John Frederick Decarli, D.O.
Internal Medicine Physician · Wilmington, DE
John Frederick Decarli, D.O. is an internal medicine physician with a practice address in Wilmington, Delaware, and NPI 1063404044, issued on Aug 17, 2005. Check the license (Delaware C2-0002853, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- John Frederick Decarli
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C2-0002853 DE
Self-reported in NPPES; status is on the state search - Practice location
- 700 W Lea Blvd, Wilmington, DE 19802
- Phone
- (302) 761-9620
- Enumerated
- Aug 17, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 0000022903 DE
- Medicare enrollment
- Enrolled (PECOS I20221202001010); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1985
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 700 W Lea Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Desroches, PTAPhysical Therapy Assistant1821233008
- Cynthia Guy, LPCSocial Worker1225708134
- Amy Hitchens, FNPFamily Nurse Practitioner1356730311
- Francis Mase, M.D.Pediatrics Physician1003961020
- Margaret Proctor, M.D.Pediatrics Physician1730251257
Verify John Frederick Decarli 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 C2-0002853Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
125 Medicare Part D claims for 68 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Gentamicin Sulfate39 claims
- Doxycycline Hyclate19 claims
- Mupirocin11 claims
- Santyl11 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.
Industry payments in 2024: $199.46
9 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Union Hospital OF Cecil CountyElkton, MD · Acute Care Hospitals4 of 5 stars
- Christiana Care Health Services IncNewark, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
John Frederick Decarli among 600 internal medicine physician records in Delaware
John Frederick Decarli, D.O. is one of 600 internal medicine physician records with a practice address in Delaware. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1985 · median 2008 among the 414 with a school on file
- Record last updated2007 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 internal medicine physician records list a practice address in Wilmington
They are 107 of the 6,291 NPPES records with a practice address in Wilmington, and 600 internal medicine physician records in Delaware.
All 600 in Delaware → Every provider in Wilmington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mikelle Phillips, MDWilmington, DE 198021184686958
- Erik Underhill, M.D.Wilmington, DE 198021881767382
- Beenish Ahmed, MDWilmington, DE 198011346636172
- Jessica An, MDWilmington, DE 198011740867035
- Justin Eldridge, M.D.Wilmington, DE 198011295937365
- Neal Emery, MDWilmington, DE 198011316434665
- Christine Gallati, MDWilmington, DE 198011215270665
- Jerry Gluckman, MDWilmington, DE 198031629070370
Common questions
What is John Frederick Decarli, D.O.'s NPI number?
John Frederick Decarli, D.O.'s National Provider Identifier (NPI) is 1063404044, issued on Aug 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Frederick Decarli, D.O. located?
The NPPES record lists a practice address at 700 W Lea Blvd, Wilmington, DE, 19802. Phone: (302) 761-9620. Providers update this record themselves, so call before visiting.
How can I verify John Frederick Decarli, D.O.'s license?
NPPES lists Delaware license number C2-0002853, 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 Frederick Decarli, D.O. prescribe under Medicare Part D?
In 2024, John Frederick Decarli, D.O. had 125 Medicare Part D claims for 68 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.