NPPES file of Aug 9, 2026

Doctors and health care providers in Wilmington, DE

6,291 individual NPPES records list a practice address in Wilmington, 1st of 44 Delaware cities. The largest group is clinical social worker: 345, 5% of the city's records, against 4% across Delaware. Page 27 of 126.

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

Wilmington in Delaware

  • Rank in Delaware1st of 44 cities by records
  • Share of the state29.7% of Delaware's records
  • Specialties present25 or more taxonomy codes
  • Top three groups15.1% of all records
  • Clinical Social Worker rank1st of the 10 Delaware cities with the most

Compared with Delaware as a whole, Wilmington has 2× the state's share of pediatrics physician records and 0.31× its share of registered nurse records.

Providers in Wilmington, alphabetically

  1. Jeannine Del Pizzo, M.D.Pediatrics Physician1194906321
  2. Eileen Delacruz, PSYSchool Psychologist1427301506
  3. Michael Delacruz, MDAnatomic Pathology & Clinical Pathology Physician1275699696
  4. Katherine DelahantySpeech/Language/Hearing Specialist/Technologist1417091398
  5. Torie Delaine, MASTERS DEGREESocial Worker1083958425
  6. Anita Delaney, LPCMHMental Health Counselor1720311301
  7. Debra Delaney, ACNS, FNPFamily Nurse Practitioner1699908558
  8. Rhonda DelaneyRegistered Nurse1144710302
  9. Neil Deleeuw, MDPlastic Surgery Physician1225141625
  10. Lisa Deleonardo, PSY.D.Clinical Psychologist1013056860
  11. Mae Delguercio, LCSWClinical Social Worker1194915454
  12. Laurie Delinde, OTOccupational Therapist1295145332
  13. Hamid Deliri, M.D.Cardiovascular Disease Physician1801834833
  14. Mary Dell'Olio, M.S.W.,L.C.S.W.Clinical Social Worker1184846313
  15. Mark Dellose, D.M.D.General Practice Dentistry1538388335
  16. Steven Dellose, MDOrthopaedic Surgery Physician1679512685
  17. Kerri Delorenzo, SLPSpeech-Language Pathologist1245797497
  18. Stephanie DelorenzoSpeech-Language Pathologist1750970216
  19. Sharon DelozierOccupational Therapy Assistant1326182205
  20. Nicholas Delpesco, MA, LPCMental Health Counselor1053700187
  21. William Delpino, PHARM DPharmacist1992081079
  22. Jose Delrosario, MDPediatric Gastroenterology Physician1619068988
  23. Ellen DelucaFamily Nurse Practitioner1225332034
  24. Lynsie DelvalleOccupational Therapy Assistant1043052087
  25. Rachel DemaioSchool Psychologist1396227559
  26. Kenneth Demarco, MDSpecialist1841289899
  27. Jeffrey Demare, MDPediatric Critical Care Medicine Physician1922065267
  28. Laura DemareSchool Registered Nurse1023890480
  29. Haley DemartinStudent in an Organized Health Care Education/Training Program1114891314
  30. Cherie Demerchant, NP-CFamily Nurse Practitioner1982945275
  31. Neera Demharter, MDPediatrics Physician1730767021
  32. Alexandra Demichele, MDStudent in an Organized Health Care Education/Training Program1780570549
  33. Andrew Demichele, MDSurgery Physician1902817018
  34. Kelsey DemonteSpeech-Language Pathologist1871088567
  35. Gena Dempsey, RNRegistered Nurse1164932364
  36. Pauline Dempsey, LCSWClinical Social Worker1710928668
  37. Alyssa Denenberg, CPNP-PCPediatrics Physician1023577616
  38. Doina DenesSchool Psychologist1235273111
  39. Marilynn Denn, PHD LPCMHCounselor1760581615
  40. Beverly DennettHealth Educator1306345616
  41. Diane Dennison, LCSWMental Health Counselor1962499210
  42. Iysha Dent, CNCHealth Educator1811764921
  43. Joseph Depenbusch, M.D.Anatomic Pathology & Clinical Pathology Physician1457327298
  44. Steph DeputyHealth & Wellness Coach1285208694
  45. Travis Deputy, AU.DAudiologist1316318710
  46. Christopher Derby, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1962593236
  47. George Derenzo, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1811047962
  48. Arthur Dermen, M.D.Student in an Organized Health Care Education/Training Program1013362151
  49. Kimberly Ders, AGPCNP-BCPrimary Care Nurse Practitioner1427975077
  50. Krupa DesaiSpeech-Language Pathologist1659049187

The largest Delaware cities

  1. Newark4,662
  2. Dover2,137
  3. Lewes1,696
  4. New Castle766
  5. Milford713

All of Delaware →

How to read this directory

Wilmington, Delaware appears in the CMS National Plan and Provider Enumeration System with 6,291 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 Wilmington - 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 Wilmington 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 Wilmington is weighted toward Clinical Social Worker (345 clinicians, followed by Physical Therapist with 332 and Addiction (Substance Use Disorder) Counselor with 274). 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 Delaware's population, Wilmington reports roughly 609.7 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.

For Wilmington 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 Wilmington, DE?

There are 6,291 registered healthcare providers in Wilmington, DE, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Wilmington?

The most common specialties in Wilmington are Clinical Social Worker, Physical Therapist, Addiction (Substance Use Disorder) Counselor, Student in an Organized Health Care Education/Training Program, Mental Health Counselor. Clinical Social Worker has the most providers with 345.

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.