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 62 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
- Tanya Kalmar, M.D.Obstetrics & Gynecology Physician1568465821
- Anna KalmusBehavior Technician1538896139
- Cynthia Kalodner, PH.D.Psychologist1356680805
- Madelyn KalpBehavior Technician1134057995
- Uko (ben) Kalu, OPA-CSurgical Physician Assistant1588972582
- Deborah Kalunian, REGISTERED NURSERegistered Nurse1982185872
- Abinah KamaraBehavior Technician1912895236
- Fatmata Kamara, REGISTERED NURSECase Management Registered Nurse1609522408
- Priya Kamath, M.D.Internal Medicine Physician1639585508
- Hannah Kamau, RNRegistered Nurse1144595398
- Jill KamenetzClinical Social Worker1225910482
- Junae KaneBehavior Technician1952063018
- Kara Kaniefski, M.ED., BCBABehavior Analyst1528654670
- Mariame Kante, PMHNPPsychiatric/Mental Health Registered Nurse1083283998
- Melinda Kantsiper, M.D.Internal Medicine Physician1275539421
- Medlina KanuBehavior Technician1922826049
- Luke Kao, M.D., PH.D.Neurology Physician1639144330
- Leonard Kapcala, MDEndocrinology, Diabetes & Metabolism Physician1306183264
- Alison KaplanSpeech-Language Pathologist1811466956
- Max KaplanSpeech-Language Pathologist1467294264
- Milca Kaplan, CRNPAdult Health Nurse Practitioner1457611774
- Rachel Kaplan, BCBABehavior Analyst1578196184
- Ronald Kaplan, AU.D.Audiologist1407860851
- Keith Karas, DMDGeneral Practice Dentistry1457408544
- Preetal KarechaMental Health Counselor1417445362
- Isatu Kargbo, DNP, CNM, FNP-BCAdvanced Practice Midwife1275909285
- Manjula Kari, MDPediatrics Physician1720110133
- Jessica KarpaiyaBehavior Technician1356006753
- Kathryn Karukas, MS, RD, LDNRegistered Dietitian1487225124
- Anika KasimsettyBehavior Technician1053910802
- Barbara Kass, LCPCMental Health Counselor1710404934
- Heather Kastanaras, MPTPediatric Physical Therapist1508084401
- Priya Janaki Kasturirangan, M.B.B.S, M.D.Pediatrics Physician1235889718
- Tonya Katcher, MDPediatrics Physician1477753002
- Sarah Katkhouda, FNP-CFamily Nurse Practitioner1003301862
- Eric Katkow, D.D.SGeneral Practice Dentistry1336153394
- Lawrence Katkow, DDSGeneral Practice Dentistry1043332125
- Brennan KatzBehavior Technician1689537128
- Denise Katz, LCSW-CClinical Social Worker1962568188
- Jennifer Cohen Katz, R.D.Registered Dietitian1861882284
- Katherine KatzClinical Social Worker1912513391
- Harman KaurSchool Psychologist1013724160
- Kendra Kay, M.D.Internal Medicine Physician1417923905
- Ghazala Kazi, M.D., M.P.H.Occupational Medicine Physician1831315563
- Gary Kazlow, M.D.,F.C.C.P.Specialist1609840370
- Mary Keane, LCSW-CClinical Social Worker1043437288
- Catherine Keast, L.AC., M.AC., NCCAOMAcupuncturist1437425477
- Ann Keating, CNS, LDNNutritionist1386012995
- Jacquelyn Keating, RNRegistered Nurse1942969035
- Ella KeatonBehavior Technician1457220063
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.