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

Steven Ater, DO

Individual provider Obstetrics & Gynecology Physician · NPI 1487238853

Steven Ater, DO is an Obstetrics/Gynecology in Phoenix, Arizona. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2021, 5 years ago. Practices with Yuma Regional Medical Center, a 372-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Arizona and Michigan.

Years since qualifying
5
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
AZ, MI
In the registry since
2021
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1441 N 12th St
Phoenix, AZ 85006-2837
Phone: (602) 521-5700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2400 S Avenue A, Yuma, AZ 85364-7127 — (928) 783-3050
  • 1000 Houghton Ave, Saginaw, MI 48602-5303 — (989) 746-7622

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 5151014831 (MI)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 012102 (AZ)

Record details

NPI number1487238853
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 11, 2021
Last updated in NPPESDecember 23, 2025
Certification dateDecember 23, 2025
Mailing address1441 N 12th St, Phoenix, AZ 85006-2837

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2021 (5 years in practice)
Group practice Yuma Regional Medical Center — 372 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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