Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jason Leo Maslow, PA

Physician Assistant in Herndon, VA · enumerated 2006.

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

National Provider Identifier

1285797100

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Registry record

Entity type Individual (Type 1)

Name Jason Leo Maslow

Credential PA

Sex Male

Practice address 13350 Franklin Farm Rd, Ste 220, Herndon, VA, 20171

Phone (703) 810-5204

Fax (703) 810-5411

Enumeration date Dec 19, 2006

Last updated in NPPES Mar 31, 2021

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0010-00591 (NC) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0110004680 (VA) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Jason Maslow's NPI record?

Cross-check NPI 1285797100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1285797100 active?

Yes, as of the latest NPPES snapshot, NPI 1285797100 is active (record last updated 2021-03-31).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-31.