1. Home
  2. Directory
  3. Connecticut
  4. Danbury
  5. Radiology
  6. NPI Profile

DANBURY RADIOLOGICAL ASSOCIATES, PC
NPI 1639164106
Radiology - Diagnostic Radiology in Danbury, CT

Active since September 12, 2005
24 HOSPITAL AVE, DANBURY, CT 06810(203) 739-7532 Get Directions Write a Review

NPPES record last updated: May 6, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 6, 2025, Jul 23, 2019 (2 updates tracked since 2019).

About Danbury Radiological Associates, Pc NPPES

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

DANBURY RADIOLOGICAL ASSOCIATES, PC (NPI 1639164106) is a healthcare organization registered as a diagnostic radiology in Danbury, Connecticut and active in the NPI registry since September 2005. The organization maintains a secondary practice location in Danbury and lists Kirt Frederickson, President, as its authorized official.

NPPES Registry Identity

NPI1639164106
Entity TypeOrganization
Primary Taxonomy2085R0202X
Legal Business NameDANBURY RADIOLOGICAL ASSOCIATES, PC
Location Address24 HOSPITAL AVEDanbury, CT 06810
Mailing Address60 Newtown Rd # 45Danbury, CT 06810-6257 · (203) 739-7532 · Fax (203) 796-7667
Phone(203) 739-7532
Organization SubpartNo
Authorized OfficialKirt FredericksonPresident · (203) 426-3002
Enumeration DateSeptember 12, 2005
Last NPPES UpdateMay 6, 20252 updates tracked since enumeration
NPPES CertifiedMay 6, 2025
✔ NPI 1639164106 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
24 HOSPITAL AVE, Danbury, CT 06810
Open in Google Maps ↗

Secondary Practice Location 1

Location 136 Tamarack Ave, PMB 118Danbury, CT 06811-4822 · Phone (203) 739-7532 · Fax (203) 796-7667

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Danbury Radiological Associates, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

39

Medicare enrollment records show 39 clinicians reassign Medicare billing to Danbury Radiological Associates, PC, which bills Medicare for the services they deliver. Of these, 12 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Nearest to this location (20)

See all 39
Paul Mcguire, MD
Diagnostic Radiology
NPI 1437132826
67 SAND PIT RD
Danbury, CT 06810
(203) 797-1770
✔ PECOS✔ Accepts Medicare2.0 mi
Bradford Bottger, M.D.
Diagnostic Radiology
NPI 1922093400
24 HOSPITAL AVE
Danbury, CT 06810
(203) 797-7322
✔ PECOS✔ Accepts Medicare2.8 mi
Francis Flaherty, M.D.
Diagnostic Radiology
NPI 1528056280
24 HOSPITAL AVE
Danbury, CT 06810
(203) 797-7322
✔ PECOS✔ Accepts Medicare2.8 mi
Kirt Frederickson, M.D.
Diagnostic Radiology
NPI 1144218819
24 HOSPITAL AVE
Danbury, CT 06810
(203) 739-7532
✔ PECOS✔ Accepts Medicare2.8 mi
Thorsten Krebs, M.D.
Diagnostic Radiology
NPI 1144215633
24 HOSPITAL AVE
Danbury, CT 06810
(203) 739-7532
✔ PECOS✔ Accepts Medicare2.8 mi
Anna Mah, M.D.
Diagnostic Radiology
NPI 1932194438
24 HOSPITAL AVE
Danbury, CT 06810
(203) 797-7322
✔ PECOS✔ Accepts Medicare2.8 mi
Nirav Patel, MD
Diagnostic Radiology
NPI 1184864100
24 HOSPITAL AVE
Danbury, CT 06810
(203) 744-0421
✔ PECOS2.8 mi
Stuart Sherman, M.D.
Diagnostic Radiology
NPI 1750379434
24 HOSPITAL AVE
Danbury, CT 06810
(203) 739-7532
✔ PECOS✔ Accepts Medicare2.8 mi
Adam Welber, M.D.
Diagnostic Radiology
NPI 1093703779
24 HOSPITAL AVE
Danbury, CT 06810
(203) 797-7322
✔ PECOS✔ Accepts Medicare2.8 mi
Sofiya Greenberg, M.D.
Diagnostic Radiology
NPI 1265750749
3839 DANBURY RD
Brewster, NY 10509
(845) 278-6200
✔ PECOS✔ Accepts Medicare8.8 mi
Gregory Nevsky, M.D.
Diagnostic Radiology
NPI 1891993325
3839 DANBURY RD
Brewster, NY 10509
(845) 278-6200
✔ PECOS✔ Accepts Medicare8.8 mi
Bhawana Rathore, MD
Diagnostic Radiology
NPI 1881859247
2 RIVERVIEW DR # 104
Danbury, CT 06810
(203) 739-7532
✔ PECOS✔ Accepts Medicare10.0 mi
Gregory Russo, MD
Diagnostic Radiology
NPI 1770502361
2909 MAIN ST ROBERT D. RUSSO, M.D. & ASSOCIATES RADIOLOGY, P.C.
Stratford, CT 06614
(203) 683-4570
✔ PECOS✔ Accepts Medicare20 mi
Jaime Geisel, MD
Diagnostic Radiology
NPI 1124209622
34 MAPLE ST
Norwalk, CT 06850
(203) 395-6352
✔ PECOS✔ Accepts Medicare21 mi
Dugho Jin
Diagnostic Radiology
NPI 1659726644
34 MAPLE ST
Norwalk, CT 06850
(203) 852-2000
✔ PECOS✔ Accepts Medicare21 mi
Athena Lantz, MD
Diagnostic Radiology
NPI 1124184981
34 MAPLE ST
Norwalk, CT 06850
(203) 426-3002
✔ PECOS✔ Accepts Medicare21 mi
Allen Currier, M.D.
Diagnostic Radiology
NPI 1760468904
25 COLLINS RD
Bristol, CT 06010
(860) 584-0541
✔ PECOS✔ Accepts Medicare31 mi
Christopher Leary, MD
Diagnostic Radiology
NPI 1710997481
25 COLLINS RD
Bristol, CT 06010
(860) 584-0541
✔ PECOS✔ Accepts Medicare31 mi
Caren Greenstein, M.D.
Diagnostic Radiology
NPI 1811930910
41 E POST RD WHITE PLAINS HOSPITAL
White Plains, NY 10601
(914) 681-2929
✔ PECOS✔ Accepts Medicare33 mi
Alexander Calvert, MD
Diagnostic Radiology
NPI 1053842989
45 READE PL
Poughkeepsie, NY 12601
(845) 454-8500
✔ PECOS✔ Accepts Medicare34 mi
See all 39 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 Danbury Radiological Associates, PC's NPI number?

The NPI number for Danbury Radiological Associates, PC is 1639164106. It was assigned to this organization in the NPPES registry on September 12, 2005.

Where is Danbury Radiological Associates, PC located?

Danbury Radiological Associates, PC is located at 24 Hospital Ave, Danbury, CT 06810. The listed phone number is (203) 739-7532.

What is Danbury Radiological Associates, PC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Danbury Radiological Associates, PC enrolled in Medicare?

Yes. Danbury Radiological Associates, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Danbury Radiological Associates, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 39 clinicians, all in Diagnostic Radiology, reassign their Medicare billing to Danbury Radiological Associates, PC. 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. Of these, 12 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Danbury Radiological Associates, PC was last updated on May 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.