Sierra Treiman, MD
NPI 1558941534 · Obstetrics & Gynecology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sierra Treiman, MD is a Obstetrics & Gynecology Physician provider in Phoenix, AZ (NPI 1558941534).
Provider details
- NPI number
- 1558941534
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 76137 (AZ)
Specialties & taxonomies
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)
- 350 W Thomas RdPhoenix, AZ 85013-4409Phone: (602) 406-4786
- 585 N 500 WProvo, UT 84601-1548Phone: (801) 374-1801Fax: (801) 216-8357
Registry dates
- Enumerated
- 2021-04-13
- Last updated
- 2025-11-10
- Certified
- 2025-11-10
Frequently asked questions
- What is Sierra Treiman's NPI number?
- Sierra Treiman's National Provider Identifier (NPI) is 1558941534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Treiman's specialty?
- Sierra Treiman is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Sierra Treiman located?
- Sierra Treiman's practice location on file with NPPES is 515 E Thomas Rd, Phoenix, AZ 85012-3203.
- What is Sierra Treiman's phone number?
- The practice phone number listed in the NPPES registry for Sierra Treiman is (602) 241-1717.
- Does Sierra Treiman accept Medicare?
- Sierra Treiman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sierra Treiman's NPI active?
- Yes — Sierra Treiman's NPI (1558941534) is active in the NPPES registry as of the last update on 2025-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.