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 90 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
- Shayan Santicola, L. AC.Acupuncturist1780870162
- Timothy Santner, LMTMassage Therapist1750945127
- Austin Santos Haynes, LMT, NMTMassage Therapist1972335230
- Melisa Sanzone, LPCProfessional Counselor1942543905
- Holly Saracco, PA-CPhysician Assistant1114243979
- Billie SasakiMental Health Counselor1528634607
- Randall Sato, M.D.Emergency Medicine Physician1982681854
- Tamra Sattler, MFT, PHDMarriage & Family Therapist1194018044
- Neena Satyanarayan, M.D.Anesthesiology Physician1609165638
- Rachel SaucedaBehavior Technician1205756418
- Mary Saunders, L.AC.Acupuncturist1598728388
- Andrew SavageBehavior Technician1174085187
- Katherine Savage, RDHDental Hygienist1285054684
- Teri Savoie, LCSWClinical Social Worker1801343603
- Gerald Savory, DDSDentist1518187376
- Riley SawyerPhysician Assistant1982568218
- Jenny Sayavong, NONEBehavior Technician1871175919
- Kimberly Scales, PTPhysical Therapist1144553454
- Benjamin Scallon, M.D.Internal Medicine Physician1376923250
- Joanne Scanlon, MSWSocial Worker1699779306
- Kathryn Scanlon, LCSWClinical Social Worker1497133847
- Lisa Scatena, M.D.Dermatology Physician1861529893
- Christopher SchaefbauerCounselor1518257351
- Hannah Schaefer, LPCMental Health Counselor1275112534
- Lisa Schaewe, MA, LPCMental Health Counselor1497817977
- Jennifer Schafer, DDSDentist1992481493
- Jessica SchafferCounselor1962787887
- Alana SchaffmanMental Health Counselor1972464469
- Eric Schainuck, MFTCMarriage & Family Therapist1811842594
- Erin SchallBehavior Technician1225641202
- Brian Schaning, P.T.Physical Therapist1265691448
- Phyllis Schechtman, LCSWClinical Social Worker1972136687
- Lynn Scheidenhelm, LCSWSocial Worker1114153061
- Leslie Schein, PTPhysical Therapist1598904450
- Michael Schiappa, DDSOral and Maxillofacial Surgery (Dentist)1831777523
- Rachelle Schieffer, M.S.Professional Counselor1275618431
- Catherine Schieve, M.D.Psychiatry Physician1497883839
- Miriam Schiff, LMFTMarriage & Family Therapist1013048651
- Paula Schild, PHDMental Health Counselor1245531136
- Lanning Schiller, PH.D.Clinical Psychologist1114068723
- Don Schilling, M.D.Otolaryngology Physician1881612141
- Layla Schimmel, PSY.D.Clinical Child & Adolescent Psychologist1447800859
- Zachary Schimmoller, RNRegistered Nurse1275480840
- Wolfgang Schlage, MA, LPC, PHDProfessional Counselor1366573008
- Sarah Schlagel, B.A.Mental Health Counselor1891085411
- Ann SchlarbCounselor1780831784
- Stephen SchlatterMental Health Counselor1679238216
- Michael SchlegelEmergency Medicine Physician1740252220
- Michaela Schleinz, OTDOccupational Therapist1427601772
- Lenora SchlosserClinical Social Worker1578126264
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.