NPPES file of Aug 9, 2026

Doctors and health care providers in Baltimore, MD

35,183 individual NPPES records list a practice address in Baltimore, 1st of 284 Maryland cities. The largest group is students in training: 4,028, 11% of the city's records, against 4% across Maryland. Page 477 of 704.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Baltimore

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Baltimore in Maryland

  • Rank in Maryland1st of 284 cities by records
  • Share of the state22.1% of Maryland's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.1% of all records
  • Students in training rank1st of the 10 Maryland cities with the most

Compared with Maryland as a whole, Baltimore has 3.2× the state's share of student in an organized health care education/training program records and 0.64× its share of professional counselor records.

Providers in Baltimore, alphabetically

  1. Anna Osztreicher, CRNObstetrics & Gynecology Nurse Practitioner1841233251
  2. Prisca OtegbadeBehavior Technician1689471351
  3. Angela Otero, LMSWSocial Worker1649924424
  4. Rafael Otero De Santiago, PHARMDPharmacist1902317613
  5. Ben Oteyza, M.D.Surgery Physician1154421790
  6. Leen Othman, M.D.Student in an Organized Health Care Education/Training Program1538857073
  7. Stanley OtiwuSolid Organ Transplant Pharmacist1053163980
  8. Sarah OtleyClinical Social Worker1043814650
  9. Susan Otremba, CRNPAcute Care Nurse Practitioner1225248727
  10. Sherel Ott, FNPFamily Nurse Practitioner1851367957
  11. Lauren Ottenstein, M.S., CCC-SLPSpeech-Language Pathologist1215210034
  12. Luke Otterbein, LCSW-CClinical Social Worker1386345908
  13. Sondra OtukoyaRecreation Therapist1891091096
  14. Emmanuela OtunugaBehavior Technician1700633484
  15. Alison Ou, ODOptometrist1144054297
  16. Michael OuStudent in an Organized Health Care Education/Training Program1801366836
  17. Melissa OuazanaMental Health Counselor1881228690
  18. Johain Ounadjela, MDStudent in an Organized Health Care Education/Training Program1891634093
  19. Irene Oung, M.D.Pediatrics Physician1215999230
  20. Patricia Ourand, MS, CCC-SLPSpeech-Language Pathologist1457479743
  21. Cheryl Oursler, BEHAVIORAL TECHBehavior Technician1710963285
  22. Esther Ousborne, C.R.N.A.Certified Registered Nurse Anesthetist1255337820
  23. Katharine Outen, CRNPAcute Care Nurse Practitioner1104478114
  24. Janie OutlawStudent in an Organized Health Care Education/Training Program1225731938
  25. Ayanna Outten, LMSWClinical Social Worker1598445173
  26. Caroline Outten, CNSCritical Care Medicine Clinical Nurse Specialist1528755782
  27. Pamela Ouyang, M.D.Cardiovascular Disease Physician1013963420
  28. Rebecca Over, OTD, OTR/LOccupational Therapist1407579469
  29. Emily Overberg, BCBA, LBABehavior Analyst1902320781
  30. Tina OverlyBehavior Technician1396547659
  31. Eriko OvertonBehavior Technician1508438292
  32. Heidi Overton, M.D.Student in an Organized Health Care Education/Training Program1689069668
  33. Heather OviedoSpeech-Language Pathologist1770722340
  34. Jane OwenBehavior Technician1720720337
  35. Valerie Owen, CRNPFamily Nurse Practitioner1457809055
  36. Aireka OwensBehavior Technician1275261182
  37. Ashley Owens, MDStudent in an Organized Health Care Education/Training Program1780487215
  38. Ashley OwensPhysician Assistant1316806003
  39. Benjamin Owens, MDStudent in an Organized Health Care Education/Training Program1326988940
  40. Caroline Owens, D.D.S.Dentist1174712913
  41. Crystal OwensBehavior Technician1326775354
  42. Dylan OwensBehavior Technician1689502437
  43. Heidi OwensBehavior Technician1215817119
  44. Jennifer OwensBehavior Technician1740929751
  45. Jillian Owens, APRN, FNP-CFamily Nurse Practitioner1144822529
  46. Kerry Owens, M.D.Plastic Surgery Physician1134128903
  47. Linda Owens, LMSWSocial Worker1154068872
  48. Malayah OwensBehavior Technician1487526455
  49. Melissa OwensAddiction (Substance Use Disorder) Counselor1669662458
  50. Nefertari Owens, MDObstetrics & Gynecology Physician1922596527

The largest Maryland cities

  1. Rockville14,353
  2. Bethesda7,245
  3. Columbia6,690
  4. Silver Spring6,531
  5. Frederick3,981

All of Maryland →

How to read this directory

Baltimore, Maryland appears in the CMS National Plan and Provider Enumeration System with 35,183 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 Baltimore - 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 Baltimore 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 Baltimore is weighted toward Student in an Organized Health Care Education/Training Program (4,028 clinicians, followed by Behavior Technician with 3,602 and Clinical Social Worker with 1,917). 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, Baltimore reports roughly 569.3 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 Baltimore practice address, a coverage gap Baltimore patients typically fill by traveling to a larger nearby hub.

For Baltimore 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 Baltimore, MD?

There are 35,183 registered healthcare providers in Baltimore, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Baltimore?

The most common specialties in Baltimore are Student in an Organized Health Care Education/Training Program, Behavior Technician, Clinical Social Worker, Internal Medicine Physician, Physician Assistant. Student in an Organized Health Care Education/Training Program has the most providers with 4,028.

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.