NPPES file of Aug 9, 2026

John P. Piper, M.D.

Infectious Disease Physician · Newark, DE

John P. Piper, M.D. is an infectious disease physician with a practice address in Newark, Delaware, and NPI 1083775654, issued on Dec 13, 2006. Check the license (Delaware C10003878, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083775654
Name
John P. Piper
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
C10003878 DE
Self-reported in NPPES; status is on the state search
Practice location
C78 80 Omega Drive, Newark, DE 19713
Phone
(302) 368-2883
Enumerated
Dec 13, 2006
Record last updated
Jan 16, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(302) 368-2892
Medicaid ID
0000411301 DE
Medicare enrollment
Enrolled (PECOS I20111213000291); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1983
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 C78 80 Omega Drive

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

  1. Michelle Bell, P.A.-CPhysician Assistant1508112608
  2. David Cohen, M.D.Infectious Disease Physician1306907902
  3. Anand Panwalker, M.D.Infectious Disease Physician1609937267

Verify John P. Piper 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 C10003878
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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85% fewer Medicare Part D claims than the average infectious disease physician in 2024

103 Medicare Part D claims for 15 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. John Piper103
  2. Specialty average689

Most prescribed

  1. Potassium Chloride27 claims
  2. Sodium Chloride27 claims
  3. Cefazolin Sodium11 claims
  4. Cefepime Hcl11 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $46.45

2 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Piper$46.45
  2. Specialty average$4,362.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Infectious Disease Associates PANewark, DE

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

John P. Piper among 32 infectious disease physician records in Delaware

John P. Piper, M.D. is one of 32 infectious disease physician records with a practice address in Delaware. 91% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 53% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated1983 · median 2002 among the 28 with a school on file
  • Record last updated2013 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Delaware

There are 32 infectious disease physician records in Delaware.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Alfred Bacon, MDNewark, DE 197131902967508
  2. David Cohen, M.D.Newark, DE 197131306907902
  3. Chad Duffalo, M.D.Newark, DE 197131639339484
  4. Wesley Emmons, M.D.Newark, DE 197131770692782
  5. Maya Gupta, M.D.Newark, DE 197131811011646
  6. Stephanie Lee, MDNewark, DE 197131912068529
  7. James Ley, M.D.Newark, DE 197131376652396
  8. Tresa Mascarenhas, MBBSNewark, DE 197131477846079

Common questions

What is John P. Piper, M.D.'s NPI number?

John P. Piper, M.D.'s National Provider Identifier (NPI) is 1083775654, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John P. Piper, M.D. located?

The NPPES record lists a practice address at C78 80 Omega Drive, Newark, DE, 19713. Phone: (302) 368-2883. Providers update this record themselves, so call before visiting.

How can I verify John P. Piper, M.D.'s license?

NPPES lists Delaware license number C10003878, 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 P. Piper, M.D. prescribe under Medicare Part D?

In 2024, John P. Piper, M.D. had 103 Medicare Part D claims for 15 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is John P. Piper, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.