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 163 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. Helen Dietrick, R.N.Administrator Registered Nurse1356348023
  2. Ryan Dietsch, LCPCProfessional Counselor1396976890
  3. Gregory Diette, M.D.Pulmonary Disease Physician1023053881
  4. Edith Dietz, MDPediatrics Physician1437489531
  5. Harry Dietz, M.D.Clinical Genetics (M.D.) Physician1114954906
  6. Alarica DietzenHospitalist Physician1073262739
  7. Christine Diffenderffer, CRNPFamily Nurse Practitioner1831754563
  8. Jordan Differding, MS, CCC-SLPSpeech-Language Pathologist1194371195
  9. Karen Difilippo, CRNPGerontology Nurse Practitioner1073850756
  10. Kerri Digangi, BCBABehavior Analyst1689551657
  11. Dominic DigginStudent in an Organized Health Care Education/Training Program1659149094
  12. Alyssa Diggins, PTAPhysical Therapy Assistant1346987179
  13. Marie Diggins, CAC-ADAddiction (Substance Use Disorder) Counselor1891100400
  14. Brittany DiggsRehabilitation Counselor1295577138
  15. Chelsea Diggs, CRNPCritical Care Medicine Nurse Practitioner1831897917
  16. Danielle DiggsMental Health Counselor1447726971
  17. Frank Diggs, M.S.N., APRN-BCFamily Nurse Practitioner1609005222
  18. Harvena DiggsBehavior Technician1316810104
  19. Linda DiggsCommunity Health Worker1396579298
  20. Shateara DiggsBehavior Technician1821850033
  21. Idalee Digregorio, L.ACAcupuncturist1801172622
  22. Debra Digregorio-Celnik, RDRegistered Dietitian1770687246
  23. Sydney Digregory, MDStudent in an Organized Health Care Education/Training Program1083317655
  24. Carrie Dijenno, MS, OTR/LOccupational Therapist1376035279
  25. Miracle Dikeh, FNP-CFamily Nurse Practitioner1306425541
  26. James DilauraSocial Worker1235010125
  27. Emily Diliberto, MS CF-SLPSpeech-Language Pathologist1346603362
  28. Evan Dilks, PA-CMedical Physician Assistant1285377622
  29. Keena Dillard, P.A.-CPhysician Assistant1225359631
  30. Brian Diller, PA-CSurgical Physician Assistant1558746586
  31. Linda Dilley, PTAPhysical Therapy Assistant1982776191
  32. Rachel Dillinger, MDPsychiatry Physician1912402470
  33. Jessica DillionCase Manager/Care Coordinator1750070744
  34. Amanda Dillon, LBABehavior Analyst1124697982
  35. Brianna Dillon, MDPediatrics Physician1780265629
  36. Caroline Dillon, LMSWClinical Social Worker1063079275
  37. Kaitlyn DillonClinical Neuropsychologist1609718741
  38. Wendy Dillon, P.A.-CSurgical Physician Assistant1962647305
  39. Sean Gregorio Dillon AlvarezBehavior Technician1326960253
  40. Vasken Dilsizian, M.D.Nuclear Imaging & Therapy Physician1417980491
  41. Rhett Dimaano, MDHospitalist Physician1922206200
  42. Nerland DimancheRegistered Nurse1679103576
  43. Lindsay DimarcoPhysical Therapist1962393876
  44. Ledys Dimarsico, M.D.Hospitalist Physician1801846035
  45. Ubah DimbilEmergency Medicine Physician1760969927
  46. Christina Dimemmo, CSC-ADAddiction (Substance Use Disorder) Counselor1881009322
  47. Karen DimentsteinStudent in an Organized Health Care Education/Training Program1225886245
  48. Mark Dimino, M.DAnesthesiology Physician1124061072
  49. Sarah DinapoliStudent in an Organized Health Care Education/Training Program1992212880
  50. Cynthia Dinardo, LCSW-CClinical Social Worker1437290343

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.