Physician Profile
Unclaimed ProfileAbout DUFFY
Based in Philadelphia, PA, Danielle Duffy, M.D. is listed in the NPI registry under cardiovascular disease (cardiology). Danielle graduated from Perelman School of Med at the University of Pennsylvania in 2002. Danielle is also listed as specialising in cardiovascular disease.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Duffy specialise in?
Dr. Duffy is a cardiovascular disease (cardiology) in Philadelphia, PA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where is Dr. Duffy located?
Dr. Duffy is listed at 925 CHESTNUT ST MEZZANINE, JEFFERSON HEART INSTITUTE, Philadelphia, PA 19107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Duffy's phone number?
The number on file is (215) 955-5050. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Duffy?
Dr. Duffy's National Provider Identifier is 1427094697. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Duffy go to medical school?
Dr. Duffy attended Perelman School of Med at the University of Pennsylvania, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Duffy have?
Dr. Duffy has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Duffy do most often?
According to Medicare billing data, Dr. Duffy provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Duffy's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Duffy. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (215) 955-5050
- Email not available
Practice Locations
925 CHESTNUT ST MEZZANINE, JEFFERSON HEART INSTITUTE
Philadelphia, PA 19107
Procedures Most Often Billed to Medicare
54 services · 42 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
26 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
28 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiovascular diseases at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiovascular diseases in Philadelphia 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Perelman School of Med at the University of Pennsylvania 7
Other providers in the same specialty who trained at the same institution.
Class of 2002 at Perelman School of Med at the University of Pennsylvania 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in PA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.