Doctors and health care providers in Columbia, MD
6,690 individual NPPES records list a practice address in Columbia, 4th of 284 Maryland cities. The largest group is behavior technician: 2,034, 30% of the city's records, against 16% across Maryland. Page 13 of 134.
The 8 largest groups in Columbia
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Columbia in Maryland
- Rank in Maryland4th of 284 cities by records
- Share of the state4.2% of Maryland's records
- Specialties present25 or more taxonomy codes
- Top three groups47.3% of all records
- Behavior Technician rank3rd of the 10 Maryland cities with the most
Compared with Maryland as a whole, Columbia has 7.6× the state's share of registered nurse records and 0.47× its share of occupational therapist records.
Providers in Columbia, alphabetically
- Valerie Blanke, RNRegistered Nurse1073192811
- Marie-Gabrielle BlassouBehavior Technician1841778792
- Gary Blechman, M.D.Neonatal-Perinatal Medicine Physician1215982392
- Connie Blizzard, PSY.D.Clinical Psychologist1417142290
- Arnold Block, P.HDClinical Child & Adolescent Psychologist1508913542
- Christine Bloom, R.N.Registered Nurse1225257066
- Darlene Bloom, OTR/LOccupational Therapist1215494976
- Helen BloomBehavior Technician1881472199
- Matthew Bloom, DPTPhysical Therapist1952253346
- James Blucher, LCPCProfessional Counselor1871139790
- Brianna BlueBehavior Analyst1164274874
- Amy BlumOccupational Therapist1639741762
- Julie Blumenfeld, D.D.S.Pediatric Dentistry1720373947
- Kevin Blumenthal, MDUrology Physician1215182662
- Elizabeth BlumerProfessional Counselor1811082134
- Rose Blynn, RNRegistered Nurse1255095113
- Sharie BlytheRegistered Nurse1780113183
- George BoakyeBehavior Technician1265242184
- Jakaila BoatengBehavior Technician1912654997
- Emmanuel Boateng-GyabahBehavior Technician1548994536
- Lynaugh BobstBehavior Technician1013655752
- Hilary Boetsch, D.C.Chiropractor1265853394
- Jenell Bogan, RNRegistered Nurse1972088680
- Lauren BoggsBehavior Technician1427799436
- Amber Bokhari, PA-CPhysician Assistant1255807228
- Fende Bokossah, RNRegistered Nurse1174088009
- Mariana Bolanos RamirezBehavior Technician1255147518
- Hanya BolerBehavior Technician1679347041
- Kaylee BolgerProfessional Counselor1164396669
- Jessica BollingerBehavior Analyst1508405168
- Maryam BoloukiBehavior Analyst1073271144
- Jeanne Bolton, PH.D.Clinical Psychologist1760601181
- Michelle Bombico, OTROccupational Therapist1619183373
- Cornelius BomboBehavior Technician1609680172
- Natasha BondBehavior Technician1851997050
- Nathaniel BondBehavior Technician1578413217
- Shalitta BondBehavior Technician1699562009
- Lauren Bondroff, LGPCMental Health Counselor1184441404
- Cara BonelliSocial Worker1699548545
- Caly BonesMental Health Counselor1982555629
- Joa Bongiorni, RNRegistered Nurse1487014759
- Nivia Bonilla CardenasBehavior Technician1821959263
- Raven BooherBehavior Technician1578365425
- Sue BookerBehavior Technician1780300269
- Vanessa BookerBehavior Technician1073284428
- Jomesa BooneHome Health Aide1174095269
- Vivian Boone, RNRegistered Nurse1801497730
- Amy Booth, FNPFamily Nurse Practitioner1275984858
- Lisa BoothBehavior Technician1447755194
- Nodine BoothePsychiatric/Mental Health Nurse Practitioner1730883554
The largest Maryland cities
- Baltimore35,183
- Rockville14,353
- Bethesda7,245
- Silver Spring6,531
- Frederick3,981
How to read this directory
Columbia, Maryland appears in the CMS National Plan and Provider Enumeration System with 6,690 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 Columbia - 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 Columbia 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 Columbia is weighted toward Behavior Technician (2,034 clinicians, followed by Registered Nurse with 783 and Clinical Social Worker with 346). 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 Maryland's population, Columbia reports roughly 108.2 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 Maryland's most common specialties, Home Health Aide is the most prominent one with no provider currently listing a Columbia practice address, a coverage gap Columbia patients typically fill by traveling to a larger nearby hub.
For Columbia 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 Columbia, MD?
There are 6,690 registered healthcare providers in Columbia, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Columbia?
The most common specialties in Columbia are Behavior Technician, Registered Nurse, Clinical Social Worker, Behavior Analyst, Physical Therapist. Behavior Technician has the most providers with 2,034.
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.