Benjamin Sieff, MD, PHD
NPI 1902697519 · Psychiatry Physician · Austin, TX
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Sieff, MD, PHD is a Psychiatry Physician provider in Austin, TX (NPI 1902697519).
Provider details
- NPI number
- 1902697519
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- BP10094678 (TX)
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
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2025-05-14
- Last updated
- 2025-05-14
- Certified
- 2025-05-14
Frequently asked questions
- What is Benjamin Sieff's NPI number?
- Benjamin Sieff's National Provider Identifier (NPI) is 1902697519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Sieff's specialty?
- Benjamin Sieff is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Sieff located?
- Benjamin Sieff's practice location on file with NPPES is 1501 Red River St Fl 2, Austin, TX 78712-1845.
- What is Benjamin Sieff's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Sieff is (512) 495-5555.
- Does Benjamin Sieff accept Medicare?
- Benjamin Sieff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Sieff's NPI active?
- Yes — Benjamin Sieff's NPI (1902697519) is active in the NPPES registry as of the last update on 2025-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.