Dr. Christopher Massari , MD
Internal Medicine • Oswego, NY
Professional Overview & Biography Verified Profile Summary
Dr. Christopher Massari, MD is a certified Internal Medicine practicing in Oswego, NY. With approximately 24 years of clinical experience since graduating from University Of Vermont College Of Medicine in 2002, Dr. Massari delivers high-quality medical care to the local community at 110 W 6TH ST.
Dr. Massari is affiliated with Oswego Hospital and accepts Medicare assignment.
Frequently performed procedures and clinical services include initial hospital care with moderate level of medical decision making, if using time, at least, hospital observation care, prolonged inpatient or observation hospital service, first hour. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
110 W 6th St
Oswego, NY 131262598
Medicare Profile & Education
University Of Vermont College Of Medicine
2002
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Internal Medicine in Oswego, NY
Practicing in Oswego, NY (12979 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
|
28 | 28 | $635.00 | $190.12 |
|
99220
Hospital observation care, typically 70 minutes
|
25 | 25 | $581.00 | $174.14 |
Medical Specialties & State Licenses
CMS Verified: 2025-06-19NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 208M00000X
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Oswego Hospital
110 W 6th St, Oswego, NY 131262507
Phone: 3153495511
Secondary Practice Locations
2500 Ne Neff Road
Bend, OR 97701
Phone: 5417065811
1501 Ne Medical Center Dr
Bend, OR 977016051
Phone: 5413822811
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Emergency Medicine
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Nurse Practitioner - Adult Health
Nurse Practitioner
Dietitian, Registered
Registered Dietitian
Anesthesiology
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 110 W 6TH ST, OSWEGO, NY 131262598 (Tel: 3153495511)
Registered at 110 W 6TH ST, OSWEGO, NY 131262598 (Tel: 3153495511)
Internal Medicine (License #MD28579 in OR)
Hospitalist (License #MD28579 in OR)
Registered at 2500 NE NEFF ROAD, BEND, OR 97701 (Tel: 5417065811)
NPI status registered as active in NPPES database
Registered at 1501 NE MEDICAL CENTER DR, BEND, OR 977016051 (Tel: 5413822811)
Registered at 1501 NE MEDICAL CENTER DR, BEND, OR 977016051 (Tel: 5413822811)
Recorded as CHRISTOPHER MASSARI, M.D.
Internal Medicine (License #MD28579 in OR)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
110 W 6th St
Oswego, NY 131262598
Phone: 3153495511
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.