What is Allison Ast's NPI number?

Allison Ast's National Provider Identifier (NPI) is 1356640502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Allison Ast's specialty?

Allison Ast is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Allison Ast located?

Allison Ast's practice location on file with NPPES is 15400 Los Gatos Blvd, Los Gatos, CA 95032-2502.

What is Allison Ast's phone number?

The practice phone number listed in the NPPES registry for Allison Ast is (408) 730-6222.

Does Allison Ast accept Medicare?

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

Is Allison Ast's NPI active?

Yes — Allison Ast's NPI (1356640502) is active in the NPPES registry as of the last update on 2022-11-03.

IndividualActiveAccepts Medicare

Allison Ast, M.D.

NPI 1356640502 · Pediatrics Physician · Los Gatos, CA

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

Allison Ast, M.D. is a Pediatrics Physician provider in Los Gatos, CA (NPI 1356640502).

Provider details

NPI number: 1356640502
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: 56442 (TN)

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense C181963 (CA)
Allopathic & Osteopathic Physicians
Pediatric Hematology & Oncology Physician2080P0207XLicense 56442 (TN)
Allopathic & Osteopathic Physicians
Hospitalist Physician208M00000XLicense 56442 (TN)
Allopathic & Osteopathic Physicians

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
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

15400 Los Gatos Blvd

Los Gatos, CA 95032-2502

Phone: (408) 730-6222

Approximate (ZIP-level) locationGet directions

More CA providers

Mailing address

325 Distel Cir

Los Altos, CA 94022-1408

Additional practice locations (2)

8300 Constantin Blvd
Baton Rouge, LA 70809-3489
Phone: (225) 763-6337
Fax: (225) 761-4072
262 Danny Thomas Place
Memphis, TN 38105
Phone: (901) 595-1204
Fax: (901) 595-8548

Enumerated: 2011-03-26
Last updated: 2022-11-03
Certified: 2022-11-03

Frequently asked questions

What is Allison Ast's NPI number?: Allison Ast's National Provider Identifier (NPI) is 1356640502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Allison Ast's specialty?: Allison Ast is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Allison Ast located?: Allison Ast's practice location on file with NPPES is 15400 Los Gatos Blvd, Los Gatos, CA 95032-2502.
What is Allison Ast's phone number?: The practice phone number listed in the NPPES registry for Allison Ast is (408) 730-6222.
Does Allison Ast accept Medicare?: Allison Ast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Allison Ast's NPI active?: Yes — Allison Ast's NPI (1356640502) is active in the NPPES registry as of the last update on 2022-11-03.

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