Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Stephen C Altmin, MD

Individual provider Emergency Medicine Physician · NPI 1609849991

Stephen C Altmin, MD is an Emergency Medicine in Fort Defiance, Arizona. Graduated from Vanderbilt University School of Medicine in 1999, 27 years ago. Practices with Usacs Community Emergency Services of Colorado Inc, a 167-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
27
Trained at
Vanderbilt University School of Medicine
Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Corner Of Route N12 And N7
Fort Defiance, AZ 86504
Phone: (928) 729-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 11600 W 2nd Pl, Lakewood, CO 80228-1527 — (720) 321-4161

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 39829 (CO)

Record details

NPI number1609849991
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 8, 2006
Last updated in NPPESJanuary 13, 2026
Certification dateJanuary 13, 2026
Mailing addressPo Box 649, Fort Defiance, AZ 86504-0649

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Usacs Community Emergency Services Of Colorado Inc. — 167 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Fort Defiance