Steven Ater, DO
NPI 1487238853 · Obstetrics & Gynecology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Ater, DO is a Obstetrics & Gynecology Physician provider in Phoenix, AZ (NPI 1487238853).
Provider details
- NPI number
- 1487238853
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 012102 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 2400 S Avenue aYuma, AZ 85364-7127Phone: (928) 783-3050
- 1000 Houghton AveSaginaw, MI 48602-5303Phone: (989) 746-7622
Registry dates
- Enumerated
- 2021-05-11
- Last updated
- 2025-12-23
- Certified
- 2025-12-23
Frequently asked questions
- What is Steven Ater's NPI number?
- Steven Ater's National Provider Identifier (NPI) is 1487238853, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Ater's specialty?
- Steven Ater is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Ater located?
- Steven Ater's practice location on file with NPPES is 1441 N 12th St, Phoenix, AZ 85006-2837.
- What is Steven Ater's phone number?
- The practice phone number listed in the NPPES registry for Steven Ater is (602) 521-5700.
- Does Steven Ater accept Medicare?
- Steven Ater is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Ater's NPI active?
- Yes — Steven Ater's NPI (1487238853) is active in the NPPES registry as of the last update on 2025-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.