Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Susan B. Gain, APRN-BC, PNP

Nurse Practitioner in Chattanooga, TN · enumerated 2005.

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

National Provider Identifier

1477552347

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Registry record

Entity type Individual (Type 1)

Name Mrs. Susan B. Gain

Credential APRN-BC, PNP

Sex Female

Practice address 910 Blackford Street, Chattanooga, TN, 37403

Phone (423) 778-6476

Fax (423) 778-4232

Enumeration date Jul 21, 2005

Last updated in NPPES Oct 7, 2010

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License ARNP2953602 (FL) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 13768 (TN) Primary

Other identifiers

Identifier	Type	State	Issuer
451755976A	Medicaid	GA	-
306729700	Medicaid	FL	-

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Susan Gain?

Susan Gain is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-07.