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 6 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
- Jennifer Appleby, RN, CDEDiabetes Educator Registered Nurse1457786493
- Dolly Applegate, LCSW-CClinical Social Worker1518098797
- Marc Applestein, M.D.Urology Physician1679511620
- Fedeline Appolon, LCPC, NCCProfessional Counselor1578174900
- Duane Archer, DDS, MPHDentist1518186493
- Jennifer Arcila, CRNACertified Registered Nurse Anesthetist1801291372
- Katherine ArciniegaBehavior Technician1619631199
- Jessica Arcoraci, RN BSNRegistered Nurse1336530906
- Erica Ardinger, LCSW-CSocial Worker1275192700
- Olivia ArdreyBehavior Technician1811813314
- Emma ArellanoBehavior Technician1407553118
- Alexander Arevalo, M.ED, BCBABehavior Analyst1386241750
- Elizabeth Argo-WilbanksBehavior Technician1609353770
- Daniela ArguetaBehavior Technician1245910876
- Steven AriasBehavior Technician1235024498
- Emely Arias SortoBehavior Technician1528945797
- Julissa Arias-LopezBehavior Analyst1831703909
- Maria Arini, DPTPhysical Therapist1063790707
- Ava ArmstrongBehavior Technician1104586569
- Latonya Armstrong, RN, MSNRegistered Nurse1134574320
- Emily ArndtsOccupational Therapist1275195745
- Darrilynne Arnelle-Mazyck, M.D.Pediatrics Physician1336291384
- Sarah Arnold, MDFamily Medicine Physician1447222542
- Tiffanie ArnoldBehavior Technician1619837218
- Carrie ArnsbergerRegistered Nurse1336554757
- Vimala Arputham, RNRegistered Nurse1053829804
- Amber ArringtonBehavior Technician1780460337
- Stephanie Arseneault, APRNFamily Nurse Practitioner1790175032
- Meaghan Arsola, M.S.PSY, BCBA, LBABehavior Analyst1881355501
- Edna Asamany, REGISTERED NURSERegistered Nurse1568914315
- Abena Asamoah, RNRegistered Nurse1750759734
- Elsie Asare, NPNurse Practitioner1528356821
- Nicole Asbahr, L.ACAcupuncturist1669947008
- Eissa Asemani, M.D.Anesthesiology Physician1770550329
- Kudirat AsemotaBehavior Technician1093664138
- Riffat Ashai, MDPsychiatry Physician1003857038
- Samara AshbyBehavior Technician1124891056
- Kevin Asher, DDSOral and Maxillofacial Surgery (Dentist)1043372188
- Lisa Ashton, P.A.C.Physician Assistant1619088325
- Sharay AshtonBehavior Technician1386466993
- Uchenna AsiegbuBehavior Technician1578153987
- Nebrea AskewBehavior Technician1700697828
- Momina AslamPhysician Assistant1659182491
- Nadeem AslamStudent in an Organized Health Care Education/Training Program1558642504
- Princess AslamLactation Consultant (Registered Nurse)1710492921
- Eureka Asli, RNRegistered Nurse1457744351
- Shemicka Asom, CRNPFamily Nurse Practitioner1982025375
- Ann Aspnes, PH.D.Psychologist1386886893
- Ghadeer AssamawyBehavior Technician1285236364
- Patricia Assan, M.D.Child & Adolescent Psychiatry Physician1114086972
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.