NPPES file of Aug 9, 2026

John Michael Sadaj, M.D.

Internal Medicine Physician · Nampa, ID

John Michael Sadaj, M.D. is an internal medicine physician with a practice address in Nampa, Idaho, and NPI 1407846140, issued on Oct 25, 2005. Check the license (Idaho M8703, as entered in NPPES) on the Idaho Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407846140
Name
John Michael Sadaj
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
M8703 ID
Self-reported in NPPES; status is on the state search
Practice location
215 E Hawaii Ave, Nampa, ID 83686
Phone
(208) 463-3000
Enumerated
Oct 25, 2005
Record last updated
May 11, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(208) 463-3044
Medicaid ID
806441300 ID
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 453 in Idaho → Look up another NPI →

Also registered at 215 E Hawaii Ave

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

  1. Brian Affleck, MDOtolaryngology Physician1386633824
  2. Richard Aguilar, M.D.Pediatrics Physician1932198967
  3. Richard Ballantyne, DOSurgery Physician1174745582
  4. Sol Bockelie, MDFamily Medicine Physician1275279192
  5. Michael Chenore, MDFamily Medicine Physician1225028632
  6. Michael Dee, M.D.Internal Medicine Physician1053302182

Verify John Michael Sadaj in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIdaho Board of Medicine
    Search for license M8703    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
Open the Idaho license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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John Michael Sadaj among 453 internal medicine physician records in Idaho

John Michael Sadaj, M.D. 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 not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 96% newer
  • In a Medicare fileNo · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2016 · 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).

21 internal medicine physician records list a practice address in Nampa

They are 21 of the 2,005 NPPES records with a practice address in Nampa, and 453 internal medicine physician records in Idaho. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 453 in Idaho → Every provider in Nampa → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Chris BlaineNampa, ID 836861952930109
  2. Michael Dee, M.D.Nampa, ID 836861053302182
  3. James Dzur, MDNampa, ID 836861194715177
  4. Patrice Hirning, M.D.Nampa, ID 836861770580078
  5. Jesse Keeler, MDNampa, ID 836861902302425
  6. James McCabe, MDNampa, ID 836861265448476
  7. Randell Page, D.O.Nampa, ID 836861750370771
  8. Stanley Stringam, M.DNampa, ID 836861902896913

Common questions

What is John Michael Sadaj, M.D.'s NPI number?

John Michael Sadaj, M.D.'s National Provider Identifier (NPI) is 1407846140, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Michael Sadaj, M.D. located?

The NPPES record lists a practice address at 215 E Hawaii Ave, Nampa, ID, 83686. Phone: (208) 463-3000. Providers update this record themselves, so call before visiting.

How can I verify John Michael Sadaj, M.D.'s license?

NPPES lists Idaho license number M8703, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.