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

Where this city sits in the corpus

Groton ranks 33rd among 198 Connecticut cities by CMS provider count, holding 0.9% of the state's NPIs, led by Independent Duty Corpsman.

724
NPPES providers in city
33rd
of 198 CT cities
0.9%
of Connecticut providers
36.3%
in top 3 specialties

Groton ranks #1 of 10 Connecticut cities for Independent Duty Corpsman.

Where Groton ranks among Connecticut cities

Provider count vs every Connecticut city in CMS NPPES (198 cities)

724 Top 17% higher than 83% of 198 cities

0–100: 99 cities (50%). Below this entry. 100–200: 25 cities (13%). Below this entry. 200–300: 15 cities (8%). Below this entry. 300–400: 7 cities (4%). Below this entry. 400–500: 10 cities (5%). Below this entry. 500–600: 4 cities (2%). Below this entry. 600–700: 4 cities (2%). Below this entry. 700–800: 6 cities (3%). This entry sits in this band. 800+: 28 cities (14%). Above this entry. This city 0 800+ Connecticut cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Groton

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Independent Duty Corpsman is the largest specialty (179 providers, 24.7% of the city), followed by Clinical Social Worker.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Groton has more, and fewer, of than Connecticut average

Each multiple is this city's share of a specialty divided by that specialty's average share across Connecticut , Groton over-indexes independent duty corpsman at 101.6× the state average and under-indexes mental health counselor at 0.48×. This reflects local practice structure, not care quality.

More common here than Connecticut average

Less common here than Connecticut average

How to read this directory & data limitations

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. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

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.

Of Connecticut's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Groton practice address, a coverage gap Groton patients typically fill by traveling to a larger nearby hub.

For Groton patients, this directory is most useful as a starting shortlist. 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; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

Which specialties are most common in Groton

# Specialty Providers% of city
1 Independent Duty Corpsman 179 24.7%
2 Clinical Social Worker 43 5.9%
3 Pharmacist 41 5.7%
4 Physical Therapist 39 5.4%
5 Marriage & Family Therapist 29 4.0%
6 General Practice Dentistry 24 3.3%
7 Family Nurse Practitioner 20 2.8%
8 Occupational Therapist 19 2.6%
9 Chiropractor 18 2.5%
10 Dentist 17 2.3%
11 Family Medicine Physician 14 1.9%
12 Optician 13 1.8%
13 Behavior Technician 13 1.8%
14 Speech-Language Pathologist 12 1.7%
15 Professional Counselor 12 1.7%

Healthcare Providers (Page 15)

Name
Marcus Williams
Behavior Technician
Mia Williams, PA
Physician Assistant
Matthew Wilson
Independent Duty Corpsman
Rebecca Wittkopp
Physical Therapist
Jessica Wolber, MSW
Clinical Social Worker
Meghan Wolf, HEALTH SERVICES TECH
Military Health Care Provider
James Wollschlager, DDS
General Practice Dentistry
Robert Wollschlager, DDS
General Practice Dentistry
Heather Wood, PH.D.
Psychologist
Ann Wratchford, PMHNP-BC
Registered Nurse
David Wright, IDC
Independent Duty Corpsman
Sarah Wynne
Doula
Ismail Yahyazade, MD
Psychiatry Physician
Fred Yeo, MD
Internal Medicine Physician
Enny Yoo, PHARM D
Pharmacist
Winston Young, DDS
Dentist
Pablo Yuguero, SUB IDC
Other Specialist/Technologist
Jessica Yung
Pharmacist
Erica Zeller-Buitrago, BA
Professional Counselor
Kyle Zeppieri, DC
Chiropractor
Huan Zhang
Acupuncturist
Ziang Zhu
Physical Therapist
Richard Zimmerman, PT
Physical Therapist
John Zolan, M.D.
Specialist

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.
Related guides

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.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.