Peter Alperin, M.D.
NPI 1578532370 · Internal Medicine Physician · Austin, TX
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Alperin, M.D. is a Internal Medicine Physician provider in Austin, TX (NPI 1578532370).
Provider details
- NPI number
- 1578532370
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A60048 (CA)
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
20 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
- 2006-03-15
- Last updated
- 2023-12-08
- Certified
- 2023-12-08
Frequently asked questions
- What is Peter Alperin's NPI number?
- Peter Alperin's National Provider Identifier (NPI) is 1578532370, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Alperin's specialty?
- Peter Alperin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Alperin located?
- Peter Alperin's practice location on file with NPPES is 1601 Trinity St Stop Z0900, Austin, TX 78712-1765.
- What is Peter Alperin's phone number?
- The practice phone number listed in the NPPES registry for Peter Alperin is (512) 495-5139.
- Does Peter Alperin accept Medicare?
- Peter Alperin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Alperin's NPI active?
- Yes — Peter Alperin's NPI (1578532370) is active in the NPPES registry as of the last update on 2023-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.