John David Hammock, M.D.
Clinical Cardiac Electrophysiology Physician · Quincy, IL
John David Hammock, M.D. is a clinical cardiac electrophysiology physician with a practice address in Quincy, Illinois, and NPI 1912082975, issued on Oct 26, 2006. Check the license (Illinois 036112658, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John David Hammock
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License numbers
- 036112658 IL
40079 KY
Self-reported in NPPES; status is on the state search - Practice location
- 927 Broadway St, Quincy, IL 62301
- Phone
- (217) 224-6423
- Enumerated
- Oct 26, 2006
- Record last updated
- Nov 27, 2023
- Fax
- (217) 221-1344
- Medicare enrollment
- Enrolled (PECOS I20100422000082); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 166 in Illinois → Look up another NPI →
Also registered at 927 Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Akhtar, ANPFamily Nurse Practitioner1801216064
- Jessica Althide, APRN, FNP-CFamily Nurse Practitioner1366960130
- John Arnold, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1932184272
- Sara Baig, M.D.Cardiovascular Disease Physician1437248911
- Julie Barry, APRNFamily Nurse Practitioner1689889834
- Loretta Baustian, D.O.Pediatrics Physician1538153408
Verify John David Hammock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036112658Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
2,777 Medicare Part D claims for 390 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Eliquis386 claims
- Metoprolol Succinate323 claims
- Sotalol171 claims
- Flecainide Acetate164 claims
- Diltiazem 24hr Er (Cd)126 claims
- Xarelto116 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: $400.52
39 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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 one group practice
- Blessing HospitalHannibal, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John David Hammock among 166 clinical cardiac electrophysiology physician records in Illinois
John David Hammock, M.D. is one of 166 clinical cardiac electrophysiology physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 60% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2002 · median 2003 among the 138 with a school on file
- Record last updated2023 · 49% 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 Illinois 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 Illinois
There are 166 clinical cardiac electrophysiology physician records in Illinois.
All 166 in Illinois → Every provider in Quincy → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Rugheed Ghadban, MDO Fallon, IL 622691255644191
- Michael Hushion, MDO Fallon, IL 622691578887063
- Summit Pandat, M.D.O Fallon, IL 622691922454099
- Bernard Lim, MDDecatur, IL 625261548235856
- Abdur Rahman Fuzail AhmadPana, IL 625571053727776
- Basil Abu-El-Haija, MDSpringfield, IL 627011881825594
- Michael Barkett, M.D.Springfield, IL 627011831546134
- Ziad Issa, M.D.Springfield, IL 627011740362094
Common questions
What is John David Hammock, M.D.'s NPI number?
John David Hammock, M.D.'s National Provider Identifier (NPI) is 1912082975, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John David Hammock, M.D. located?
The NPPES record lists a practice address at 927 Broadway St, Quincy, IL, 62301. Phone: (217) 224-6423. Providers update this record themselves, so call before visiting.
How can I verify John David Hammock, M.D.'s license?
NPPES lists Illinois license number 036112658, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John David Hammock, M.D. prescribe under Medicare Part D?
In 2024, John David Hammock, M.D. had 2,777 Medicare Part D claims for 390 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.