John D. Harding, M.D.
Clinical Cardiac Electrophysiology Physician · Doylestown, PA
John D. Harding, M.D. is a clinical cardiac electrophysiology physician with a practice address in Doylestown, Pennsylvania, and NPI 1144218835, issued on Oct 7, 2005. Check the license (Pennsylvania MD421490, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- John D. Harding
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- MD421490 PA
Self-reported in NPPES; status is on the state search - Practice location
- 599 W State St, Doylestown, PA 18901
- Phone
- (267) 893-6800
- Enumerated
- Oct 7, 2005
- Record last updated
- Mar 3, 2023
- Fax
- (267) 893-6820
- Medicaid ID
- 10823850003 PA
- Medicare enrollment
- Enrolled (PECOS I20050721000750); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 205 in Pennsylvania → Look up another NPI →
Also registered at 599 W State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David Boland, M.D.Interventional Cardiology Physician1235123886
- Kimberly Bruzas, M.S.Audiologist1164640983
- Alan Chang, MDGastroenterology Physician1912992330
- Asad Choudhury, MDHospitalist Physician1508325747
Verify John D. Harding in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD421490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
2,041 Medicare Part D claims for 274 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Metoprolol Succinate280 claims
- Eliquis258 claims
- Xarelto130 claims
- Atorvastatin Calcium106 claims
- Furosemide105 claims
- Lisinopril97 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: $1,730.91
14 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Clinical Specialty AssociatesDoylestown, PA
- Via AffiliatesDoylestown, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John D. Harding among 205 clinical cardiac electrophysiology physician records in Pennsylvania
John D. Harding, M.D. is one of 205 clinical cardiac electrophysiology physician records with a practice address in Pennsylvania. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 96% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2000 · median 2001 among the 168 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in Pennsylvania
There are 205 clinical cardiac electrophysiology physician records in Pennsylvania.
All 205 in Pennsylvania → Every provider in Doylestown → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Irfan Khurram, M.D.Doylestown, PA 189011538229612
- Robert Sangrigoli, MDDoylestown, PA 189011619976768
- Stephen Sloan, MD, FACCDoylestown, PA 189011932140621
- Philip Wiener, D.O.Doylestown, PA 189011922481092
- Scott Burke, MDNewtown, PA 189401164488987
- Michael Rozengarten, MDNewtown, PA 189401699764498
- Robert Kleiman, M.D.Bala Cynwyd, PA 190041902114788
- Matthew Hillis, M.D.Broomall, PA 190081902014046
Common questions
What is John D. Harding, M.D.'s NPI number?
John D. Harding, M.D.'s National Provider Identifier (NPI) is 1144218835, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John D. Harding, M.D. located?
The NPPES record lists a practice address at 599 W State St, Doylestown, PA, 18901. Phone: (267) 893-6800. Providers update this record themselves, so call before visiting.
How can I verify John D. Harding, M.D.'s license?
NPPES lists Pennsylvania license number MD421490, 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 John D. Harding, M.D. prescribe under Medicare Part D?
In 2024, John D. Harding, M.D. had 2,041 Medicare Part D claims for 274 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. 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.
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.