John W. Ashby, M.D.
Physical Medicine & Rehabilitation Physician · Wilmington, DE
John W. Ashby, M.D. is a physical medicine & rehabilitation physician with a practice address in Wilmington, Delaware, and NPI 1740229046, issued on Jun 5, 2006. Check the license (Delaware C1-0009237, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- John W. Ashby
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License numbers
- C1-0009237 DE
MA55332 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Pennsylvania Ave, Wilmington, DE 19806
- Phone
- (302) 439-3063
- Enumerated
- Jun 5, 2006
- Record last updated
- Jan 30, 2025
- Fax
- (302) 439-3372
- Medicare enrollment
- Enrolled (PECOS I20151019002018); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 64 in Delaware → Look up another NPI →
Also registered at 1600 Pennsylvania Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Frederick Gooding, M.D.Specialist1255377180
- Ian Lonergan, D.O.Plastic and Reconstructive Surgery Physician1174795744
- Lynn Testaiuti, RNRegistered Nurse1225412810
Verify John W. Ashby 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 C1-0009237Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regional Orthopedic Professional AssociationCherry Hill, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John W. Ashby among 64 physical medicine & rehabilitation physician records in Delaware
John W. Ashby, M.D. is one of 64 physical medicine & rehabilitation physician records with a practice address in Delaware. 52% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 66% newer
- In a Medicare fileYes · 52% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated1986 · median 2007 among the 28 with a school on file
- Record last updated2025 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Delaware
There are 64 physical medicine & rehabilitation physician records in Delaware.
All 64 in Delaware → Every provider in Wilmington → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Ross Ufberg, M.D.Wilmington, DE 198061609058155
- James Bonner, M.D.Wilmington, DE 198051184642407
- Jerrald Chen, M.D.Wilmington, DE 198051356760714
- Amishi Dharia, D.O.Wilmington, DE 198071538457338
- Elizabeth Diaz, PTAWilmington, DE 198051235088592
- Reema Malhotra, MDWilmington, DE 198051679522585
- Binduben Patel, M.D.Wilmington, DE 198051164517728
- David Davidson, DPTWilmington, DE 198081316258577
Common questions
What is John W. Ashby, M.D.'s NPI number?
John W. Ashby, M.D.'s National Provider Identifier (NPI) is 1740229046, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John W. Ashby, M.D. located?
The NPPES record lists a practice address at 1600 Pennsylvania Ave, Wilmington, DE, 19806. Phone: (302) 439-3063. Providers update this record themselves, so call before visiting.
How can I verify John W. Ashby, M.D.'s license?
NPPES lists Delaware license number C1-0009237, 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.
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.