Marjorie Ketzak, DO
NPI 1780684159 · Family Medicine Physician · Oxford, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marjorie Ketzak, DO is a Family Medicine Physician provider in Oxford, NY (NPI 1780684159).
Provider details
- NPI number
- 1780684159
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 2200SG (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 69 | 18 |
| Gabapentin | 67 | 13 |
| Furosemide | 60 | 21 |
| Pantoprazole Sodium | 60 | 17 |
| Levothyroxine Sodium | 56 | 16 |
| Metoprolol Tartrate | 53 | 14 |
| Atorvastatin Calcium | 48 |
Practice location
Mailing address
Additional practice locations (1)
- 29 N Chenango StSuite aGreene, NY 13778-1154Phone: (607) 875-4334Fax: (888) 603-9093
Registry dates
- Enumerated
- 2005-07-28
- Last updated
- 2020-11-27
- Certified
- 2020-11-27
Frequently asked questions
- What is Marjorie Ketzak's NPI number?
- Marjorie Ketzak's National Provider Identifier (NPI) is 1780684159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marjorie Ketzak's specialty?
- Marjorie Ketzak is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marjorie Ketzak located?
- Marjorie Ketzak's practice location on file with NPPES is 4207 State Highway 220, Oxford, NY 13830-4305.
- What is Marjorie Ketzak's phone number?
- The practice phone number listed in the NPPES registry for Marjorie Ketzak is (607) 843-3140.
- Does Marjorie Ketzak accept Medicare?
- Marjorie Ketzak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marjorie Ketzak's NPI active?
- Yes — Marjorie Ketzak's NPI (1780684159) is active in the NPPES registry as of the last update on 2020-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.