Lief Fenno, M.D.
NPI 1710349311 · Psychiatry Physician · Austin, TX
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lief Fenno, M.D. is a Psychiatry Physician provider in Austin, TX (NPI 1710349311).
Provider details
- NPI number
- 1710349311
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A151030 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
10 yrs 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
- 2016-03-23
- Last updated
- 2022-02-19
- Certified
- 2022-02-19
Frequently asked questions
- What is Lief Fenno's NPI number?
- Lief Fenno's National Provider Identifier (NPI) is 1710349311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lief Fenno's specialty?
- Lief Fenno is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Lief Fenno located?
- Lief Fenno's practice location on file with NPPES is 1601 Trinity Street, Bldg. B, Austin, TX 78712-1419.
- What is Lief Fenno's phone number?
- The practice phone number listed in the NPPES registry for Lief Fenno is (833) 882-2737.
- Does Lief Fenno accept Medicare?
- Lief Fenno is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lief Fenno's NPI active?
- Yes — Lief Fenno's NPI (1710349311) is active in the NPPES registry as of the last update on 2022-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.