Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Katherine Lynn Selby, APRN

Family Nurse Practitioner in Edgewater, MD · enumerated 2012 · practices at Andrew T. Gergely, M.D.,L.C.C..

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

National Provider Identifier

1538403514

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Registry record

Entity type Individual (Type 1)

Name Mrs. Katherine Lynn Selby

Credential APRN

Sex Female

Practice address 137 Mitchells Chance Rd, Edgewater, MD, 21037

Phone (410) 955-5000

Enumeration date Nov 15, 2012

Last updated in NPPES Nov 20, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AC006945 (MD) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 3007745 (KY) Secondary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
143386	Other	KY	SIHO - NCMA
7100227850	Medicaid	KY	-
50044934	Other	KY	PASSPORT - NCMA
201130600	Medicaid	IN	-
000000797018	Other	KY	ANTHEM - NCMA

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 Katherine Selby's NPI record?

Cross-check NPI 1538403514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538403514 active?

Yes, as of the latest NPPES snapshot, NPI 1538403514 is active (record last updated 2024-11-20).

Other providers at this practice address

Browse all →

Ellen Mcinerney Internal Medicine Physician · Edgewater, MD NPI 1235176157 Jaime Taylor Medical Physician Assistant · Edgewater, MD NPI 1396855573 Arthur Hansman Family Medicine Physician · Edgewater, MD NPI 1356445670 Maryann Boyle Clinical Social Worker · Edgewater, MD NPI 1407044969 Joanne Hockman Clinical Social Worker · Edgewater, MD NPI 1104066786 Courtney Bianchi Clinical Social Worker · Edgewater, MD NPI 1831416759 Andrew T. Gergely, M.D.,L.C.C. Professional Counselor · Edgewater, MD NPI 1326585076

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-20.