Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Allison Blumenthal, D.O.

Sports Medicine (Orthopaedic Surgery) Physician in Van Nuys, CA · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457733784

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Registry record

Entity type Individual (Type 1)

Name Allison Blumenthal

Credential D.O.

Sex Female

Practice address Van Nuys, CA, 91405

Phone (818) 901-6600

Enumeration date Jun 23, 2015

Last updated in NPPES Nov 2, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 5101021906 (MI) Secondary

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License OP61153581 (WA) Primary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 20A18213 (CA) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Allison Blumenthal's NPI record?

Cross-check NPI 1457733784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457733784 active?

Yes, as of the latest NPPES snapshot, NPI 1457733784 is active (record last updated 2021-11-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-02.