Dr. Christopher Michael Brennan , MD
Internal Medicine • West Islip, NY
Professional Overview & Biography Verified Profile Summary
Dr. Christopher Brennan, MD is a certified Internal Medicine practicing in West Islip, NY. With approximately 19 years of clinical experience since completing medical education in 2007, Dr. Brennan delivers high-quality medical care to the local community at 1000 MONTAUK HIGHWAY.
Dr. Brennan is affiliated with Southwest Suffolk Medical Pc and accepts Medicare assignment.
Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
1000 Montauk Highway
Hospitalist Department 3rd Floor
West Islip, NY 11795
Medicare Profile & Education
Other
2007
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Internal Medicine in West Islip, NY
Practicing in West Islip, 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 |
|---|---|---|---|---|
|
99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
|
581 | 196 | $264.00 | $87.42 |
|
99239
Hospital discharge day management, more than 30 minutes
|
155 | 150 | $383.00 | $126.60 |
|
99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
|
24 | 21 | $396.00 | $131.66 |
Medical Specialties & State Licenses
CMS Verified: 2025-05-19NUCC 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: 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.
Hospital & Practice Group Affiliations
Southwest Suffolk Medical Pc
1000 Montauk Hwy, West Islip, NY 117954927
Phone: 6313763000
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 1000 MONTAUK HIGHWAY, HOSPITALIST DEPARTMENT 3RD FLOOR, WEST ISLIP, NY 11795 (Tel: 6313763610)
Registered at 1000 MONTAUK HIGHWAY, HOSPITALIST OFFICE, WEST ISLIP, NY 11795 (Tel: 6313763610)
Internal Medicine (License #MD13459 in RI)
NPI status registered as active in NPPES database
Registered at 825 CHALKSTONE AVE, PROVIDENCE, RI 029084728 (Tel: 4014562000)
Registered at 825 CHALKSTONE AVE, PROVIDENCE, RI 029084728 (Tel: 4014562000)
Recorded as CHRISTOPHER BRENNAN, M.D.
Internal Medicine (License #MD13459 in RI)
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
1000 Montauk Highway, Hospitalist Office
West Islip, NY 11795
Phone: 6313763610
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.