Johanna Foster Detwiler, PA-C
Physician Assistant · Wilmington, DE
Johanna Foster Detwiler, PA-C is a physician assistant with a practice address in Wilmington, Delaware, and NPI 1578072021, issued on Sep 28, 2017. Check the license (Delaware C5-0001175, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Johanna Foster Detwiler
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- C5-0001175 DE
Self-reported in NPPES; status is on the state search - Practice location
- 2722 Concord Pike, Wilmington, DE 19803
- Phone
- (302) 477-1406
- Enumerated
- Sep 28, 2017
- Record last updated
- Oct 4, 2024
- Medicare enrollment
- Enrolled (PECOS I20171113001777); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 695 in Delaware → Look up another NPI →
Also registered at 2722 Concord Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah McDermott, FNP-CFamily Nurse Practitioner1871141531
Verify Johanna Foster Detwiler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license C5-0001175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average physician assistant in 2024
27 Medicare Part D claims, against an average of 830 among the 101,058 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.
Bills Medicare through 2 group practices
- Christiana Care Quality PartnersNewark, DE
- Christine Meyer MD LLCExton, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johanna Foster Detwiler among 695 physician assistant records in Delaware
Johanna Foster Detwiler, PA-C is one of 695 physician assistant records with a practice address in Delaware. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 42% of them.
- NPI issued2017 · 42% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2019 among the 462 with a school on file
- Record last updated2024 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
138 physician assistant records list a practice address in Wilmington
They are 138 of the 6,291 NPPES records with a practice address in Wilmington, and 695 physician assistant records in Delaware.
All 695 in Delaware → Every provider in Wilmington → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Erica Abdallah, PAWilmington, DE 198031316042211
- Karen Banker, PA-CWilmington, DE 198031124117361
- Heather Claar, PA-CWilmington, DE 198031396837126
- Susan Dubowy, PA-CWilmington, DE 198031841229994
- Linda Duffy, PA-CWilmington, DE 198031831280114
- Christopher Giaquinto, PA-CWilmington, DE 198031316039282
- Lauren Gilbert, PA-CWilmington, DE 198031336128347
- Cara Giordano, PA-CWilmington, DE 198031225120199
Common questions
What is Johanna Foster Detwiler, PA-C's NPI number?
Johanna Foster Detwiler, PA-C's National Provider Identifier (NPI) is 1578072021, issued on Sep 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Johanna Foster Detwiler, PA-C located?
The NPPES record lists a practice address at 2722 Concord Pike, Wilmington, DE, 19803. Phone: (302) 477-1406. Providers update this record themselves, so call before visiting.
How can I verify Johanna Foster Detwiler, PA-C's license?
NPPES lists Delaware license number C5-0001175, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Johanna Foster Detwiler, PA-C prescribe under Medicare Part D?
In 2024, Johanna Foster Detwiler, PA-C had 27 Medicare Part D claims; the average among physician assistant prescribers was 830. 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.