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 34 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
- Dannene Drummond, BCBABehavior Analyst1003257080
- Latoya DrummondBehavior Technician1093251027
- Cuiqiong DuFamily Nurse Practitioner1366120149
- Rajiv Dua, M.D.Family Medicine Physician1043326945
- Jennifer Duan, ODOptometrist1275796955
- Ana Duarte, CRNP-PMHPsychiatric/Mental Health Nurse Practitioner1790097913
- Giovanna DuarteBehavior Technician1104568955
- Maria DuarteBehavior Technician1134920937
- Josephine Dubon, PAPhysician Assistant1235638115
- Cameryn DuboseBehavior Technician1902537814
- Courtney DuboviBehavior Analyst1184355224
- Joy Dubrovich, PA CPhysician Assistant1609050855
- Marlon DucrepinBehavior Technician1174344170
- Crystal DucrosBehavior Technician1821640210
- Lynn Dudley, P.A.Medical Physician Assistant1316058084
- Patricia Dudley, LCPC, NCCProfessional Counselor1871132233
- Sara Dudley, M.D.Radiation Oncology Physician1043589880
- Angela Duffey, RNRegistered Nurse1689260952
- Margaret DuffyBehavior Technician1376241257
- Jacob Dugan, LCSW-CSocial Worker1427832021
- Julia DuganBehavior Technician1053207217
- Denaria DugginsBehavior Technician1194452094
- Richard Dulaney, LCPCMental Health Counselor1184199614
- Itallia DunbarBehavior Technician1679320394
- Sharon DunbarBehavior Technician1245109818
- Holly Duncan, AU.D.Audiologist1902215502
- Kate Duncan, LCPCMental Health Counselor1205371895
- Mason Dunham, M.D.Anesthesiology Physician1225485162
- Erin Dunkle, M.S., CCC-SLPSpeech-Language Pathologist1619058476
- Deborah Dunn, P.A.-CPhysician Assistant1124043427
- Trucphuong Denise DuongRegistered Nurse1720407927
- Cheryl Durant, MPTPhysical Therapist1083835466
- Paige DurborowBehavior Technician1881523413
- Regina Durso, LCSW-CClinical Social Worker1992254122
- Melissa Dutt McDermott, BCBA, LBA, NCCBehavior Analyst1174118814
- Mailynna Dutton, RNRegistered Nurse1508457508
- Anita Dworkin, PH.D.Psychologist1588602940
- Edward Dworkin, PH.D.Psychologist1811930068
- Sade DyceBehavior Technician1497272710
- Amy Dye, RNRegistered Nurse1336571934
- Taylor DyeBehavior Technician1083140875
- Cara DykeBehavior Technician1407721517
- Naomi DysonRegistered Nurse1699210435
- Tawanda DysonBehavior Technician1063147106
- Nadine Dzieketey, PTPhysical Therapist1083810295
- Anna Dziwulski, LCPCProfessional Counselor1033981113
- Wilma EadyRegistered Nurse1538575808
- Gillian EarlyBehavior Technician1285201673
- Ashley Eason, LCSWCSocial Worker1396140091
- Tawanda Eason-EvansBehavior Technician1679038988
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.