2026 data CMS NPPES NUCC Taxonomy

Doctors in Denver, CO

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

24,395
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Mental Health Counselor
Top specialty
1,638 providers
Colorado
State
CO

24,395 healthcare providers across 20 specialties

Denver, Colorado appears in the CMS National Plan and Provider Enumeration System with 24,395 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 Denver - 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 Denver 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 Denver is weighted toward Mental Health Counselor (1,638 clinicians, followed by Clinical Social Worker with 1,526 and Registered Nurse with 1,180). 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 Colorado's population, Denver reports roughly 415 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.

Within Colorado, Denver ranks #1 of 196 cities tracked by provider count, accounting for 16.9% of the state's registered providers.

For Denver 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.

24,395
Providers
20
Specialties
#1
of 196 CO cities
16.9%
of CO providers
415
Per 100K (state)

Which specialties are most common in Denver

Mental Health Counselor 1,638
Clinical Social Worker 1,526
Registered Nurse 1,180
Student in an Organized Health Care Education/Training Program 1,053
Professional Counselor 865
Behavior Technician 766
Physical Therapist 736
Pharmacist 724
Speech-Language Pathologist 693
Internal Medicine Physician 627
Counselor 546
Addiction (Substance Use Disorder) Counselor 530
Physician Assistant 510
Case Manager/Care Coordinator 508
Social Worker 506
Clinical Psychologist 447
Family Nurse Practitioner 430
Occupational Therapist 414
Family Medicine Physician 403
Massage Therapist 314

Healthcare Providers (Page 273)

Name
Neva Martinez Ortega, LPC
Professional Counselor
Sandra Martinez Tenreiro, PMHNP-BC
Medical-Surgical Registered Nurse
Blanca Martinez Walter, LCSW
Clinical Social Worker
Danae Martinez-Alexander
Addiction (Substance Use Disorder) Counselor
Alvaro Martinez-Camacho, MD
Hepatology Physician
Yoana Martinez-Salazar
School Social Worker
Laura Martinezatonina, MT
Massage Therapist
Juan Martinezchavez
Peer Specialist
Elizabeth Martinson, MA
Speech-Language Pathologist
Tiffani Martir
Behavior Technician
Claire Martone, RN
Registered Nurse
Kathy Martone, ED.D.
Psychologist
River Martone, MA, LPC
Counselor
Alexa Martucci, DC
Chiropractor
Angella Martucci, COTA/L
Occupational Therapy Assistant
John Martyny, CIH
Other Specialist/Technologist
Lauren Martys
Student in an Organized Health Care Education/Training Program
Gail Martz, PSY.D.
Psychologist
Gary Martz, M.D.
Psychiatry Physician
Therese Marumoto, M.D.
Psychiatry Physician
Robert Marusko, DDS
Dentist
Grace Marx, M.D.
Infectious Disease Physician
Russell Marx, M.D.
Psychiatry Physician
Kathleen Marzluf, MD
Anesthesiology Physician
Carema Masaud, LPC
Counseling Psychologist
Sarah Mascall, MA, LPC
Professional Counselor
Arit Mascarello, REGISTER NURSE
Medical-Surgical Registered Nurse
Carol Mascarenhas
Marriage & Family Therapist
Nicole Masciarelli
Case Manager/Care Coordinator
Margherita Mascolo, MD
Internal Medicine Physician
Joaquina Mascuch, L.AC
Acupuncturist
Mariel Maseberg, MD
Anatomic Pathology & Clinical Pathology Physician
Ellen Masella
Massage Therapist
Prisca Mashatta
Behavior Technician
Emma Masi, NP
Family Nurse Practitioner
Donald Masias
Pharmacist
Suzanne Masias, CRNA
Certified Registered Nurse Anesthetist
Marilou Masiclat-Behlmaier
Pharmacist
Smriti Maskey
Behavior Technician
Elizabeth Maslow
Nurse Practitioner
Richard Maslow, MD
Family Medicine Physician
Carol Maslyn, NP
Primary Care Nurse Practitioner
Emily Mason
Behavior Analyst
Emily Mason, FNP-C
Family Nurse Practitioner
Kaitlyn Mason
Occupational Therapy Assistant
Katherine Mason, MSW
Social Worker
Katie Mason, M.A., N.C.C.
Mental Health Counselor
Kerri Mason, MD
Emergency Medicine Physician
Natalie Mason
Addiction (Substance Use Disorder) Registered Nurse
Rachel Mason, MD
Obstetrics & Gynecology Physician

Nearby Cities in Colorado

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

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Denver, CO?
There are 24,395 registered healthcare providers in Denver, CO, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Denver?
The most common specialties in Denver are Mental Health Counselor, Clinical Social Worker, Registered Nurse, Student in an Organized Health Care Education/Training Program, Professional Counselor. Mental Health Counselor has the most providers with 1,638.

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.