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 73 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
- Catherine LugardoBehavior Technician1134888225
- Greta LuharAcupuncturist1871328146
- Gordon Lui, M.D.Ophthalmology Physician1356381974
- Teagan Lukacs, DOEmergency Medicine Physician1306334206
- Joel LukangaBehavior Technician1104445501
- Ziel LunaBehavior Technician1013638360
- Gemma Lundergan, LGPCMental Health Counselor1144151309
- Veronica LundgrenBehavior Technician1477271757
- Crystal LunkinBehavior Technician1023581600
- Erin Lunsford, FNP-CNurse Practitioner1932689783
- Nicole Luoto, RN, BSNRegistered Nurse1396163994
- Katie Lupo, DPTPhysical Therapist1689438343
- Lauren LupusCounselor1912443318
- Lauren Lustig, DDSDentist1811568249
- Alexandra LutzBehavior Analyst1336736131
- Susan Luzwick, CMTSpecialist1184849358
- Jasmine LylesBehavior Technician1780536524
- Kylon LymonBehavior Analyst1043044910
- Laura Lynch, CRNPObstetrics & Gynecology Nurse Practitioner1124029285
- Melody Lynch, PTAPhysical Therapy Assistant1497151393
- Olivia LynchRegistered Dietitian1912582693
- Jenna LynottBehavior Technician1023781721
- Tiffanee Lyons, PHARMDPharmacist1457534950
- Nicole Ma, O.D.Optometrist1730443987
- Adrienne Mabee, R.N.Registered Nurse1427468529
- Casey Mabry, M.D.Internal Medicine Physician1366805145
- Alexander Macarthur, MDDiagnostic Radiology Physician1033344106
- Nicole MacchiaDental Hygienist1750932752
- Mollie MaceBehavior Technician1073278321
- Janet Macfarlane, LCSWCClinical Social Worker1649357393
- Greta Macgill, LCPC, RPTMental Health Counselor1023443405
- Ashley MackBehavior Technician1033871926
- Jonathan Mack, PT, DPTPhysical Therapist1295561090
- Telissa MackallLicensed Practical Nurse1043753379
- Angelica Mackey, RNRegistered Nurse1518266030
- Juanita MackeyBehavior Technician1245064617
- Sheila Macklin, MD R189959Registered Nurse1861983322
- Nichole MackoBehavior Technician1700552429
- Helen Macmillan, PTPhysical Therapist1346385218
- Damien Macon, SLPSpeech-Language Pathologist1275269375
- Valeria Macuare, MA, BCBABehavior Analyst1215562962
- Allie MaddenSpeech-Language Pathologist1700317781
- Sean MaddenBehavior Analyst1043069826
- Lavanya MadhusudanSocial Worker1174233050
- Lisa Madigan-Carey, PTPediatric Physical Therapist1689795767
- Dolores Madiou, LCSW-CClinical Social Worker1346266582
- Sarah MadisonClinical Social Worker1851274500
- Anthony MadonnaBehavior Technician1841879004
- Larissa MafouoBehavior Technician1104742527
- Christina Magnotti, RNRegistered Nurse1851793764
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.