John Guzek, MD
NPI 1861460545 · Internal Medicine Physician · Scranton, PA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Guzek, MD is a Internal Medicine Physician provider in Scranton, PA (NPI 1861460545).
Provider details
- NPI number
- 1861460545
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD022387E (PA)
Specialties & taxonomies
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
731 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) |
|---|---|---|
| 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 | 330 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 312 | $122 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 34 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $87 |
| Administration of Influenza Virus VaccineG0008 | 24 | $31 |
Typical Medicare-allowed amounts for these services range $6–$122 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 84 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 206 | 72 |
| Atorvastatin Calcium | 116 | 39 |
| Omeprazole | 110 | 37 |
| Semaglutidebrand: Ozempic | 107 | 23 |
| Tirzepatidebrand: Mounjaro | 95 | 30 |
| Metoprolol Succinate | 94 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,612 across 154 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
- 2006-03-09
- Last updated
- 2014-01-08
Frequently asked questions
- What is John Guzek's NPI number?
- John Guzek's National Provider Identifier (NPI) is 1861460545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Guzek's specialty?
- John Guzek is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Guzek located?
- John Guzek's practice location on file with NPPES is 700 Quincy Ave, Scranton, PA 18510-1798.
- What is John Guzek's phone number?
- The practice phone number listed in the NPPES registry for John Guzek is (866) 519-0457.
- Does John Guzek accept Medicare?
- John Guzek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Guzek's NPI active?
- Yes — John Guzek's NPI (1861460545) is active in the NPPES registry as of the last update on 2014-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.