Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Zachary A. Hammons, MD

Psychiatry Physician in Johnson City, TN · enumerated 2008 · practices at Catalyst Health Solutions,LLC.

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

National Provider Identifier

1073779799

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Registry record

Entity type Individual (Type 1)

Name Dr. Zachary A. Hammons

Credential MD

Sex Male

Practice address 1018 Chase Dr, Johnson City, TN, 37604

Phone (423) 282-3379

Fax (423) 430-6227

Enumeration date Aug 1, 2008

Last updated in NPPES Sep 17, 2025

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 0101246145 (VA) Secondary

2083A0300X Addiction Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 45653 (TN) Secondary

2083A0300X Addiction Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 0101246145 (VA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 45653 (TN) Primary

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

Is NPI 1073779799 active?

Yes, as of the latest NPPES snapshot, NPI 1073779799 is active (record last updated 2025-09-17).

How do I verify Zachary Hammons's NPI record?

Cross-check NPI 1073779799 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-17.