NPPES file of Aug 9, 2026

Zachary Michael Diangelo, MD

Psychiatry Physician · Wilmington, DE

Zachary Michael Diangelo, MD is a psychiatry physician with a practice address in Wilmington, Delaware, and NPI 1073074373, issued on Mar 28, 2019. Check the license (Delaware C1-0025624, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073074373
Name
Zachary Michael Diangelo
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
C1-0025624 DE
Self-reported in NPPES; status is on the state search
Practice location
501 W 14TH St Ste 1E40, Wilmington, DE 19801
Phone
(302) 320-2100
Enumerated
Mar 28, 2019
Record last updated
Jun 13, 2023
Fax
(302) 320-2121
Medicare enrollment
Enrolled (PECOS I20230621000979); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 501 W 14TH St Ste 1E40

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jacqueline Armstrong, NPPsychiatric/Mental Health Nurse Practitioner1619504867
  2. Rachel Bahar, LCSWClinical Social Worker1154052538
  3. Robert Bahnsen, M.D.Psychiatry Physician1154697316
  4. Lauren Bauer, MSW, LCSWClinical Social Worker1417501677
  5. Fatimah Boone, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1629793807
  6. Umer Farooq, MDAddiction Medicine (Family Medicine) Physician1568975977

Verify Zachary Michael Diangelo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C1-0025624
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Delaware license search

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99% fewer Medicare Part D claims than the average psychiatry physician in 2024

13 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Zachary Diangelo13
  2. Specialty average1,000

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Christiana Care Health Services IncWilmington, DE

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

83 psychiatry physician records list a practice address in Wilmington

They are 83 of the 6,291 NPPES records with a practice address in Wilmington, and 162 psychiatry physician records in Delaware.

Other psychiatry physician records in Delaware

  1. Jane AbionaCamden, DE1447064951
  2. Omopariola Adegbola, MDWilmington, DE1255616397
  3. Nadeem Afzal, M.DNew Castle, DE1043525827
  4. Vishesh Agarwal, M.D.Wilmington, DE1609163971
  5. Anis Ahmed, MDMillsboro, DE1407877202
  6. Uzma AnsariNew Castle, DE1326778820
  7. Constantine Azarcon, M.D.Wilmington, DE1407998040
  8. Robert Bahnsen, M.D.Wilmington, DE1154697316
  9. Melody Benson, M.D.Lewes, DE1811080237
  10. Bruce Berg, M.D.Wilmington, DE1932279718

Common questions

What is Zachary Michael Diangelo, MD's NPI number?

Zachary Michael Diangelo, MD's National Provider Identifier (NPI) is 1073074373, issued on Mar 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Zachary Michael Diangelo, MD located?

The NPPES record lists a practice address at 501 W 14TH St Ste 1E40, Wilmington, DE, 19801. Phone: (302) 320-2100. Providers update this record themselves, so call before visiting.

How can I verify Zachary Michael Diangelo, MD's license?

NPPES lists Delaware license number C1-0025624, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Zachary Michael Diangelo, MD prescribe under Medicare Part D?

In 2024, Zachary Michael Diangelo, MD had 13 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.