Doctors and health care providers in Denver, CO
25,068 individual NPPES records list a practice address in Denver, 1st of 193 Colorado cities. The largest group is clinical social worker: 1,836, 7% of the city's records, against 5% across Colorado. Page 71 of 502.
The 8 largest groups in Denver
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Denver in Colorado
- Rank in Colorado1st of 193 cities by records
- Share of the state16.8% of Colorado's records
- Specialties present25 or more taxonomy codes
- Top three groups18.1% of all records
- Clinical Social Worker rank1st of the 10 Colorado cities with the most
Compared with Colorado as a whole, Denver has 1.8× the state's share of psychiatry physician records and 0.39× its share of behavior technician records.
Providers in Denver, alphabetically
- Courtney Cash, RNRegistered Nurse1821946039
- Gabriel CasherClinical Psychologist1053972778
- Barbara Cashman, LPCCProfessional Counselor1881316990
- Margaret Cashman, LSWSocial Worker1033970306
- Faith Casias, R.N.Registered Nurse1932594298
- Michelle Casias, RDHDental Hygienist1346656246
- Rebecca CasiasBehavior Technician1609737741
- Marissa CasillasBehavior Technician1588586606
- Craig Casner, BS, CAC IIIMental Health Counselor1144365842
- Mary CasonProfessional Counselor1871051060
- Nancy Cason, PSYDClinical Psychologist1043369010
- Stacy Cason, CRNACertified Registered Nurse Anesthetist1093857336
- Edmund Casper, M.D.Addiction Medicine (Psychiatry & Neurology) Physician1740248319
- Kelly Casper, AUDAudiologist1487266656
- Kamila Cass, PH.D.Clinical Psychologist1710210331
- Benjamin Cassell, MDGastroenterology Physician1184885790
- Brendan CassidyBehavior Technician1184129843
- Jennifer Cassidy, SWCClinical Social Worker1104709716
- Paige Cassidy, CPM, RMMidwife1609595131
- Sarah CassidyPhysical Therapist1447149042
- Daniel CassoClinical Social Worker1447385554
- Jacie Casson, MSWSchool Counselor1780050153
- Suzanne Cast, LCSWClinical Social Worker1679833347
- Charlene Castaneda, CAC IIAddiction (Substance Use Disorder) Counselor1316421167
- Mike CastaniaMental Health Counselor1407234701
- Rossana CastanonProfessional Counselor1124805809
- Valerie Castanon, M.D.Pediatrics Physician1043741374
- Jessika CastanuelaPharmacist1467299396
- Carly Casteel, PT, DPTPhysical Therapist1992349666
- Teresa Castellano, MS, CGCGenetic Counselor (M.S.)1306870316
- Meagan CastelowClinical Social Worker1104645142
- Henry Caster, PHARMDPharmacist1699396481
- Kari Castiglione, OTPediatric Occupational Therapist1891336202
- Sahra CastillaInterpreter1689531063
- Adryanna CastilloBehavior Technician1568174332
- Jaime Castillo, L.M.TMassage Therapist1518411339
- Janine Castillo, LPCProfessional Counselor1275188120
- Jennifer CastilloPhysical Therapist1316517360
- Luis Castillo, DHDental Hygienist1134055445
- Maureen Castillo, MA, SLP-CCCSpeech-Language Pathologist1194085266
- Yaritza CastilloSocial Worker1942183751
- Yazmin CastilloBehavior Technician1831744077
- Cinthia Castillo MontemayorBehavior Technician1265320154
- Carmen Castillo-OrtizCounselor1598447153
- Yenitza Castillo-Tristani, BACounselor1154995843
- Rebecca Castle-Waller, LCSWClinical Social Worker1427531318
- Robbin CastoObstetrics & Gynecology Physician1538296587
- Michelle CastorMassage Therapist1851810758
- Amanda Castro, LCSWClinical Social Worker1740325331
- Cassio Castro, D.M.D.General Practice Dentistry1689961765
The largest Colorado cities
- Colorado Springs19,771
- Aurora17,400
- Fort Collins6,928
- Boulder5,635
- Lakewood4,944
How to read this directory
Denver, Colorado appears in the CMS National Plan and Provider Enumeration System with 25,068 registered healthcare providers spanning 25 or more 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 2024 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 Clinical Social Worker (1,836 clinicians, followed by Mental Health Counselor with 1,587 and Professional Counselor with 1,126). 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 426.5 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 Denver 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.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Denver, CO?
There are 25,068 registered healthcare providers in Denver, CO, covering 25 or more 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 Clinical Social Worker, Mental Health Counselor, Professional Counselor, Registered Nurse, Behavior Technician. Clinical Social Worker has the most providers with 1,836.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.