Christopher Massari, M.D.
NPI 1700948973 · Internal Medicine Physician · Oswego, NY
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Massari, M.D. is a Internal Medicine Physician provider in Oswego, NY (NPI 1700948973).
Provider details
- NPI number
- 1700948973
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD28579 (OR)
Specialties & taxonomies
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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.
Practice location
Mailing address
Additional practice locations (2)
- 2500 Ne Neff RoadBend, OR 97701Phone: (541) 706-5811Fax: (541) 706-5867
- 1501 Ne Medical Center DrBend, OR 97701-6051Phone: (541) 382-2811
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2025-06-19
- Certified
- 2025-06-19
Frequently asked questions
- What is Christopher Massari's NPI number?
- Christopher Massari's National Provider Identifier (NPI) is 1700948973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Massari's specialty?
- Christopher Massari is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Massari located?
- Christopher Massari's practice location on file with NPPES is 110 W 6th St, Oswego, NY 13126-2598.
- What is Christopher Massari's phone number?
- The practice phone number listed in the NPPES registry for Christopher Massari is (315) 349-5511.
- Does Christopher Massari accept Medicare?
- Christopher Massari is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Massari's NPI active?
- Yes — Christopher Massari's NPI (1700948973) is active in the NPPES registry as of the last update on 2025-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.