NPPES file of Aug 9, 2026

Danielle Duffy, M.D.

Cardiovascular Disease Physician · Philadelphia, PA

Danielle Duffy, M.D. is a cardiovascular disease physician with a practice address in Philadelphia, Pennsylvania, and NPI 1427094697, issued on Jun 22, 2006. Check the license (Pennsylvania MD426956, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427094697
Name
Danielle Duffy
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
MD426956 PA
Self-reported in NPPES; status is on the state search
Practice location
925 Chestnut St, Philadelphia, PA 19107
Phone
(215) 955-5050
Enumerated
Jun 22, 2006
Record last updated
Mar 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(215) 503-5650
Medicaid IDs
0076198 NJ
101498220 PA
Medicare enrollment
Enrolled (PECOS I20050824000392); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2002
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.
Download card Updates feed

8 nearest cardiovascular disease physician records → All 1,476 in Pennsylvania → Look up another NPI →

Also registered at 925 Chestnut St

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

  1. Maysa Abu-Khalaf, MDMedical Oncology Physician1194713495
  2. Asim AhmedStudent in an Organized Health Care Education/Training Program1669319059
  3. Seyfettin Alpdogan, MDMedical Oncology Physician1558538991
  4. Anjali Avadhani, MDHematology & Oncology Physician1194887059
  5. Rita Axelrod, M.D.Medical Oncology Physician1881616126
  6. Donald Beahm, MDOtolaryngology Physician1245423714

Verify Danielle Duffy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD426956    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 Pennsylvania 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

87% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

409 Medicare Part D claims for 40 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Danielle Duffy409
  2. Specialty average3,078

Most prescribed

  1. Repatha Sureclick86 claims
  2. Rosuvastatin Calcium54 claims
  3. Praluent Pen32 claims
  4. Ezetimibe28 claims
  5. Amlodipine Besylate26 claims
  6. Metoprolol Succinate18 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: $52.14

1 payment: food and beverage; the largest payer was Janssen Research & Development, LLC. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Danielle Duffy$52.14
  2. Specialty average$3,819.56

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. Jefferson University PhysiciansPhiladelphia, PA

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

Danielle Duffy among 1,476 cardiovascular disease physician records in Pennsylvania

Danielle Duffy, M.D. is one of 1,476 cardiovascular disease physician records with a practice address in Pennsylvania. 85% 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 20% of them.

  • NPI issued2006 · 20% of these records are older, 45% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2002 · median 2000 among the 1,003 with a school on file
  • Record last updated2015 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Pennsylvania

There are 1,476 cardiovascular disease physician records in Pennsylvania.

All 1,476 in Pennsylvania → Every provider in Philadelphia → Cardiovascular Disease Physician nationwide →

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Sung-Hae Cho, MDPhiladelphia, PA 191071568494375
  2. Ira Cohen, MDPhiladelphia, PA 191071972508539
  3. John Fontaine, MDPhiladelphia, PA 191071811945017
  4. Paulina Gorodin, MDPhiladelphia, PA 191071609821446
  5. Syed Hasni, MDPhiladelphia, PA 191071477594083
  6. Anish Koka, MDPhiladelphia, PA 191071740236124
  7. Peter Kurnik, MDPhiladelphia, PA 191071396703716
  8. William Kussmaul, MDPhiladelphia, PA 191071457325813

Common questions

What is Danielle Duffy, M.D.'s NPI number?

Danielle Duffy, M.D.'s National Provider Identifier (NPI) is 1427094697, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Danielle Duffy, M.D. located?

The NPPES record lists a practice address at 925 Chestnut St, Philadelphia, PA, 19107. Phone: (215) 955-5050. Providers update this record themselves, so call before visiting.

How can I verify Danielle Duffy, M.D.'s license?

NPPES lists Pennsylvania license number MD426956, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Danielle Duffy, M.D. prescribe under Medicare Part D?

In 2024, Danielle Duffy, M.D. had 409 Medicare Part D claims for 40 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.