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 126 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. Samantha ZalewskiSpeech-Language Pathologist1629727318
  2. Jayson Zammerilli, LPCMental Health Counselor1982330189
  3. Anne Zanger, M.S., CCC-SLPSpeech-Language Pathologist1134000342
  4. Bruce Zangwill, MDAnatomic Pathology & Clinical Pathology Physician1982616496
  5. Frances Zappalla, D.O.Pediatric Cardiology Physician1013009844
  6. Deborah Zarek, M.D.Internal Medicine Physician1619930708
  7. Karen Zaritsky, MDPediatrics Physician1700848017
  8. Dory ZatuchniClinical Social Worker1083624977
  9. Anthony Zaza, PHDCounseling Psychologist1366542979
  10. Miroslaw Zdunek, M.D.Nephrology Physician1508853615
  11. Christopher Zebley, NPNurse Practitioner1780663955
  12. Gloria Zehnacker, CRNACertified Registered Nurse Anesthetist1851387401
  13. Stephanie Zeigler, LCSWClinical Social Worker1881150761
  14. David Zeldin, MDFamily Medicine Physician1790914018
  15. Diane Zelinka, ODOptometrist1952469199
  16. Rebecca Zenkert, PSY.D.Clinical Psychologist1538461801
  17. Crystal Zepp, PTPhysical Therapist1871159285
  18. Dimitrios Zerefos, DOGeneral Practice Physician1013916766
  19. Hongyu ZhangInternal Medicine Physician1609280551
  20. Lyvia Zhang, DOStudent in an Organized Health Care Education/Training Program1750136032
  21. Stephanie Zhang, RDRegistered Dietitian1902909245
  22. Hang Zhou, MDAnatomic Pathology & Clinical Pathology Physician1619250248
  23. Ying Zhu, MDFamily Medicine Physician1801858840
  24. Cassie ZimmermanBehavior Technician1194535674
  25. Catherine Zimmerman, ED.S.School Psychologist1790080745
  26. Hannah ZinkandMental Health Counselor1700774189
  27. Lillian ZobelStudent in an Organized Health Care Education/Training Program1659211795
  28. Karen Zogheib, LCSW, ACSWClinical Social Worker1346332103
  29. Deborah Zola, APRN,CNPFamily Nurse Practitioner1992921910
  30. Arezoo Zomorrodi, M.D.Pediatric Emergency Medicine (Pediatrics) Physician1043230634
  31. Julie Zorach, M.S.W., L.C.S.W.Clinical Social Worker1174659296
  32. Catherine Zorc, M.D.General Practice Physician1609079250
  33. Steven Zou, PHARM.D.Pharmacist1295405355
  34. Peter Zuber, P.T.Physical Therapist1528092855
  35. Howard Zucker, DENTISTGeneral Practice Dentistry1871638387
  36. Meghan Zullo, DPTPhysical Therapist1508107194
  37. Mary Zumbo, REGISTERED NURSERegistered Nurse1134398910
  38. Bryan ZunigaDiagnostic Radiology Physician1811421167
  39. Brooke Zuvich, COTA/LOccupational Therapy Assistant1720414782
  40. Benjamin Zwolan, ODOptometrist1629700240
  41. Theodore Zyskowski, CRNACertified Registered Nurse Anesthetist1336173699

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.