NPPES file of Aug 9, 2026

Stephen C. Altmin, MD

Emergency Medicine Physician · Fort Defiance, AZ

Stephen C. Altmin, MD is an emergency medicine physician with a practice address in Fort Defiance, Arizona, and NPI 1609849991, issued on Feb 8, 2006. Check the license on the Arizona Medical Board; 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
1609849991
Name
Stephen C. Altmin
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
39829 CO
Self-reported in NPPES; status is on the state search
Practice location
Corner OF Route N12 And N7, Fort Defiance, AZ 86504
Phone
(928) 729-8000
Enumerated
Feb 8, 2006
Record last updated
Jan 13, 2026
Medicaid IDs
76275329 CO
PENDING NE
Z3293 UT
200389960A KS
Medicare enrollment
Enrolled (PECOS I20040319000856); accepts Medicare assignment
Medical or professional school
Vanderbilt University School Of Medicine, 1999
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 Corner OF Route N12 And N7

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

  1. Moaz Abulfaraj, MDSurgery Physician1861797193
  2. Walter Adam, MDFamily Medicine Physician1053368860
  3. Margaret Adams, ARNPFamily Nurse Practitioner1427455682
  4. Sandra Adkins, DDSDentist1710918131
  5. Elizabeth Agre, PT, DPTPhysical Therapist1891268280
  6. Mohammad Akhavan Heidari, MDSurgery Physician1205041571

Verify Stephen C. Altmin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical BoardCheck 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 Arizona license search

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76% fewer Medicare Part D claims than the average emergency medicine physician in 2024

54 Medicare Part D claims for 45 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Stephen Altmin54
  2. Specialty average226

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 3 group practices

  1. Usacs Community Emergency Services OF Colorado Inc.Arvada, CO
  2. Usacs OF Colorado IncLittleton, CO
  3. Vep Hutchinson Emergency Medical Group LLCGarden City, KS

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

21 emergency medicine physician records list a practice address in Fort Defiance

They are 21 of the 590 NPPES records with a practice address in Fort Defiance, and 1,494 emergency medicine physician records in Arizona.

Other emergency medicine physician records in Arizona

  1. Dimyana Abdelmalek, MDChinle, AZ1194012146
  2. Linda Abernathy, MDTuba City, AZ1386687093
  3. Sameer Aboufadel, DO, MPHTucson, AZ1639063431
  4. Josephine Acuna, M.DTucson, AZ1710325287
  5. Norberto Adame, MDPhoenix, AZ1144276213
  6. Bruce Adams, M.D.Mesa, AZ1801824925
  7. Ryan Adkins, D.O.Chandler, AZ1417483538
  8. Geovar Agbayani, DOKingman, AZ1265016646
  9. Sophia Aguirre, MDPhoenix, AZ1285384859
  10. Murtaza AkhterPhoenix, AZ1093032351

Common questions

What is Stephen C. Altmin, MD's NPI number?

Stephen C. Altmin, MD's National Provider Identifier (NPI) is 1609849991, issued on Feb 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen C. Altmin, MD located?

The NPPES record lists a practice address at Corner OF Route N12 And N7, Fort Defiance, AZ, 86504. Phone: (928) 729-8000. Providers update this record themselves, so call before visiting.

How can I verify Stephen C. Altmin, MD's license?

Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen C. Altmin, MD prescribe under Medicare Part D?

In 2024, Stephen C. Altmin, MD had 54 Medicare Part D claims for 45 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.