2026 data CMS NPPES NUCC Taxonomy

Doctors in Boston, MA

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

40,542
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Student in an Organized Health Care Education/Training Program
Top specialty
7,234 providers
Massachusetts
State
MA

Where this city sits in the corpus

Boston ranks 1st among 400 Massachusetts cities by CMS provider count, holding 19% of the state's NPIs, led by Student in an Organized Health Care Education/Training Program.

40,542
NPPES providers in city
1st
of 400 MA cities
19%
of Massachusetts providers
29.7%
in top 3 specialties

Boston ranks #1 of 10 Massachusetts cities for Student in an Organized Health Care Education/Training Program.

Where Boston ranks among Massachusetts cities

Provider count vs every Massachusetts city in CMS NPPES (400 cities)

40,542 Top 1% higher than 99% of 400 cities

0–100: 179 cities (45%). Below this entry. 100–200: 70 cities (18%). Below this entry. 200–300: 33 cities (8%). Below this entry. 300–400: 17 cities (4%). Below this entry. 400–500: 17 cities (4%). Below this entry. 500–600: 13 cities (3%). Below this entry. 600–700: 3 cities (1%). Below this entry. 700–800: 5 cities (1%). Below this entry. 800+: 63 cities (16%). This entry sits in this band. This city 0 800+ Massachusetts 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 Boston

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Student in an Organized Health Care Education/Training Program is the largest specialty (7,234 providers, 17.8% of the city), followed by Internal Medicine Physician.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Boston has more, and fewer, of than Massachusetts average

Each multiple is this city's share of a specialty divided by that specialty's average share across Massachusetts , Boston over-indexes neurology physician at 2.9× the state average and under-indexes mental health counselor at 0.24×. This reflects local practice structure, not care quality.

More common here than Massachusetts average

Less common here than Massachusetts average

How to read this directory & data limitations

Boston, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 40,542 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 Boston - 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 Boston 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 Boston is weighted toward Student in an Organized Health Care Education/Training Program (7,234 clinicians, followed by Internal Medicine Physician with 3,032 and Clinical Social Worker with 1,769). 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 Massachusetts's population, Boston reports roughly 579.1 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 Massachusetts's most common specialties, Counselor is the most prominent one with no provider currently listing a Boston practice address, a coverage gap Boston patients typically fill by traveling to a larger nearby hub.

For Boston 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 Boston

Healthcare Providers (Page 289)

Name
Michelle Gurel, RN
Ambulatory Care Registered Nurse
Sarika Gurnani, MD
Student in an Organized Health Care Education/Training Program
Sarah Gurney, RD LDN
Pediatric Nutrition Registered Dietitian
Stephanie Guro, LICSW
Clinical Social Worker
Mahmut Gurol, M.D.
Neurology Physician
Maria Gurucharri, ED.D.
Clinical Child & Adolescent Psychologist
Michelle Gurvitz, MD
Cardiovascular Disease Physician
Jason Gusdorf
Student in an Organized Health Care Education/Training Program
James Guseh, MD
Internal Medicine Physician
Stephanie Guseh, M.D.
Student in an Organized Health Care Education/Training Program
Andrew Gusev, MD
Student in an Organized Health Care Education/Training Program
Lindsy Gusiora, AGPCNP-BC
Nurse Practitioner
Michaela Gusman, PHD
Student in an Organized Health Care Education/Training Program
Sofya Gusman
Pharmacist
Tanya Gusovsky, LICSW
Clinical Social Worker
Carly Guss, M.D.
Pediatric Adolescent Medicine Physician
Daniel Guss, M.D.
Orthopaedic Surgery Physician
Lauren Guss, LICSW
Clinical Social Worker
Jennifer Gustafson, O.D.
Optometrist
Meredith Gustafson, NP
Acute Care Nurse Practitioner
Rachel Gustafson, LICSW
Clinical Social Worker
Empress Gustave-Fernandez
Behavior Technician
Joseph Gustin, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner
Monica Gustin, ACNPC-AG
Nurse Practitioner
Joshua Gustine
Student in an Organized Health Care Education/Training Program
Roman Gusztak, M.D.
Anesthesiology Physician
Ashleigh Guthrie, ACNP-BC
Acute Care Nurse Practitioner
Karen Guthrie, MSW
Clinical Social Worker
Rachael Guthrie
Mental Health Counselor
Camilo Gutierrez, M.D.
Pediatrics Physician
Catherine Gutierrez, MD
Student in an Organized Health Care Education/Training Program
Erica Gutierrez, PA-C
Physician Assistant
Sydney Gutierrez, PA-C
Physician Assistant
Teresa Gutierrez
Student in an Organized Health Care Education/Training Program
Adina Gutium, MD
Internal Medicine Physician
Erica Gutmann
Speech-Language Pathologist
Cassidy Gutner, PHD
Psychologist
Irene Gutowski, NP
Family Nurse Practitioner
Ann Guttendorf, N.P.
Adult Health Nurse Practitioner
Elizabeth Guttenplan, LICSW
Clinical Social Worker
Carmen Guy
Psychiatric/Mental Health Nurse Practitioner
Richard Guyer, MD
Student in an Organized Health Care Education/Training Program
Genevieve Guyol, MD
Student in an Organized Health Care Education/Training Program
Kevin Guze, DMD
Dentist
Ashlee Guzman
Student in an Organized Health Care Education/Training Program
Carlos Guzman, MD
Anesthesiology Physician
Elvis Guzman, MD
Interventional Pain Medicine Physician
Giovanny Guzman
Student in an Organized Health Care Education/Training Program
Micaurys Guzman
Counselor
Patricia Marie Guzman, MD
Student in an Organized Health Care Education/Training Program

Nearby Cities in Massachusetts

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

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Boston, MA?
There are 40,542 registered healthcare providers in Boston, MA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Boston?
The most common specialties in Boston are Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Clinical Social Worker, Physician Assistant, Pediatrics Physician. Student in an Organized Health Care Education/Training Program has the most providers with 7,234.
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.