John Austin Defrate, M.D.
Neurology Physician · New Castle, DE
John Austin Defrate, M.D. is a neurology physician with a practice address in New Castle, Delaware, and NPI 1346266863, issued on Jul 15, 2006. Check the license (Delaware CL0005148, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- John Austin Defrate
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- CL0005148 DE
MD061195L PA
Self-reported in NPPES; status is on the state search - Practice location
- 575 S Dupont Hwy, New Castle, DE 19720
- Phone
- (302) 328-3330
- Enumerated
- Jul 15, 2006
- Record last updated
- Jul 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (302) 328-9336
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 65 in Delaware → Look up another NPI →
Also registered at 575 S Dupont Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christiana Ajakaye, NPPsychiatric/Mental Health Nurse Practitioner1528947801
- Michael Kolodgie, MSN, PMHNP, B-CPsychiatric/Mental Health Nurse Practitioner1841852357
- Tracee SherlockPsychiatric/Mental Health Nurse Practitioner1093326183
- Gisele Smith, M.D.Psychiatry Physician1194894204
Verify John Austin Defrate in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license CL0005148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average neurology physician in 2024
27 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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.
John Austin Defrate among 65 neurology physician records in Delaware
John Austin Defrate, M.D. is one of 65 neurology physician records with a practice address in Delaware. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2008 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Delaware
There are 65 neurology physician records in Delaware.
All 65 in Delaware → Every provider in New Castle → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Muhammad Afzal, MDNewark, DE 197181780248112
- Narsis Aminian, MDNewark, DE 197181710416870
- Jennifer Creed, M.D.Newark, DE 197181508109430
- Kimberly Gannon, MD, PHDNewark, DE 197181831482165
- Swapnil Khose, MBBSNewark, DE 197181083298335
- Caitlin Massone, MDNewark, DE 197181235429317
- Michael Moussouttas, MDNewark, DE 197181912907197
- Ashwin Reddi, MDNewark, DE 197181306461355
Common questions
What is John Austin Defrate, M.D.'s NPI number?
John Austin Defrate, M.D.'s National Provider Identifier (NPI) is 1346266863, issued on Jul 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Austin Defrate, M.D. located?
The NPPES record lists a practice address at 575 S Dupont Hwy, New Castle, DE, 19720. Phone: (302) 328-3330. Providers update this record themselves, so call before visiting.
How can I verify John Austin Defrate, M.D.'s license?
NPPES lists Delaware license number CL0005148, 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 John Austin Defrate, M.D. prescribe under Medicare Part D?
In 2024, John Austin Defrate, M.D. had 27 Medicare Part D claims; the average among neurology physician prescribers was 1,370. 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.