Doctors and health care providers in Boulder, CO
5,635 individual NPPES records list a practice address in Boulder, 5th of 193 Colorado cities. The largest group is mental health counselor: 1,009, 18% of the city's records, against 6% across Colorado. Page 17 of 113.
The 8 largest groups in Boulder
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Boulder in Colorado
- Rank in Colorado5th of 193 cities by records
- Share of the state3.8% of Colorado's records
- Specialties present25 or more taxonomy codes
- Top three groups29.4% of all records
- Mental Health Counselor rank2nd of the 10 Colorado cities with the most
Compared with Colorado as a whole, Boulder has 3.9× the state's share of acupuncturist records and 0.47× its share of behavior technician records.
Providers in Boulder, alphabetically
- Sarah Carpenter, LPCMental Health Counselor1457003014
- Alfred Carr, CRNACertified Registered Nurse Anesthetist1487657920
- Jennifer Carr, O.D.Optometrist1801867478
- Megan Carr, MAMental Health Counselor1740843598
- Ann Carrico, PT, MPT, C.PED.Physical Therapist1285780361
- Alexandra Carrillo, MA-SLPSpeech-Language Pathologist1063823516
- Bianca CarrilloMental Health Counselor1134523806
- Jennifer Sarito Carroll, L.AC.Acupuncturist1740438381
- Danielle Carron, MSMental Health Counselor1831302595
- Patricia Carruth, PSYD, MSWClinical Psychologist1891894390
- Karen Carten-Orosel, NPObstetrics & Gynecology Physician1679617476
- Dorothy Carter, M.D.Psychiatry Physician1265592281
- Jeffrey Carter, M.D.Internal Medicine Physician1457441032
- John CarterEmergency Medicine Physician1275516726
- Marquis CarterBehavior Analyst1407407042
- Kristin Cartledge, PA-CSurgical Physician Assistant1700434644
- Annemarie Carzoli, MA, LPCProfessional Counselor1528692522
- Lauren Casalino, M.A., L.P.C.Professional Counselor1427370527
- Tracy Casault, D.O.Sports Medicine (Family Medicine) Physician1508912197
- Alexis Cascino, NPWomen's Health Nurse Practitioner1376256081
- Bruce Casey, PH. D.Clinical Psychologist1275662991
- Megan Casey, MS, CACIIIAddiction (Substance Use Disorder) Counselor1093097628
- Sarah CaseyMental Health Counselor1700236577
- Susan CasoProfessional Counselor1336512896
- Margaret Caspari, LPCProfessional Counselor1740796861
- Miranda Caster, MCN, RDNRegistered Dietitian1558167213
- Rafael CastilloSurgical Assistant1225533136
- James CastleSpecialist1629448444
- Erik Castro, MSW, MPH, SWCMental Health Counselor1609635374
- Peter Castro, M.D.Anesthesiology Physician1316986581
- Alexa CataldoCounselor1952682510
- Attilio Catanzano, MDPsychiatry Physician1518139591
- Jennifer Cates, PHD, LMFT, LPCMarriage & Family Therapist1073260543
- Anne Cattarello, L.P.C.Professional Counselor1811207236
- Michael CavaleriPharmacist1558052688
- Kathleen Cebuhar, M.A. LPC, NCCProfessional Counselor1992011274
- Lorene Cecilia, LPCProfessional Counselor1164664918
- Tara Celentano, LPCCMental Health Counselor1528829272
- Ernest CepedaMental Health Counselor1356490874
- Abigail Cerne, LPCCounselor1306661368
- Christina Cesarz, PT, DPTPhysical Therapist1275185712
- Ibrahim Cetindag, M.D.Surgery Physician1447471396
- Monika Chace, P.T.Physical Therapist1497998124
- David Chagala, OMDAcupuncturist1952365801
- Sally Chalfen, PH.D.Clinical Psychologist1184742702
- Angela ChallMental Health Counselor1558668897
- Thomas Chalmers, MDAnesthesiology Physician1407807423
- Christopher Chamberlin, D.D.S.General Practice Dentistry1659433548
- Sarah Chambers, BA, RBTBehavior Technician1942855382
- Ling ChanMental Health Counselor1194019976
The largest Colorado cities
- Denver25,068
- Colorado Springs19,771
- Aurora17,400
- Fort Collins6,928
- Lakewood4,944
How to read this directory
Boulder, Colorado appears in the CMS National Plan and Provider Enumeration System with 5,635 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 Boulder - 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 Boulder 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 Boulder is weighted toward Mental Health Counselor (1,009 clinicians, followed by Professional Counselor with 334 and Clinical Social Worker with 316). 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, Boulder reports roughly 95.9 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 Colorado's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Boulder practice address, a coverage gap Boulder patients typically fill by traveling to a larger nearby hub.
For Boulder 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 Boulder, CO?
There are 5,635 registered healthcare providers in Boulder, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Boulder?
The most common specialties in Boulder are Mental Health Counselor, Professional Counselor, Clinical Social Worker, Physical Therapist, Behavior Technician. Mental Health Counselor has the most providers with 1,009.
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.