Nathan Gillis, DO
Internal Medicine Physician · Boise, ID
Nathan Gillis, DO is an internal medicine physician with a practice address in Boise, Idaho, and NPI 1144699505, issued on Sep 16, 2015. Check the license (Idaho O-1131, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Nathan Gillis
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- O-1131 ID
BP10053699 TX
Self-reported in NPPES; status is on the state search - Practice location
- 190 E Bannock St, Boise, ID 83712
- Phone
- (208) 381-5015
- Enumerated
- Sep 16, 2015
- Record last updated
- May 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180619002859); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 453 in Idaho → Look up another NPI →
Also registered at 190 E Bannock St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aaron Ackerson, ACNPC-AGAcute Care Nurse Practitioner1982329751
- Jarren Adam, DOEmergency Medicine Physician1295484699
- Sariah AdamsRegistered Nurse1801737978
- Grace Adamson, MDFamily Medicine Physician1497246136
- J Thomas Ahlquist, MDEmergency Medical Services (Emergency Medicine) Physician1598703902
- Dawn Aiken, NPFamily Nurse Practitioner1295175313
Verify Nathan Gillis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license O-1131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
281 Medicare Part D claims for 125 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass24 claims
- Atorvastatin Calcium16 claims
- Oxycodone Hcl14 claims
- Eliquis12 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 practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
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).
Nathan Gillis among 453 internal medicine physician records in Idaho
Nathan Gillis, DO 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 2015, is newer than 62% of them.
- NPI issued2015 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2015 · median 2011 among the 254 with a school on file
- Record last updated2020 · 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
- Jennifer Anderson, MDBoise, ID 837121093825903
- Donna Beeson, D.O.Boise, ID 837121689630436
- Peter Cliften, M.D.Boise, ID 837121760473771
- Karen East, MDBoise, ID 837121255380150
- Gabriel Garber, MDBoise, ID 837121588632830
- Erika Lewis, M.D.Boise, ID 837121659320570
- Julie Lyon, M.D.Boise, ID 837121285685891
- Laura McGeorge, MDBoise, ID 837121629029699
Common questions
What is Nathan Gillis, DO's NPI number?
Nathan Gillis, DO's National Provider Identifier (NPI) is 1144699505, issued on Sep 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Gillis, DO located?
The NPPES record lists a practice address at 190 E Bannock St, Boise, ID, 83712. Phone: (208) 381-5015. Providers update this record themselves, so call before visiting.
How can I verify Nathan Gillis, DO's license?
NPPES lists Idaho license number O-1131, 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 Nathan Gillis, DO prescribe under Medicare Part D?
In 2024, Nathan Gillis, DO had 281 Medicare Part D claims for 125 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Nathan Gillis, DO's MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. 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.