Active NPI
Christopher James Demaree, MD, MS
- Surgical Critical Care Physician
- Brooklyn, NY
National Provider Identifier
1225693823
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgical Critical Care Physician
- License
- 313923
- Practice address
- 450 Clarkson Avenue
Department of Surgery
Brooklyn, NY 11203-2012 - Phone
- (718) 270-1421
- NPI assigned
- May 8, 2019
- Last updated
- Jul 21, 2026
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | NU | ||
| Surgical Critical Care Physician | 2086S0102X | 313923 | NY | Primary |
Addresses
Primary practice location
450 Clarkson Avenue
Department of Surgery
Brooklyn, NY 11203-2012
Mailing address
450 Clarkson Avenue
Department of Surgery
Brooklyn, NY 11203-2012
Phone (718) 270-1421
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Care Compare profile
Medicare Care Compare- Specialty
- General Surgery
- Education
- Tulane University School of Medicine, 2019
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
700 Hicksville Rd
Bethpage, NY 11714-3471
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Master of Science
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1557273600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784592000000",
"number": "1225693823",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "450 CLARKSON AVENUE",
"address_2": "DEPARTMENT OF SURGERY",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "112032012",
"telephone_number": "718-270-1421"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "450 CLARKSON AVENUE",
"address_2": "DEPARTMENT OF SURGERY",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "112032012",
"telephone_number": "718-270-1421"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DEMAREE",
"first_name": "CHRISTOPHER",
"middle_name": "JAMES",
"name_prefix": "Dr.",
"credential": "MD, MS",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-05-08",
"last_updated": "2026-07-21",
"certification_date": "2026-07-21",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "NU",
"license": null,
"primary": false
},
{
"code": "2086S0102X",
"taxonomy_group": "",
"desc": "Surgery, Surgical Critical Care",
"state": "NY",
"license": "313923",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Brooklyn, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 2026; 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.