Are you Danielle Duffy, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 925 Chestnut St, Mezzanine, Jefferson Heart Institute, Philadelphia, PA 19107
About Dr. Duffy
Based in Philadelphia, PA, Danielle Duffy, M.D. is listed in the NPI registry under cardiovascular disease. Danielle graduated from Perelman School of Med at the University of Pennsylvania in 2002. Medicare claims data shows Danielle provided 54 services to 42 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only. NPI 1427094697 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (215) 955-5050
- Email not available
Practice Locations
925 CHESTNUT ST MEZZANINE, JEFFERSON HEART INSTITUTE
Philadelphia, PA 19107
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Most searched procedures
Office and noninvasive testing
Advanced imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
54 services · 42 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
26 | Less often than most peers in Cardiovascular Disease |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
28 | Less often than most peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiologists at this location 5
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 cardiologists in Philadelphia 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Perelman School of Med at the University of Pennsylvania 8
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.
Common questions
What does Danielle Duffy specialize in?
Danielle Duffy is a cardiologist in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
Where is Danielle Duffy located?
Danielle 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 Danielle Duffy's phone number?
The number on file is (215) 955-5050. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Danielle Duffy?
Danielle 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 Danielle Duffy train?
Danielle 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 Danielle Duffy have?
Danielle Duffy has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What does Danielle Duffy do most often?
According to Medicare billing data, Danielle 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 Danielle Duffy's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Danielle Duffy. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.