2026 data CMS NPPES NUCC Taxonomy

Doctors in Groton, CT

Active healthcare providers in Groton sourced from the CMS NPPES weekly file — no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

724
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Independent Duty Corpsman
Top specialty
179 providers
Connecticut
State
CT

724 healthcare providers across 20 specialties

Groton, Connecticut appears in the CMS National Plan and Provider Enumeration System with 724 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Groton — physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Groton practice location on file.

The provider mix in Groton is weighted toward Independent Duty Corpsman (179 clinicians, followed by Clinical Social Worker with 43 and Pharmacist with 41). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Connecticut's population, Groton reports roughly 20 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Groton patients, this directory is most useful as a starting shortlist — searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

724
Providers
20
Specialties
20
Per 100K (state)

Which specialties are most common in Groton

Independent Duty Corpsman 179
Clinical Social Worker 43
Pharmacist 41
Physical Therapist 39
Marriage & Family Therapist 29
General Practice Dentistry 24
Family Nurse Practitioner 20
Occupational Therapist 19
Chiropractor 18
Dentist 17
Family Medicine Physician 14
Optician 13
Behavior Technician 13
Speech-Language Pathologist 12
Professional Counselor 12
Physician Assistant 11
Social Worker 11
Mental Health Counselor 11
Psychiatry Physician 8
Pediatrics Physician 8

Healthcare Providers (Page 7)

Name
JOHANNA HOLLIDAY, LPC
Mental Health Counselor
ALYSSA HORTON, PHARM.D
Pharmacist
JOHN HOYOS, DNP, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner
LISA HUGGARD, LCSW
Clinical Social Worker
HEIDI HUGHES, LMT
Health & Wellness Coach
BRENDA HULTGREN, OTR/L
Occupational Therapist
ROMUALDO HUMARANG, IDC
Independent Duty Corpsman
OLIVIA HUNT, PHARMD
Pharmacist
BENJAMIN HUNTER, DDS
Prosthodontics
ARIC HURLEY, IDC
Independent Duty Corpsman
ROBERT HURLEY, M.D.
Occupational Medicine Physician
EDWARD HUTTER, D.C.
Chiropractor
CAITLIN HYDE, PT,DPT
Physical Therapist
SHARON IYPE, DDS
General Practice Dentistry
JULIA JACOBS, M.D.
Psychiatry Physician
SARA ANN JAKUB, LPC
Mental Health Counselor
VANESSA JANEK, RN
Doula
RICHARD JAREMBACK, IDC
Independent Duty Corpsman
MARK JARVIS, HMC
Independent Duty Corpsman
JAN JENS
Pharmacist
JENNIFER JOHNSON, LO
Optician
JOHN JOHNSON, DDS
General Practice Dentistry
MARK JOHNSON, IDC
Independent Duty Corpsman
MEGHANN JOKELA-THOMPSON, PHARMD
Pharmacist
ROBERT JONES, IDC
Independent Duty Corpsman
KELSEY JOSLYN
Clinical Social Worker
ZACHARY JUPIN, PA-C
Medical Physician Assistant
MARC KALLINEN, O.D.
Optometrist
DEAN KANG, PHARM.D.
Pharmacist
LAUREN KAPELL
Physical Therapist
NANCY KASTNER, BS
Pharmacotherapy Pharmacist
DIANE KEARNEY
Pharmacist
WILLIAM KEEFE, M.D.
Specialist
THOMAS KEEMON, RPH
Pharmacist
KATY KELLIHER, PTA
Physical Therapy Assistant
LESLIE KELLY, RN
Registered Nurse
LAJWARD KHAN
Pharmacist
MABROOR KHAN, DMD
Dentist
DANIEL KILHEFNER, SUBIDC
Independent Duty Corpsman
SEAN KIM
General Practice Dentistry
JEREMIAH KING, IDC
Independent Duty Corpsman
MARISSA KING
Clinical Social Worker
MATTHEW KING
Student in an Organized Health Care Education/Training Program
SUSAN KING, MSW
Clinical Social Worker
DALE KINGSLEY, LMFT
Marriage & Family Therapist
JENNIFER KINSHAW
Independent Duty Corpsman
ROBERT KISH, OD
Corneal and Contact Management Optometrist
KELLY KLEIN, N.P.
Gerontology Nurse Practitioner
LISA KLEVENOW-MCGRATH, M.ED.MFT
Marriage & Family Therapist
JEFFREY KLIMCZAK, IDC
Independent Duty Corpsman

Nearby Cities in Connecticut

Other Connecticut cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Groton, CT?
There are 724 registered healthcare providers in Groton, CT, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Groton?
The most common specialties in Groton are Independent Duty Corpsman, Clinical Social Worker, Pharmacist, Physical Therapist, Marriage & Family Therapist. Independent Duty Corpsman has the most providers with 179.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.