Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sharon N Chastain, MD

Psychiatry Physician in Maryville, TN · enumerated 2006.

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

National Provider Identifier

1033299102

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Registry record

Entity type Individual (Type 1)

Name Sharon N Chastain

Credential MD

Sex Female

Practice address 1704 E Broadway Ave, Maryville, TN, 37804

Phone (865) 637-9711

Enumeration date Oct 16, 2006

Last updated in NPPES Mar 1, 2024

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD21777 (TN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
Q022549	Medicaid	TN	-

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

What is the NPI number for Sharon Chastain?

The National Provider Identifier (NPI) for Sharon Chastain is 1033299102, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sharon Chastain practice?

The practice location on file with NPPES is in Maryville, TN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-01.