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DIAGNOSTIC CENTER
NPI 1679772099
Internal Medicine in Chattanooga, TN

Active since July 16, 2007
2205 MCCALLIE AVE, CHATTANOOGA, TN 37404(423) 698-2435(423) 697-6110 Get Directions Write a Review

NPPES record last updated: December 11, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Diagnostic Center NPPES

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

DIAGNOSTIC CENTER (NPI 1679772099) is a healthcare organization registered as an internal medicine in Chattanooga, Tennessee and active in the NPI registry since July 2007. The organization lists Jeff Rydburg, Vice President, as its authorized official.

NPPES Registry Identity

NPI1679772099
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCHATTANOOGA DIAGNOSTIC ASSOCIATES LLC
Location Address2205 MCCALLIE AVEChattanooga, TN 37404-3230
Mailing Address2205 Mccallie AveChattanooga, TN 37404-3230 · (423) 698-2435 · Fax (423) 697-6110
Phone(423) 698-2435
Fax(423) 697-6110
Organization SubpartYesParent: Hti Hospital Holdings Inc
Authorized OfficialJeff RydburgVice President · (615) 373-7600
Enumeration DateJuly 16, 2007
Last NPPES UpdateDecember 11, 2007
✔ NPI 1679772099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X
Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X
2205 MCCALLIE AVE, Chattanooga, TN 37404
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Other Names 1

Doing Business AsDiagnostic Center

Other Identifiers 3

Medicare PINDG0924
Medicare PIN3370099TN
Medicaid3370099TN

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diagnostic Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

30

Medicare enrollment records show 30 clinicians reassign Medicare billing to Diagnostic Center, which bills Medicare for the services they deliver. Of these, 12 practice at this address and 28 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 8

Nurse Practitioner14
Orthopedic Surgery9
Psychiatry2
Cardiac Surgery1
Cardiovascular Disease (Cardiology)1
Neurosurgery1
Physical Medicine and Rehabilitation1
Thoracic Surgery1

Nearest to this location (20)

See all 30
Candace Davis, APRN
Nurse Practitioner
NPI 1619595147
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 698-2435
✔ PECOSSame address
Marissa Hensley
Nurse Practitioner
NPI 1235887340
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 698-2435
✔ PECOSSame address
Stephen Martin, MD
Cardiac Surgery
NPI 1699762146
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 698-2435
✔ PECOS✔ Accepts MedicareSame address
Jennifer Mirza, D.O.
Cardiovascular Disease (Cardiology)
NPI 1659564474
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 508-6733
✔ PECOS✔ Accepts MedicareSame address
Christopher Pankiw, MD
Orthopedic Surgery
NPI 1558667089
2205 MCCALLIE AVE STE 102
Chattanooga, TN 37404
(423) 493-5220
✔ PECOS✔ Accepts MedicareSame address
Jared Penner
Nurse Practitioner
NPI 1235817529
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 698-2435
✔ PECOSSame address
Cari Powell, MSN, FNP-BC
Nurse Practitioner
NPI 1093347635
2205 MCCALLIE AVE STE 102
Chattanooga, TN 37404
(423) 493-5220
✔ PECOS✔ Accepts MedicareSame address
Martin Redish, MD
Orthopedic Surgery
NPI 1922096387
2205 MCCALLIE AVE SUITE 102
Chattanooga, TN 37404
(423) 493-5220
✔ PECOS✔ Accepts MedicareSame address
Noah Schussler
Psychiatry
NPI 1740716265
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 499-2300
✔ PECOS✔ Accepts MedicareSame address
J.Tyler Tucker, DO
Orthopedic Surgery
NPI 1285929703
2205 MCCALLIE AVE STE 102
Chattanooga, TN 37404
(423) 493-5220
✔ PECOS✔ Accepts MedicareSame address
David Wiles, MD
Neurosurgery
NPI 1851338628
2205 MCCALLIE AVE STE 310
Chattanooga, TN 37404
(423) 459-9800
✔ PECOS✔ Accepts MedicareSame address
Angelia Winton, FNP
Nurse Practitioner
NPI 1023345352
2205 MCCALLIE AVE
Chattanooga, TN 37404
(423) 698-2435
✔ PECOS✔ Accepts MedicareSame address
Cynthia Cross, APN
Nurse Practitioner
NPI 1184120677
2341 MCCALLIE AVE STE 403
Chattanooga, TN 37404
(423) 698-2435
✔ PECOS✔ Accepts Medicare0.2 mi
Danielle Phillips, AGACNP
Nurse Practitioner
NPI 1780077438
2341 MCCALLIE AVE STE 403
Chattanooga, TN 37404
(423) 508-3280
✔ PECOS✔ Accepts Medicare0.2 mi
Matthew Bernard, MD
Orthopedic Surgery
NPI 1164632626
281 N LYERLY ST STE 300
Chattanooga, TN 37404
(423) 693-2175
✔ PECOS✔ Accepts Medicare0.2 mi
Matthew Higgins, M.D.
Orthopedic Surgery
NPI 1629205752
979 E 3RD ST SUITE C-430
Chattanooga, TN 37403
(423) 778-4900
✔ PECOS✔ Accepts Medicare1.4 mi
Kristopher Sanders, M.D.
Orthopedic Surgery
NPI 1730405531
979 E 3RD ST SUITE C-430
Chattanooga, TN 37403
(423) 778-4900
✔ PECOS✔ Accepts Medicare1.4 mi
Kelsey Carpenter, APN
Nurse Practitioner
NPI 1346803756
1510 GUNBARREL RD STE 120
Chattanooga, TN 37421
(678) 707-2657
✔ PECOS✔ Accepts Medicare6.3 mi
Graham Albert, MD
Orthopedic Surgery
NPI 1659834083
1736 GUNBARREL RD
Chattanooga, TN 37421
(423) 756-6623
✔ PECOS✔ Accepts Medicare6.3 mi
Alexander Roberts, M.D.
Physical Medicine and Rehabilitation
NPI 1205157591
1736 GUNBARREL RD
Chattanooga, TN 37421
(423) 756-6623
✔ PECOS✔ Accepts Medicare6.3 mi
See all 30 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Chattanooga Diagnostic Associates LLC's NPI number?

The NPI number for Chattanooga Diagnostic Associates LLC is 1679772099. It was assigned to this organization in the NPPES registry on July 16, 2007. The provider is doing business as Diagnostic Center.

Where is Chattanooga Diagnostic Associates LLC located?

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

What is Chattanooga Diagnostic Associates LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Chattanooga Diagnostic Associates LLC enrolled in Medicare?

Yes. Chattanooga Diagnostic Associates LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Chattanooga Diagnostic Associates LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 30 clinicians in 8 Medicare specialties reassign their Medicare billing to Chattanooga Diagnostic Associates LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (14), Orthopedic Surgery (9) and Psychiatry (2). Of these, 12 practice at this address and 28 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Chattanooga Diagnostic Associates LLC accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list Chattanooga Diagnostic Associates LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Chattanooga Diagnostic Associates LLC was last updated on December 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.