Marta Gryniuk, MD
NPI 1538164595 · Internal Medicine Physician · Washington Court House, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marta Gryniuk, MD is a Internal Medicine Physician provider in Washington Court House, OH (NPI 1538164595).
Provider details
- NPI number
- 1538164595
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 35072645 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
21 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 · 140 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 588 | 116 |
| Atorvastatin Calcium | 520 | 169 |
| Lisinopril | 362 | 116 |
| Omeprazole | 342 | 111 |
| Levothyroxine Sodium | 302 | 88 |
| Amlodipine Besylate | 253 | 89 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,446 across 75 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
- 2005-06-16
- Last updated
- 2020-07-17
- Certified
- 2020-07-17
Frequently asked questions
- What is Marta Gryniuk's NPI number?
- Marta Gryniuk's National Provider Identifier (NPI) is 1538164595, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marta Gryniuk's specialty?
- Marta Gryniuk is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marta Gryniuk located?
- Marta Gryniuk's practice location on file with NPPES is 1510 Columbus Ave, Washington Court House, OH 43160-1899.
- What is Marta Gryniuk's phone number?
- The practice phone number listed in the NPPES registry for Marta Gryniuk is (740) 333-3333.
- Does Marta Gryniuk accept Medicare?
- Marta Gryniuk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marta Gryniuk's NPI active?
- Yes — Marta Gryniuk's NPI (1538164595) is active in the NPPES registry as of the last update on 2020-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.