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 474 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. Akua OnyangoBehavior Technician1619897501
  2. Ifeoma OnyeadorBehavior Technician1821947128
  3. Mary Ann Onyeali, MD, MBAAnesthesiology Physician1710320312
  4. Angela Onyebadi, NPPsychiatric/Mental Health Clinical Nurse Specialist1780288514
  5. Francisca OnyedumPsychiatric/Mental Health Nurse Practitioner1356003750
  6. Ngozi Onyegbula, CRNPFamily Nurse Practitioner1194432757
  7. Chinasa Onyeje, DNP,CRNP, FNP, PMHNPFamily Nurse Practitioner1851531263
  8. Victor Onyejiaka, MDNephrology Physician1770626087
  9. Onyinye Onyekwelu, DRPharmacist1033552468
  10. Adaugo OnyekwereProfessional Counselor1194686279
  11. Jovita Onyekwere, PMHNPRegistered Nurse1467164517
  12. Uchenna Onyekwere, MD, MPHHealth & Wellness Coach1447034236
  13. Adaku Onyembi, NP-CPsychiatric/Mental Health Nurse Practitioner1598236614
  14. Chiamaka OnyememBehavior Technician1730038035
  15. Nicole OnyenyeonwuStudent in an Organized Health Care Education/Training Program1669348819
  16. Samuel Onyewu, MBCHBAnesthesiology Physician1770901514
  17. Ihuoma OnyewuchiPharmacist1457801557
  18. Lawrence Onyewuchi, PTPhysical Therapist1578782942
  19. Chiadikaobi Onyike, M.D.Psychiatry Physician1184678724
  20. Ivy OoroBehavior Technician1164207502
  21. Lynn Opalensky, P.T.APhysical Therapy Assistant1215328257
  22. Benjamin Opara, M.D.Specialist1548221054
  23. Christopher OparaMental Health Counselor1831898824
  24. Nneka Opara, MA, CASSchool Psychologist1033935960
  25. Louise OpelPsychiatric/Mental Health Nurse Practitioner1629907357
  26. Katie Opert, OTA/LTOccupational Therapy Assistant1063827905
  27. Toyin Opesanmi, MDFamily Medicine Physician1346332434
  28. Lauren OpinionSpeech-Language Pathologist1942779418
  29. Cindy OpokuBehavior Technician1144112871
  30. Erika Opoku, PT, DPTPhysical Therapist1568013811
  31. Carl Oppenheim, D.D.S.Dentist1487098885
  32. Terisa OppongBehavior Technician1477269512
  33. Hector Opulencia, LCPCProfessional Counselor1073071536
  34. Rotem Or Bach, MDStudent in an Organized Health Care Education/Training Program1104588557
  35. Arinze OrabuezeHome Health Aide1629927645
  36. Juliana Oranye, CRNP-PMHPsychiatric/Mental Health Nurse Practitioner1770155723
  37. Ana-Maria Orbai, M.D.Internal Medicine Physician1255516332
  38. Carlos Orbegoso, MDCytopathology Physician1508856014
  39. Robert Ord, MDOral & Maxillofacial Surgery (D.M.D.)1730180043
  40. Meredith Ordak, LCSW-CClinical Social Worker1689385791
  41. Maria Ordaniel, CRNPAcute Care Nurse Practitioner1982987459
  42. Cindy Ordonez, RDN, LDNRegistered Dietitian1750267811
  43. Pablo Ordonez, MDFamily Medicine Physician1912586124
  44. Joy OrduBehavior Technician1093511362
  45. Joyce Ordun, CRNPFamily Nurse Practitioner1518008481
  46. Joseph OreficeHearing Instrument Specialist1568502359
  47. Ashraf OreiziGeneral Practice Dentistry1841975166
  48. Jonathan Orens, M.D.Pulmonary Disease Physician1871532341
  49. Daniel OrenzukGeriatric Pharmacist1306052261
  50. Albert Orhin, MDStudent in an Organized Health Care Education/Training Program1972495943

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.