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 396 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. Joann Manzo, CRNPPediatric Nurse Practitioner1992855738
  2. Nadia ManzoorStudent in an Organized Health Care Education/Training Program1386247195
  3. Chih-Ping MaoStudent in an Organized Health Care Education/Training Program1912470626
  4. Eric MaoStudent in an Organized Health Care Education/Training Program1407718331
  5. Jessica Mao, M.D.Student in an Organized Health Care Education/Training Program1588195291
  6. Richard Mao, D.M.D.Periodontics1952427825
  7. Serena Mao, MD, PHDRadiation Oncology Physician1376170985
  8. Angela Mapes, PA-CPhysician Assistant1760908438
  9. Alexandros Maragakis, M.A.Student in an Organized Health Care Education/Training Program1083028500
  10. Lisa Maragakis, M.D.Infectious Disease Physician1780620369
  11. Nicholas Maragakis, M.D.Neurology Physician1780626382
  12. Carol Maragos, CRNPAcute Care Nurse Practitioner1235285982
  13. Joseph Marana, RN, RNC-NICNeonatal Intensive Care Registered Nurse1508706466
  14. Michael MarandStudent in an Organized Health Care Education/Training Program1861355323
  15. Salih Marangoz, M.D.Pediatric Orthopaedic Surgery Physician1194905448
  16. Christopher Marano, M.DPsychiatry Physician1881620474
  17. Jessica MarasBehavior Technician1609583251
  18. Prasanna Marathe, MDDiagnostic Radiology Physician1588169197
  19. Lauren Marazzi Hinson, MD, PHDStudent in an Organized Health Care Education/Training Program1669226163
  20. Eduardo Marban, M.D.Cardiovascular Disease Physician1447286505
  21. Karen MarburgRegistered Nurse1043575921
  22. Kalia MarburyBehavior Technician1407605272
  23. Isabel Marcano Bonilla, MDEndocrinology, Diabetes & Metabolism Physician1902293863
  24. Lorena Marcano Bonilla, MD, PHDClinical Pathology Physician1265059695
  25. Dan Joseph Marcelino, PA-CSurgical Physician Assistant1578960035
  26. Arik Marcell, M.D., MPHPediatric Adolescent Medicine Physician1649220260
  27. Eugene Marcelle, CRNACertified Registered Nurse Anesthetist1376622274
  28. Olivia Marcelle GankhoueBehavior Technician1407670128
  29. Margaret Marcelli, LMSWClinical Social Worker1306444534
  30. Neal Marcelo, CRNACertified Registered Nurse Anesthetist1245870674
  31. Blair MarchRegistered Nurse1316775612
  32. Matthew March, OTOccupational Therapist1902753510
  33. Lucas Marchand, M.D.Orthopaedic Surgery Physician1992149025
  34. Milford Marchant, M.D.Orthopaedic Surgery Physician1013185867
  35. Rebecca MarchelClinical Social Worker1558162016
  36. Danielle Marchetti, LGPCCounselor1932535226
  37. Patricia Marchetti Smith, MS CCCSpeech-Language Pathologist1972790533
  38. Kelley Marchiano, P.A.Physician Assistant1922481993
  39. Natalie Marchione, DNP, PMHNPPsychiatric/Mental Health Nurse Practitioner1992327035
  40. Tania Marcic, M.D.Ophthalmology Physician1457313660
  41. Ellen Marciniak, MDCritical Care Medicine (Internal Medicine) Physician1467643866
  42. Richard Marcinko, P.A.-CPhysician Assistant1215973904
  43. Catherine Marcucci, MDAnesthesiology Physician1811950801
  44. Jaime MarcucciClinical Social Worker1194207985
  45. Beth Marcus, M.D.Internal Medicine Physician1093017659
  46. Brett MarcusBehavior Technician1780279521
  47. Emily Marcus, M.D.Internal Medicine Physician1184956773
  48. Jennifer Marcus, PT, DPT, CLTPhysical Therapist1457971517
  49. Leigh Marcus, M.D.Pediatric Hematology & Oncology Physician1295933992
  50. Robert Marcus, M.D.Rheumatology Physician1033329586

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.