John Marichak
NPI 1144903527 · Physician Assistant · Susquehanna, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Marichak is a Physician Assistant provider in Susquehanna, PA (NPI 1144903527).
Provider details
- NPI number
- 1144903527
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- MA064769 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 100 | 91 |
| Methylprednisolone | 60 | 56 |
| Doxycycline Monohydrate | 52 | 43 |
| Prednisone | 38 | 34 |
| Ciprofloxacin Hcl | 19 | 19 |
| Cephalexin | 16 | 16 |
| Doxycycline Hyclate | 16 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$195 across 11 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
- 2023-08-10
- Last updated
- 2023-08-10
- Certified
- 2023-08-10
Frequently asked questions
- What is John Marichak's NPI number?
- John Marichak's National Provider Identifier (NPI) is 1144903527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marichak's specialty?
- John Marichak is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Marichak located?
- John Marichak's practice location on file with NPPES is 2872 Turnpike St, Susquehanna, PA 18847-2771.
- What is John Marichak's phone number?
- The practice phone number listed in the NPPES registry for John Marichak is (570) 853-3135.
- Does John Marichak accept Medicare?
- John Marichak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Marichak's NPI active?
- Yes — John Marichak's NPI (1144903527) is active in the NPPES registry as of the last update on 2023-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.