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 74 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
- Linda Neale, IBCLCLactation Consultant (Non-RN)1912271156
- Terrence Nedbalski, DDSOral and Maxillofacial Surgery (Dentist)1477761062
- Garrett Neff, D.C.Chiropractor1699111625
- Phinehas NegashBehavior Technician1336737451
- Damon NegriEmergency Medicine Physician1124193453
- Annalise NehringBehavior Technician1164196655
- Alyssa Neill, RDNRegistered Dietitian1407223290
- Joanne Neiman, LPCProfessional Counselor1104033752
- Marcia NeimanInterpreter1720883929
- Emily NelsenPharmacist1538044060
- Eric NelsonMental Health Counselor1447640271
- Ewell Nelson, MDNeurological Surgery Physician1881634194
- Lawrence Nelson, M.S.W.Clinical Social Worker1538123245
- Lisa NelsonMental Health Counselor1265814362
- Mary Nelson, PHDNutrition Education Nutritionist1023990546
- Natalie Nelson, AU.D.Audiologist1598242562
- Margaret NemireMental Health Counselor1316336183
- Michael NesgodaRegistered Nurse1295947737
- Timothy Ness, CPSMental Health Counselor1942686399
- Rahwa NetsanetBehavior Technician1043893514
- Sabrina Neu, PSYDClinical Psychologist1124390075
- Travis Neuhaus, PT, DPTPhysical Therapist1972169498
- Mary NeumannMental Health Counselor1417875154
- Jacqueline NeuwirthMarriage & Family Therapist1720955719
- Elizabeth Nevers, L.P.C., L.C.M.F.T.Professional Counselor1306919220
- Joanne Neville, L.AC.Acupuncturist1184682304
- Karen Nevins, PTPhysical Therapist1376834879
- Gretchen NewcombBehavior Technician1669198354
- Joseph Newcomb, DCChiropractor1154916021
- Kathleen Newell, M.T.,Massage Therapist1093941619
- Pamela Newman, LPCMental Health Counselor1851145163
- Marilyn Newsom, M.D.Neurology Physician1013991603
- Megan Newton, MA, LPCProfessional Counselor1316572456
- Virginia Newton, PSY.D.Psychologist1154538817
- Khanhsong NguyenMental Health Counselor1184979486
- Thuong NguyenBehavior Technician1407320112
- David Nichol, MDPsychiatry Physician1689701211
- Margot Nicholls, NONEBehavior Technician1669197034
- Brian Nichols, M.D. PH.D.Ophthalmology Physician1699727172
- Dena Nichols, R.N.Registered Nurse1821363565
- Jon Nichols, M.A. LPCProfessional Counselor1275212052
- Roger Nichols, M.D.Diagnostic Radiology Physician1336114891
- Sara Nichols, PHARMDPharmacist1679176481
- Dia Nicholson, MAMental Health Counselor1962066274
- Sarah Nicholson, LPCCMental Health Counselor1588447023
- Elliette NickelBehavior Technician1740164110
- Amber NicolettiAddiction (Substance Use Disorder) Counselor1376042051
- Katherine NiedergesesMental Health Counselor1205160314
- Danielle Niedermeier-Smith, M.S.W., L.C.S.W.Mental Health Counselor1194946327
- Brian Niehaus, M.D.Psychiatry Physician1043538598
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.