Mary Geist, MD
Internal Medicine Physician · Boise, ID
Mary Geist, MD is an internal medicine physician with a practice address in Boise, Idaho, and NPI 1649972324, issued on Mar 20, 2023. Check the license (Idaho 4271451, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mary Geist
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 4271451 ID
MRM-2227 ID
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Fort St # 111R, Boise, ID 83702
- Phone
- (208) 422-1314
- Enumerated
- Mar 20, 2023
- Record last updated
- Mar 4, 2026
- Fax
- (208) 422-1388
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 453 in Idaho → Look up another NPI →
Also registered at 500 W Fort St # 111R
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Bird, DOHospitalist Physician1629728282
- Meagan BollInternal Medicine Physician1932801586
- John Bosak, DOInternal Medicine Physician1669231247
- Sophie BrauInternal Medicine Physician1609677848
- David Butler, DOInternal Medicine Physician1811835044
- Justin CloningerInternal Medicine Physician1942148135
Verify Mary Geist in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license 4271451Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
225 Medicare Part D claims for 48 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium31 claims
- Gabapentin12 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.
Mary Geist among 453 internal medicine physician records in Idaho
Mary Geist, MD is one of 453 internal medicine physician records with a practice address in Idaho. 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 2023, is newer than 88% of them.
- NPI issued2023 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2026 · 44% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
217 internal medicine physician records list a practice address in Boise
They are 217 of the 9,467 NPPES records with a practice address in Boise, and 453 internal medicine physician records in Idaho.
All 453 in Idaho → Every provider in Boise → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joann Bischoff, MDBoise, ID 837021174540900
- Alice BlakeBoise, ID 837021508805078
- John Boice, MDBoise, ID 837021316954878
- Tina Esther Bronner, MDBoise, ID 837021760444244
- Clive Cooper, MDBoise, ID 837021962446104
- Ann Cordum, M.D.Boise, ID 837021982653879
- Lisa Inouye, MDBoise, ID 837021376514695
- Lee Kornfield, MDBoise, ID 837021275527186
Common questions
What is Mary Geist, MD's NPI number?
Mary Geist, MD's National Provider Identifier (NPI) is 1649972324, issued on Mar 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mary Geist, MD located?
The NPPES record lists a practice address at 500 W Fort St # 111R, Boise, ID, 83702. Phone: (208) 422-1314. Providers update this record themselves, so call before visiting.
How can I verify Mary Geist, MD's license?
NPPES lists Idaho license number 4271451, 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 Mary Geist, MD prescribe under Medicare Part D?
In 2024, Mary Geist, MD had 225 Medicare Part D claims for 48 beneficiaries; 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.