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 70 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
- Michael Lent, PH.D.Clinical Psychologist1932676368
- Allison Lentz, WHNP, CNMMidwife1396451290
- Dorothy Leonard, RNRegistered Nurse1942745294
- Sierra LeonardBehavior Technician1467246132
- Katherine LeoneBehavior Analyst1265888713
- Suzanne Lescht, LCSW CSocial Worker1255476586
- Dylan Lescure, MDEmergency Medicine Physician1871159921
- Ashlee LesterBehavior Technician1972108181
- Kim LesterBehavior Technician1336809698
- Julia LeungBehavior Analyst1124626759
- Marc Levender, LCPCProfessional Counselor1912698507
- Erica Leventhal, MDObstetrics & Gynecology Physician1972562353
- Rona Levi, LCSW-CClinical Social Worker1053327742
- Steven Levin, M.D.Pain Medicine (Anesthesiology) Physician1730291766
- Veronika Levin, M.D.Obstetrics & Gynecology Physician1770962680
- Jerry Levine, M.D.Internal Medicine Physician1295736429
- Shequietta LevineBehavior Technician1578349312
- Staci Levine, DPTPhysical Therapist1790935302
- Mary Levinsohn-Klyap, PH.D.Psychologist1396928115
- Julian Levy, ODOptometrist1578647715
- Ilana Levy-Paris, PH.D.Clinical Psychologist1912312083
- Samantha Lewandowski, RD LD MSNutrition Education Nutritionist1871695874
- Angela Lewis, PT, DPTPhysical Therapist1396927620
- Beatrice Lewis, MSW, LCSW-CClinical Social Worker1811252745
- Carla LewisBehavior Analyst1447149828
- Chastity LewisBehavior Technician1194608695
- Hillary LewisBehavior Technician1003344433
- John LewisRegistered Nurse1912303983
- Kelley Lewis, RNRegistered Nurse1376935148
- Lezley LewisBehavior Technician1528725215
- Lorraine LewisBehavior Technician1164215687
- Lynn Lewis, LCSW-CClinical Social Worker1346555356
- Morine Lewis, LMT, CNAMassage Therapist1841003423
- Rachael Lewis, CRNPFamily Nurse Practitioner1801311378
- Serina Lewis, MDFamily Medicine Physician1174180277
- Toya Lewis, RNRegistered Nurse1326715822
- Melissa Lewis-Pringle, R.N.Registered Nurse1437494820
- Corinne Lewkowicz, PHDPsychologist1649770462
- Harry Li, M.D.Internal Medicine Physician1487711552
- Huina LiBehavior Analyst1881574549
- Judy Li, APRNNurse Practitioner1750191516
- Pearl LiPharmacist1174308449
- Shiau Rung Li, PA-CMedical Physician Assistant1528109196
- Xin LiGenetic Counselor (M.S.)1366076713
- Xuewei Li, D.D.S.Dentist1700015542
- Yingjun Li, M.D.Neurology Physician1154540516
- Peter Liao, M.D.Surgery Physician1306809033
- Belle Libber, P.T.A.Physical Therapy Assistant1164632733
- Elena Libster, RNRegistered Nurse1528575289
- Kelsey LicataBehavior Technician1861084568
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.