Active NPI
Christopher Massari, M.D.
- Internal Medicine Physician
- Oswego, NY
National Provider Identifier
1700948973
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 336551
- Practice address
- 110 W 6TH St
Oswego, NY 13126-2598 - Phone
- (315) 349-5511
- Fax
- (315) 349-5785
- NPI assigned
- Dec 14, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | MD28579 | OR | |
| Hospitalist Physician | 208M00000X | MD28579 | OR | |
| Internal Medicine Physician | 207R00000X | 336551 | NY | Primary |
Addresses
Primary practice location
110 W 6TH St
Oswego, NY 13126-2598
Mailing address
110 W 6TH St
Oswego, NY 13126-2598
Phone (315) 349-5511
Other practice location 1
2500 NE Neff Road
Bend, OR 97701
Phone (541) 706-5811
Other practice location 2
1501 NE Medical Center Dr
Bend, OR 97701-6051
Phone (541) 382-2811
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 279366 | Medicaid | OR | |
| P01284390 | Other | OR | MEDICARE RAILROAD |
Other names 1
- Dr. Christopher Pineda-Massari
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: No
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- University of Vermont College of Medicine, 2002
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
110 W 6TH St
Oswego, NY 13126-2507
Phone (315) 349-5511
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 336551 | NY | MD | Internal Medicine Physician |
| MD28579 | OR | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Oswego Hospital | Current | Accepting new patients |
Locations
110 W 6th St
Oswego, NY 13126
Phone (315) 349-5511
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- General Acute Care Hospital
- Oswego, NY
- NPI 1871678458
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Oswego, NY
- NPI 1871678458
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1166054400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1750291200000",
"number": "1700948973",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "110 W 6TH ST",
"city": "OSWEGO",
"state": "NY",
"postal_code": "131262598",
"telephone_number": "315-349-5511",
"fax_number": "315-349-5785"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "110 W 6TH ST",
"city": "OSWEGO",
"state": "NY",
"postal_code": "131262598",
"telephone_number": "315-349-5511",
"fax_number": "315-349-5785"
}
],
"practiceLocations": [
{
"address_1": "2500 NE Neff Road",
"address_purpose": "LOCATION",
"city": "Bend",
"state": "OR",
"postal_code": "97701",
"country_code": "US",
"telephone_number": "541-706-5811",
"fax_number": "541-706-5867",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1501 NE Medical Center Dr",
"address_purpose": "LOCATION",
"city": "Bend",
"state": "OR",
"postal_code": "977016051",
"country_code": "US",
"telephone_number": "541-382-2811",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MASSARI",
"first_name": "CHRISTOPHER",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-12-14",
"last_updated": "2025-06-19",
"certification_date": "2025-06-19",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "OR",
"license": "MD28579",
"primary": false
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "OR",
"license": "MD28579",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NY",
"license": "336551",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "279366",
"state": "OR"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICARE RAILROAD",
"identifier": "P01284390",
"state": "OR"
}
],
"endpoints": [],
"other_names": [
{
"first_name": "CHRISTOPHER",
"last_name": "PINEDA-MASSARI",
"prefix": "DR.",
"credential": "M.D.",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Oswego, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.