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 272 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. Josi Herren, DOVascular & Interventional Radiology Physician1891226361
  2. Alison Herrera, DPTNeurology Physical Therapist1588271431
  3. Diego Herrera, PT, DPTPhysical Therapist1528843687
  4. Filimon HerreraAcute Care Nurse Practitioner1801330758
  5. Geliza Herrera, CRNACertified Registered Nurse Anesthetist1215277579
  6. Jessica HerreraStudent in an Organized Health Care Education/Training Program1548122401
  7. Laura Herrera, M.D.Internal Medicine Physician1285684274
  8. Melanie Herrera, LSWASocial Worker1952428633
  9. Paris HerreraBehavior Technician1992544464
  10. Katherine Herrgott, NPCritical Care Medicine Nurse Practitioner1184438160
  11. Hannah HerridgeRegistered Nurse1043140197
  12. Allison Herring, MDDiagnostic Radiology Physician1902260979
  13. Emani HerringSpeech-Language Pathologist1134844277
  14. Joanna Herrington, L.C.S.W-CSocial Worker1023360369
  15. Marissa Herritt, LMSWClinical Social Worker1336797612
  16. Brooke HerrmannClinical Social Worker1306316617
  17. William HerrmannPhysical Therapist1174490759
  18. Princess HerryBehavior Technician1124952049
  19. Andrew HershStudent in an Organized Health Care Education/Training Program1689264624
  20. Joan Hershey, MSN, ANP-BCAdult Health Nurse Practitioner1912346479
  21. Jonathan Hershfield, MFTMarriage & Family Therapist1780216275
  22. Kadija Hersi, M.DInternal Medicine Physician1740593987
  23. Adina Hersko, PA-CPhysician Assistant1982020749
  24. Lori Herstein, CRNACertified Registered Nurse Anesthetist1821293770
  25. Danielle Hertel, RD, LDNRegistered Dietitian1407231608
  26. Sam Hertl, LCSW-CClinical Social Worker1528795044
  27. Sarah Herts, DOPsychiatry Physician1093094740
  28. Betty Hertz, NPNurse Practitioner1841501632
  29. Ronna Hertzano, MD, PHDOtology & Neurotology Physician1952426991
  30. Leonard Hertzberg, MD, POPsychiatry Physician1619314580
  31. Christine Herz, LMSWSocial Worker1407685944
  32. John Herzenberg, M.D.Orthopaedic Surgery Physician1922041557
  33. Kurt HerzerStudent in an Organized Health Care Education/Training Program1104285618
  34. Laura Herzig, M.D.Neonatal-Perinatal Medicine Physician1609289263
  35. Carrie Herzke, M.D.Internal Medicine Physician1629254123
  36. Kathleen Herzog, MS CCC-SLPSpeech-Language Pathologist1568617926
  37. Mary Hesdorffer, N.P.Oncology Registered Nurse1114938420
  38. Christine Hess, MSWSocial Worker1942226428
  39. Christine Hess, PHDPsychologist1609401280
  40. Paul Hess, NPNurse Practitioner1124061361
  41. Nicola Hesse, M.D.Obstetrics & Gynecology Physician1679542500
  42. Mark Hesseltine, PASurgical Physician Assistant1942230586
  43. Denise HesseltonClinical Social Worker1588128847
  44. Jacquelyn Hesselton, P.A.Physician Assistant1952360638
  45. Michelle Hessen, O.D.Optometrist1740420686
  46. Serena Hession, MS, LBA, BCBA, QBABehavior Analyst1265145551
  47. Lindsay Hessler, M.D.Surgery Physician1659632933
  48. Kiara HesterBehavior Technician1093452534
  49. Melissa HesterBehavior Technician1720862600
  50. Nicole Hester, LCSW-CClinical Social Worker1679329437

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.