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 76 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
- Eddie MartinCounselor1790664456
- Grace Martin, RBTBehavior Technician1427905751
- Joy Martin, PH.D., L.G.S.W.Clinical Social Worker1639188097
- Kayla MartinBehavior Analyst1063960672
- Kaylynne MartinBehavior Technician1093690901
- Laura MartinRegistered Nurse1992106991
- Marcie MartinRegistered Nurse1467825265
- Mikayla MartinBehavior Technician1780537100
- Tiffany Martin, LGPCProfessional Counselor1487500864
- Wiloyce MartinBehavior Technician1265101349
- Brigdgett Martin-Love, LCSW-CClinical Social Worker1235422494
- Elissa MartinezBehavior Analyst1790246338
- Etel MartinezBehavior Technician1033899679
- F Martinez, M.DEmergency Medicine Physician1871634386
- Jennifer Martinez, RNRegistered Nurse1801259833
- Josselyn MartinezBehavior Technician1528980364
- Maximilliano MartinezBehavior Technician1487573598
- Olena Martinez, RNPsychiatric/Mental Health Nurse Practitioner1699047399
- Robin Martinez, FNP-BC. CDCESFamily Nurse Practitioner1942645452
- Pamela Martinez GonzalezBehavior Technician1467205781
- Mary MartiniCounselor1770781676
- Johanna Martino, CRNPNurse Practitioner1083674030
- Gwen Martinsen, PH.D.Psychologist1760508097
- Morgan MartucciBehavior Technician1285236281
- Jeffrey Marucut, PA-CPhysician Assistant1366794166
- Cheryl Marvin, APRN, FNP-BCFamily Nurse Practitioner1700589124
- Matthew Masangcay, DPTPhysical Therapist1205667292
- Oppah Masarira, APRN-CNPFamily Nurse Practitioner1104535251
- Asiah Mason, PH.DClinical Psychologist1871354571
- Dana Mason, CCC-SLPSpeech-Language Pathologist1033230115
- Jeannine MasonRegistered Nurse1093261083
- Latoy MasonBehavior Technician1861126385
- Lilia MasonBehavior Technician1275327272
- Matthew Mason, PH.D.Clinical Psychologist1871615559
- Nichele MasonBehavior Technician1750058186
- Nicole Mason, RDRegistered Dietitian1992229868
- Rashaan MasonBehavior Technician1578204251
- Rubina MasonRegistered Nurse1093138570
- George MassaquoiCase Manager/Care Coordinator1588462097
- Anthony Massey, M.D.Psychiatry Physician1750475448
- Corentin MassotBehavior Technician1245150317
- Shema MasurBehavior Technician1245122829
- Emily MataBehavior Analyst1528594363
- Deborah MataninRegistered Nurse1306276365
- Susan Mathason, LMTMassage Therapist1265884480
- Santhia Mathew, MDFamily Medicine Physician1851509012
- Ann Marie Mathews, M.S., CCC/SLPSpeech-Language Pathologist1487124293
- Deborah MathiasSpeech-Language Pathologist1245701549
- Gloria MathisClinical Psychologist1902112964
- Mitchell Mathis, M.D.Geriatric Psychiatry Physician1588846232
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.