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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HOLLY LYNN SEDDON M.D.
NPI 1598707044
Psychiatry & Neurology - Addiction Medicine in Danbury, CT

Active since June 11, 2006
24 HOSPITAL AVE, DANBURY, CT 06810(203) 797-7443 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Holly Lynn Seddon M.d. NPPES

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

HOLLY LYNN SEDDON M.D. (NPI 1598707044) is an individual addiction medicine provider in Danbury, Connecticut, licensed in Connecticut (043673) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1598707044
Entity TypeIndividualFemale
Primary Taxonomy2084A0401X
Provider Legal NameHOLLY LYNN SEDDONCredential: M.D.
Location Address24 HOSPITAL AVEDanbury, CT 06810-6099
Mailing Address24 Hospital AveDanbury, CT 06810-6099 · (203) 797-7443
Phone(203) 797-7443
Sole ProprietorNo
Enumeration DateJune 11, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1598707044 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2084A0401X
License✔ Licensed in CT · 043673
Definition
A doctor of osteopathy board eligible/certified in the field of Psychiatry by the American Osteopathic Board of Neurology and Psychiatry is able to obtain a Certificate of Added Qualifications in the field of Addiction Medicine
24 HOSPITAL AVE, Danbury, CT 06810
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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.

DR. ANDREW CALIGIURI D.O.
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
GARRETT JAFFE
Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7118
DR. SUHANKI RAJAPAKSA M.D
Student in an Organized Health Care Education/Training Program
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-4973
MR. PETER X ZHANG PA-C
Physician Assistant (Surgical)
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
CHRISTIE ALLEN
Nurse Practitioner (Acute Care)
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
DANBURY OFFICE OF PHYSICIAN SERVICES, P.C.
Anesthesiology
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 797-7442
REBECCA E. PIKE M.D.
Internal Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
JACOB BARTEL LOTSTEIN M.D.
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7100

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 Holly Seddon's NPI number?

The NPI number for Holly Seddon is 1598707044. It was assigned to this individual provider in the NPPES registry on June 11, 2006.

Where is Holly Seddon located?

Holly Seddon practices at 24 Hospital Ave, Danbury, CT 06810. The listed phone number is (203) 797-7443.

What is Holly Seddon's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Addiction Medicine, with taxonomy code 2084A0401X.

When was this NPI record last updated?

The NPPES record for Holly Seddon was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.