John Harding, M.D.
NPI 1144218835 · Clinical Cardiac Electrophysiology Physician · Doylestown, PA
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Harding, M.D. is a Clinical Cardiac Electrophysiology Physician provider in Doylestown, PA (NPI 1144218835).
Provider details
- NPI number
- 1144218835
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD421490 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3,055 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 782 | $8 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 563 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 387 | $131 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 205 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 158 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 280 | 86 |
| Apixabanbrand: Eliquis | 258 | 83 |
| Rivaroxabanbrand: Xarelto | 130 | 32 |
| Atorvastatin Calcium | 106 | 32 |
| Furosemide | 105 | 35 |
| Lisinopril | 97 | 29 |
| Carvedilol | 85 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,731 across 14 records (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
- 2005-10-07
- Last updated
- 2023-03-03
- Certified
- 2023-03-03
Frequently asked questions
- What is John Harding's NPI number?
- John Harding's National Provider Identifier (NPI) is 1144218835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Harding's specialty?
- John Harding is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Harding located?
- John Harding's practice location on file with NPPES is 599 W State St, Doylestown, PA 18901-2567.
- What is John Harding's phone number?
- The practice phone number listed in the NPPES registry for John Harding is (267) 893-6800.
- Does John Harding accept Medicare?
- John Harding is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Harding's NPI active?
- Yes — John Harding's NPI (1144218835) is active in the NPPES registry as of the last update on 2023-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.