Danielle Duffy, M.D.
NPI 1427094697 · Cardiovascular Disease Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Danielle Duffy, M.D. is a Cardiovascular Disease Physician provider in Philadelphia, PA (NPI 1427094697).
Provider details
- NPI number
- 1427094697
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD426956 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
54 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 28 | $98 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 26 | $8 |
Typical Medicare-allowed amounts for these services range $8–$98 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Evolocumabbrand: Repatha Sureclick | 86 | 17 |
| Rosuvastatin Calcium | 54 | 14 |
| Alirocumabbrand: Praluent Pen | 32 | — |
| Ezetimibe | 28 | 11 |
| Amlodipine Besylate | 26 | — |
| Metoprolol Succinate | 18 | — |
| Icosapent Ethylbrand: Vascepa | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-22
- Last updated
- 2015-03-24
Frequently asked questions
- What is Danielle Duffy's NPI number?
- Danielle Duffy's National Provider Identifier (NPI) is 1427094697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Danielle Duffy's specialty?
- Danielle Duffy is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Danielle Duffy located?
- Danielle Duffy's practice location on file with NPPES is 925 Chestnut St, Philadelphia, PA 19107-4216.
- What is Danielle Duffy's phone number?
- The practice phone number listed in the NPPES registry for Danielle Duffy is (215) 955-5050.
- Does Danielle Duffy accept Medicare?
- Danielle Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Danielle Duffy's NPI active?
- Yes — Danielle Duffy's NPI (1427094697) is active in the NPPES registry as of the last update on 2015-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.