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 111 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
- Shante ShorterBehavior Technician1902383060
- Samantha ShraderBehavior Technician1972208510
- Mona Shroff, O.D.Optometrist1912229865
- Robert Shroyer, MDDiagnostic Radiology Physician1386910370
- Christopher Shubert, MDSurgery Physician1164717559
- Ashleigh ShugarsPsychiatric/Mental Health Nurse Practitioner1063237626
- Brooke ShullBehavior Technician1376212134
- Ralph Shumake, P.D.Nutrition Support Pharmacist1619235181
- Nicole ShuronBehavior Technician1053245647
- Jeri Shuster, M.D.Gynecology Physician1487644894
- Adrienne Shutt, LCSW-CClinical Social Worker1457624462
- Alarie ShyllonBehavior Technician1043055106
- Joseph SiakamLicensed Practical Nurse1689036170
- Sandeep Sidana, M.D.Psychosomatic Medicine Physician1346409091
- Afsheen SiddiquiInternal Medicine Physician1205366911
- Barbara Siddle, PHDPsychologist1952422131
- Hema Sidhu, PH.D., RPSGT, RSTOther Specialist/Technologist1497162853
- Gabriela Siegel, M.D.Family Medicine Physician1518499730
- Clelia Sigaud, PSY.DStudent in an Organized Health Care Education/Training Program1881219814
- Adejoke Sijuwade, CRNP-FAMILYFamily Nurse Practitioner1811274632
- Tasmiyah SikdarBehavior Technician1881541274
- Bohne Silber, M.D.Psychologist1063763423
- Glenn Silber, MDAllergy & Immunology Physician1659315570
- Joanne Silbert-Flagg, C.R.N.P.Pediatric Nurse Practitioner1306872148
- Richard Silver, MDPsychiatry Physician1851326383
- Jack Silverman, D.D.S.General Practice Dentistry1013090976
- Michael Silverman, MDSpecialist1255309977
- Sharon Silverman, M.D.Internal Medicine Physician1144296328
- Nataliya SimakAcupuncturist1902227051
- Kamron SimmonsBehavior Technician1982557849
- Leah SimmonsBehavior Analyst1619562048
- Gereka SimmsBehavior Technician1952985327
- Kathrine SimmsMental Health Counselor1194912584
- Rachel Simms, PSY.D., L.C.P.CPsychologist1376910851
- Alexander SimonBehavior Technician1184394546
- Dawn SimonClinical Social Worker1891171740
- Maren Simons, PA-CPhysician Assistant1609955806
- Noah SimonsBehavior Technician1053111815
- Denashaja Simpkins, BEHAVIOR TECHNICIANBehavior Technician1467345363
- Ronnea SimpkinsBehavior Technician1003702226
- Syntia SimpkinsBehavior Technician1861090409
- Gaynell Simpson, LCSW-CClinical Social Worker1962611855
- Kathryn Simpson, RN, BSNRegistered Nurse1023567443
- Kelly SimpsonBehavior Technician1922999341
- Vontrese Simpson, APRNWomen's Health Nurse Practitioner1275077372
- Anthony Sims, DDSDentist1336485903
- Cheryl SimsBehavior Technician1942018411
- Rachel SimsBehavior Technician1518826197
- Sara Sims, P.T.Physical Therapist1235559899
- Tijnae SinclairBehavior Technician1740026566
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.