What is Alonzo Rivas's NPI number?

Alonzo Rivas's National Provider Identifier (NPI) is 1689964819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alonzo Rivas's specialty?

Alonzo Rivas is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Alonzo Rivas located?

Alonzo Rivas's practice location on file with NPPES is 2410 E Riverside Dr, Austin, TX 78741-3083.

What is Alonzo Rivas's phone number?

The practice phone number listed in the NPPES registry for Alonzo Rivas is (512) 744-6000.

Does Alonzo Rivas accept Medicare?

Alonzo Rivas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Alonzo Rivas's NPI active?

Yes — Alonzo Rivas's NPI (1689964819) is active in the NPPES registry as of the last update on 2026-03-19.

IndividualActiveAccepts Medicare

Alonzo Rivas, PA

NPI 1689964819 · Physician Assistant · Austin, TX

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Alonzo Rivas, PA is a Physician Assistant provider in Austin, TX (NPI 1689964819).

Provider details

NPI number: 1689964819
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA
Sex: Male
Sole proprietor: No
License: 085008756 (IL)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense PA07012 (TX)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense 085008756 (IL)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense 027617 (NY)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense PA61234695 (WA)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense PA66983 (CA)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000X

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
15 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
9 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

2410 E Riverside Dr

Ste G-3

Austin, TX 78741-3083

Phone: (512) 744-6000

Fax: (512) 448-3776

Street-level locationGet directions

More TX providers

Mailing address

2621 Ridgepoint Dr

Austin, TX 78754-5232

Additional practice locations (8)

415 N Crescent Dr Ste 320
Beverly Hills, CA 90210-6813
Phone: (888) 803-3370
Fax: (888) 803-3331
333 1st St Ste a
San Francisco, CA 94105-2661
Phone: (888) 803-3370
Fax: (888) 803-3331
21660 W Field Pkwy
Deer Park, IL 60010-7265
Phone: (888) 803-3370
Fax: (888) 803-3331
156 William St Rm 303
New York, NY 10038-5307
Phone: (888) 803-3370
Fax: (888) 803-3331
5373 W Alabama St Ste 204
Houston, TX 77056-5923
Phone: (888) 803-3370
Fax: (888) 803-3331
1400 N Coit Rd Ste 302
Mckinney, TX 75071-6656
Phone: (888) 803-3370
Fax: (888) 803-3331
555 Andover Park W Ste 200
Tukwila, WA 98188-3379
Phone: (888) 803-3370
Fax: (888) 803-3331
790 N Milwaukee St Ste 313
Milwaukee, WI 53202-4148

Enumerated: 2011-04-08
Last updated: 2026-03-19
Certified: 2026-03-19

Frequently asked questions

What is Alonzo Rivas's NPI number?: Alonzo Rivas's National Provider Identifier (NPI) is 1689964819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Alonzo Rivas's specialty?: Alonzo Rivas is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Alonzo Rivas located?: Alonzo Rivas's practice location on file with NPPES is 2410 E Riverside Dr, Austin, TX 78741-3083.
What is Alonzo Rivas's phone number?: The practice phone number listed in the NPPES registry for Alonzo Rivas is (512) 744-6000.
Does Alonzo Rivas accept Medicare?: Alonzo Rivas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Alonzo Rivas's NPI active?: Yes — Alonzo Rivas's NPI (1689964819) is active in the NPPES registry as of the last update on 2026-03-19.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.