John Hammock, M.D.
NPI 1912082975 · Clinical Cardiac Electrophysiology Physician · Quincy, IL
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hammock, M.D. is a Clinical Cardiac Electrophysiology Physician provider in Quincy, IL (NPI 1912082975).
Provider details
- NPI number
- 1912082975
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 40079 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
19 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
5,088 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 | 1,167 | $8 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 837 | $24 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 773 | $28 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System, Remote Up to 30 Days93297 | 503 | $24 |
| Evaluation of Single, Dual, Or Multiple Lead Implantable Defibrillator System, Remote Up to 90 Days93295 | 284 | $35 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 386 | 70 |
| Metoprolol Succinate | 323 | 81 |
| Sotalol Hclbrand: Sotalol | 171 | 42 |
| Flecainide Acetate | 164 | 44 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) | 126 | 24 |
| Rivaroxabanbrand: Xarelto | 116 | 20 |
| Carvedilol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$401 across 39 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
- 2006-10-26
- Last updated
- 2023-11-27
- Certified
- 2020-10-11
Frequently asked questions
- What is John Hammock's NPI number?
- John Hammock's National Provider Identifier (NPI) is 1912082975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hammock's specialty?
- John Hammock is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Hammock located?
- John Hammock's practice location on file with NPPES is 927 Broadway St, Quincy, IL 62301-2719.
- What is John Hammock's phone number?
- The practice phone number listed in the NPPES registry for John Hammock is (217) 224-6423.
- Does John Hammock accept Medicare?
- John Hammock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hammock's NPI active?
- Yes — John Hammock's NPI (1912082975) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.