Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron L Rittgers, MD

Pulmonary Disease Physician in Knoxville, TN · enumerated 2006.

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

National Provider Identifier

1205871423

Verified

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Registry record

Entity type Individual (Type 1)

Name Aaron L Rittgers

Credential MD

Sex Male

Practice address 6473 Kingston Pike, Knoxville, TN, 37919

Phone (865) 588-8831

Fax (865) 588-8841

Enumeration date Jun 19, 2006

Last updated in NPPES May 27, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35297 (TN) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 35297 (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

Where does Aaron Rittgers practice?

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

What is the NPI number for Aaron Rittgers?

The National Provider Identifier (NPI) for Aaron Rittgers is 1205871423, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-27.