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DIAGNOSTIC CENTER
NPI 1649269366
Internal Medicine - Pulmonary Disease in Chattanooga, TN

Active since October 14, 2005
2205 MCCALLIE AVE, CHATTANOOGA, TN 37404(423) 698-2435(423) 697-6110 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

About Diagnostic Center NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIAGNOSTIC CENTER (NPI 1649269366) is a healthcare organization registered as a pulmonary disease in Chattanooga, Tennessee and active in the NPI registry since October 2005. The organization lists Mark D Estabrook, Ceo, as its authorized official.

NPPES Registry Identity

NPI1649269366
Entity TypeOrganization
Primary Taxonomy207RP1001X
Legal Business NameDIAGNOSTIC CENTER
Location Address2205 MCCALLIE AVEChattanooga, TN 37404-3323
Mailing Address2205 Mccallie AveChattanooga, TN 37404-3323 · (423) 698-2435 · Fax (423) 697-6110
Phone(423) 698-2435
Fax(423) 697-6110
Organization SubpartNo
Authorized OfficialMark D EstabrookCeo · (423) 698-2435
Enumeration DateOctober 14, 2005
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1649269366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X
Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X
2205 MCCALLIE AVE, Chattanooga, TN 37404
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Other Identifiers 1

Medicaid3706505TN

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. ANGELIA D WINTON FNP
Nurse Practitioner (Psychiatric/Mental Health)
2205 MCCALLIE AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 698-2435
DR. ANDREW B RITTENBERRY M.D.
Specialist
2205 MCCALLIE AVE, STE 102
CHATTANOOGA, TN 37404
Hamilton County (423) 624-6993
CHARLES A CRUMP JR. MD
Internal Medicine
2205 MCCALLIE AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 698-2435
DR. MICHAEL CHRISTIAN ALLAN MD
Internal Medicine (Clinical Cardiac Electrophysiology)
2205 MCCALLIE AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 508-6733
CHATTANOOGA BONE AND JOINT SURGEONS PC
Specialist
2205 MCCALLIE AVE, SUITE 102
CHATTANOOGA, TN 37404
Hamilton County (423) 893-9020
MARK R. BONNELL M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2205 MCCALLIE AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 698-2435
DR. MATTHEW EVERT WIISANEN MD
Internal Medicine (Interventional Cardiology)
2205 MCCALLIE AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 508-6733
JARED SHELDON PENNER
Nurse Practitioner (Psychiatric/Mental Health)
2205 MCCALLIE AVE
CHATTANOOGA, TN 37404
Hamilton County (423) 698-2435

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diagnostic Center's NPI number?

The NPI number for Diagnostic Center is 1649269366. It was assigned to this organization in the NPPES registry on October 14, 2005.

Where is Diagnostic Center located?

Diagnostic Center is located at 2205 Mccallie Ave, Chattanooga, TN 37404. The listed phone number is (423) 698-2435.

What is Diagnostic Center's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

When was this NPI record last updated?

The NPPES record for Diagnostic Center was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.