Individual provider Active NPI

Marissa Defreese, MD

  • Surgical Critical Care Physician
  • Stamford, CT
National Provider Identifier
1194963462
Registry record updated Feb 7, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgical Critical Care PhysicianTaxonomy code 2086S0102X
License
047916 Issued in CT
Practice address
29 Hospital Plaza
6TH Floor
Stamford, CT 06902-2419
Phone
(203) 276-5959
Fax
(203) 276-5969
NPI assigned
Jan 26, 2009
Last updated
Feb 7, 2017By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 7, 2017

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 047916 CT
Surgical Critical Care Physician 2086S0102X 047916 CT Primary

Addresses

Primary practice location

29 Hospital Plaza
6TH Floor
Stamford, CT 06902-2419

Mailing address

29 Hospital Plaza
6TH Floor
Stamford, CT 06902-2419
Phone (203) 276-5959

Other names 1

  • Marissa Delgado Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20180830003141 CA Practitioner - General Surgery 3072709138 Reassigns benefits to 8 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Other, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Northridge Trauma Surgeons Inc a Medical CorporationGroup PAC ID 2567828825, 13 clinicians
Compassionate Critical Care Group, Inc.Group PAC ID 2668884842, 14 clinicians

Practice addresses (Care Compare)

18300 Roscoe Blvd
Northridge, CA 91325-4105
Phone (818) 998-8591

215 W Janss Rd
Thousand Oaks, CA 91360-1847
Phone (805) 497-2727

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.97 of 100Reported as group
Quality
47.69
Promoting interoperability
100
Improvement activities
40
Cost
82.27

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Upper gastrointestinal (GI) endoscopy for acid reflux1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
047916CTMDSurgical Critical Care Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Jaspreet Somal M.D., a.P.C. CurrentSince Oct 8, 2023 Accepting new patients
Northridge Trauma Surgeons Inc a Medical Corporation Surgery CurrentSince Mar 1, 2023 Accepting new patients
Compassionate Critical Care Group, Inc. CurrentSince May 22, 2024 Accepting new patients
Kern County Hospital Authority CurrentSince Feb 3, 2019 Accepting new patients
Oaks Surgical Specialists, a Medical Corporation Surgery CurrentSince Mar 1, 2022 Accepting new patients
Acute Care Surgery Medical Group, Inc. Surgery CurrentSince Oct 1, 2019 Accepting new patients
Life Medical Practitioners CurrentSince Oct 8, 2023 Accepting new patients
Kern County Hospital Authority CurrentSince Feb 3, 2019 Accepting new patients
Surgical Affiliates of California Surgery CurrentSince Jun 1, 2025 Accepting new patients
Wound MD PC CurrentSince Feb 10, 2022 Accepting new patients

Locations

1700 Mount Vernon Ave
Bakersfield, CA 93306
Phone (616) 326-2000

2211 Mount Vernon Ave
Bakersfield, CA 93306
Phone (502) 596-7588

329 Real Rd
Bakersfield, CA 93309
Phone (661) 327-7107

730 34th St
Bakersfield, CA 93301
Phone (661) 322-2867

1100 Trousdale Dr
Burlingame, CA 94010
Phone (650) 692-1967

587 Rio Lindo Ave
Chico, CA 95926
Phone (530) 345-1306

22590 Voss Ave
Cupertino, CA 95014
Phone (408) 253-9034

12023 Lakewood Blvd
Downey, CA 90242
Phone (562) 869-0978

1340 E Madison Ave
El Cajon, CA 92021
Phone (619) 441-1020

2353 23rd St
Eureka, CA 95501
Phone (704) 445-3261

1665 M St
Fresno, CA 93721
Phone (559) 268-5361

1805 West St
Hayward, CA 94545
Phone (510) 259-6733

2865 Atlantic Ave
Ste 104
Long Beach, CA 90806
Phone (562) 933-1820

27700 Medical Center Rd
Mission Viejo, CA 92691
Phone (949) 364-7744

18300 Roscoe Blvd
Northridge, CA 91325
Phone (818) 885-5331

9227 Reseda Blvd
Northridge, CA 91324
Phone (818) 631-1064

1565 Hill Rd
Novato, CA 94947
Phone (415) 461-9700

1400 W Gonzales Rd
Oxnard, CA 93036
Phone (805) 351-0745

9020 Garfield St
Riverside, CA 92503
Phone (951) 688-8200

1209 Hemlock Way
Santa Ana, CA 92707
Phone (714) 546-1966

1311 E Date St
Sn Bernrdno, CA 92404
Phone (909) 543-5387

215 W Janss Rd
Thousand Oaks, CA 91360
Phone (805) 379-5435

2190 Lynn Rd
Ste 300
Thousand Oaks, CA 91360
Phone (805) 242-4884

77 Rolling Oaks Dr
Ste 203
Thousand Oaks, CA 91361
Phone (805) 379-9696

22543 Ventura Blvd
Ste 220
Woodland Hills, CA 91364
Phone (747) 263-8551

Organizations & group practices 10

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 4

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1232928000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1486425600000",
    "number": "1194963462",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29 HOSPITAL PLAZA",
            "address_2": "6TH FLOOR",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069022419",
            "telephone_number": "203-276-5959",
            "fax_number": "203-276-5969"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "29 HOSPITAL PLAZA",
            "address_2": "6TH FLOOR",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069022419",
            "telephone_number": "203-276-5959",
            "fax_number": "203-276-5969"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEFREESE",
        "first_name": "MARISSA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-01-26",
        "last_updated": "2017-02-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CT",
            "license": "047916",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "CT",
            "license": "047916",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARISSA",
            "last_name": "DELGADO",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Stamford, CT

Sources for this page

Verify at the official NPI Registry.