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 43 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
- Gregory GaydoshBehavior Technician1457964207
- Jessica Gayle, RNRegistered Nurse1821440090
- Ruchama GaylerBehavior Technician1417878802
- Laura Gaylor, RNRegistered Nurse1306271887
- Tagnon Yanne Gbokede, RBTBehavior Technician1699658658
- Zenatsehay GebretsadikPsychiatric/Mental Health Nurse Practitioner1053087106
- Lauren Geisbert, DPTPhysical Therapist1124227400
- Ira Gelb, M.D.Sports Medicine (Orthopaedic Surgery) Physician1811991755
- Anne Gelber, NPNurse Practitioner1902106214
- Lisa GeldmacherRegistered Nurse1215412937
- Marlee Gelfand, LMSWSocial Worker1124784749
- Daniel GellerBehavior Technician1659216661
- Helen Gelso, LCSW-CClinical Social Worker1134293616
- Gemina GenaCardiac Rehabilitation Registered Nurse1538632211
- Christina Generie, ODOptometrist1255432928
- Andrea GeorgeOccupational Therapist1679031850
- Brittany GeorgeBehavior Technician1568987444
- Crystal GeorgeSpeech-Language Pathologist1518848175
- Niyah GeorgeBehavior Technician1669314894
- Stephen George, M.D.Rheumatology Physician1386628055
- Karen GeppiRegistered Nurse1790195899
- Maria Geppi, RNRegistered Nurse1093108995
- Mary Gerrard, PHDClinical Psychologist1538725452
- Tsehaye GesesewHospitalist Physician1831564319
- Robert Gessler, M.D.Urology Physician1427122498
- Selamawit GetachewEmergency Medicine Physician1215973656
- Kira GettisBehavior Technician1023787033
- Natalie Getzoff, M.D.Neurology Physician1558335380
- Rebecca Geurts, CRNPFamily Nurse Practitioner1295283984
- Rasa Ghaffarian, PHDHealth & Wellness Coach1063256949
- Nicole GhalebBehavior Technician1598572471
- Souzan GhareebRegistered Nurse1598176307
- Rukhsana GhauriBehavior Technician1144026949
- Mohammed Gheba, M.D.Surgery Physician1033130802
- Helen GherezghiherRegistered Nurse1629442439
- Hamidreza Ghorbaniparvar, DDSDentist1942864392
- Shadi Ghozati, D.D.SGeneral Practice Dentistry1578636510
- Jessica Giacobbe, LCPCMental Health Counselor1386359040
- Lauren GiampaBehavior Technician1043887797
- Christina GianeselloBehavior Technician1609659465
- Stephanie GianniAcupuncturist1609543677
- Frank Giargiana, M.D.Specialist1841326642
- Joseph Gibbons, M.D.Internal Medicine Physician1023124922
- Susanne Gibbons, CRNPNurse Practitioner1649287293
- Audrey Gibbs, RNRegistered Nurse1043799620
- Barbara GibbsBehavior Technician1528737905
- Amilya GibsonBehavior Technician1205706967
- Emily GibsonBehavior Technician1073275582
- Melissa Gidlund, O.D.Optometrist1821167867
- Heather GiffordPharmacist1477944403
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.