Doctor profile · Federal record

Dr. John Hammock, M.D.

Clinical Cardiac Electrophysiology Physician (CMS: Cardiac Electrophysiology) · Internal Medicine Physician · Cardiovascular Disease Physician · Hospitalist Physician · Quincy, IL

  • NPI 1912082975
  • Accepts Medicare
  • 24 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
927 Broadway St, Suite 200
Quincy, IL 623012719
(217) 224-6423
fax (217) 221-1344
Mailing address
927 Broadway St Ste 230
Quincy, IL 623012749

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
November 27, 2023
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207RC0001X — NUCC code
State licenses (2)
Illinois #036112658 · Kentucky #40079

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912082975. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,863
Distinct HCPCS
10
Medicare allowed
$246,496
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 1,140 696 $8
93294 Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 698 270 $30
93298 Evaluation of cardiac rhythm monitor system, remote up to 30 days 671 108 $26
93297 Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days 600 107 $26
93295 Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 300 112 $36
99214 Established patient office or other outpatient visit, 30-39 minutes 228 167 $97
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 205 200 $14
93288 Evaluation of single, dual, multiple lead or leadless pacemaker system 190 181 $20
99213 Established patient office or other outpatient visit, 20-29 minutes 147 124 $65
93288 Evaluation of single, dual, multiple lead or leadless pacemaker system 83 73 $52

In context: peer comparison

Among 1 peers in this city , average services per provider: 173. This provider delivers 28× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$401
Transactions
39
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 9 $199.08
Biosense Webster, Inc. 28 $135.73
ABIOMED 1 $51.42
SANOFI-AVENTIS U.S. LLC 1 $14.29

By nature of payment

Food and Beverage
$401

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,814
Patients
494
Total drug cost
$328,863
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 283 67 $232,257
Metoprolol Succinate Generic 254 76 $4,586
Sotalol (Sotalol Hcl) Brand 208 44 $3,125
Flecainide Acetate Generic 135 36 $6,231
Carvedilol Generic 133 24 $853
Amiodarone Hcl Generic 130 47 $2,008
Amlodipine Besylate Generic 102 20 $448
Furosemide Generic 82 26 $496
Pantoprazole Sodium Generic 75 52 $1,145
Dofetilide Generic 74 14 $13,209

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Hammock's medical specialty?
Dr. John Hammock practices Clinical Cardiac Electrophysiology Physician in Quincy, IL.
Where does Dr. John Hammock practice?
Dr. John Hammock practices at 927 Broadway St, Quincy, IL 623012719. Office phone: 2172246423.
What is Dr. John Hammock's NPI?
Dr. John Hammock's National Provider Identifier (NPI) is 1912082975, issued by NPPES.
Does Dr. John Hammock accept Medicare assignment?
Yes. Dr. John Hammock accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Hammock commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (HCPCS 93294); Evaluation of cardiac rhythm monitor system, remote up to 30 days (HCPCS 93298). Source: CMS Medicare Physician & Other Practitioners file.