Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Nancye Lynn Sadler, NP

Addiction Medicine (Family Medicine) Physician in Manassas, VA · enumerated 2006 · practices at Manassas Addiction Center LLC.

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

National Provider Identifier

1508818790

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Registry record

Entity type Individual (Type 1)

Name Ms. Nancye Lynn Sadler

Credential NP

Sex Female

Practice address 8859 Sudley Rd Ste 101, Manassas, VA, 20110

Phone (703) 239-3602

Fax (855) 888-8410

Enumeration date May 16, 2006

Last updated in NPPES Jul 6, 2026

Taxonomy & licenses

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 0024165247 (VA) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024165247 (VA) Secondary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
1508818790	Medicaid	VA	-
P00044670	Other	VA	RAILROAD MEDICARE
8951641	Medicaid	VA	-

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 Nancye Sadler's NPI record?

Cross-check NPI 1508818790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1508818790 active?

Yes, as of the latest NPPES snapshot, NPI 1508818790 is active (record last updated 2026-07-06).

Other providers at this practice address

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Manassas Addiction Center LLC Substance Use Disorder Rehabilitation Clinic/Center · Manassas, VA NPI 1225692015 Christopher Hunsberger Family Medicine Physician · Manassas, VA NPI 1801576376

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-06.