.Boise, ID 837061194840397
Common questions
What is Gregory T. Trapp, M.D.'s NPI number?
Gregory T. Trapp, M.D.'s National Provider Identifier (NPI) is 1851407944, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory T. Trapp, M.D. located?
The NPPES record lists a practice address at 1055 N. Curtis RD, Boise, ID, 83706. Phone: (208) 367-7350. Providers update this record themselves, so call before visiting.
How can I verify Gregory T. Trapp, M.D.'s license?
NPPES lists Idaho license number M10440, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory T. Trapp, M.D. prescribe under Medicare Part D?
In 2024, Gregory T. Trapp, M.D. had 371 Medicare Part D claims for 106 beneficiaries; the average among hospitalist physician prescribers was 521. 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.