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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Robert George Mynatt, M.D.

Otolaryngology Physician in Hixson, TN · enumerated 2007 · practices at Mark S. Sumida, MD, PC.

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

National Provider Identifier

1891995940

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert George Mynatt
Credential M.D.
Sex Male
Practice address Hixson, TN, 37343
Phone (423) 267-6738
Fax (423) 209-9106
Enumeration date Jul 18, 2007
Last updated in NPPES Nov 6, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 2003015432 (MO) Secondary
207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License MD43601 (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
1508877 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.

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Frequently asked questions

How do I verify Robert Mynatt's NPI record?
Cross-check NPI 1891995940 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1891995940 active?
Yes, as of the latest NPPES snapshot, NPI 1891995940 is active (record last updated 2025-11-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-06.