Individual provider Active NPI

Alexander Gaunt Slater, MD

  • Anesthesiology Physician
  • New London, CT
National Provider Identifier
1851332308
Registry record updated Jul 28, 2010
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
031282 Issued in CT
Practice address
365 Montauk Ave
New London, CT 06320-4700
Phone
(203) 757-7000
NPI assigned
Jun 8, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 28, 2010

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 031282 CT Primary

Addresses

Primary practice location

365 Montauk Ave
New London, CT 06320-4700

Mailing address

690 Canton St
Suite 325
Westwood, MA 02090-2329
Phone (781) 407-7713

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT, RI2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20050315000770 CT Practitioner - Anesthesiology 5597710251 Reassigns benefits to 3 organizations
I20190826000612 RI Practitioner - Anesthesiology 5597710251 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
University of Connecticut School of Medicine, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Connecticut Gi PLLCGroup PAC ID 9830110758, 243 clinicians
Northeast Medical Group IncGroup PAC ID 1254233836, 1,357 clinicians
Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

196 Waterford Pkwy S
Suite 306
Waterford, CT 06385-1234
Phone (860) 447-2489

25 Wells St
Westerly, RI 02891-2922
Phone (401) 596-6000

365 Montauk Ave
New London, CT 06320-4700
Phone (860) 444-3735

800 Howard Ave
New Haven, CT 06519-1369
Phone (203) 785-2140

Hospital & facility affiliations

  • Lawrence & Memorial Hospital Hospital, New London, CT, CCN 070007

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as apm
Quality
86.54
Promoting interoperability
99.98
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
91.99 of 100Reported as group
Quality
89.16
Promoting interoperability
100
Improvement activities
40
Cost
78.45

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
031282CTMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Yale University Anesthesiology CurrentSince Oct 16, 2025 Accepting new patients
Northeast Medical Group, Inc. CurrentSince Aug 12, 2021 Accepting new patients
Yale University CurrentSince Oct 16, 2025 Accepting new patients
Connecticut Gi PLLC CurrentSince May 1, 2024 Accepting new patients
Mill Hill Medical Consultants Inc CurrentSince Jan 1, 2022 Accepting new patients
Waterbury Anesthesiology Assoc. Inc Anesthesiology Past Accepting new patients
Milford Anesthesia Associates LLC Anesthesiology PastSince Sep 25, 2019 Accepting new patients
Anesthesiologists of Middletown, P.C. Anesthesiology PastSince Jul 27, 2020 Accepting new patients

Locations

41 Brewster Rd
Bristol, CT 06010
Phone (800) 585-3000

52 Hazelnut Hill Rd
Groton, CT 06340
Phone (860) 446-8265

85 Seymour St
Ste 1000
Hartford, CT 06106
Phone (860) 246-2571

300 Seaside Ave
Milford, CT 06460
Phone (203) 876-4000

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

365 Montauk Ave
New London, CT 06320
Phone (860) 271-4364

30 Waterchase Dr
Rocky Hill, CT 06067
Phone (860) 257-4131

99 Hawley Ln
Fl 3
Stratford, CT 06614
Phone (203) 502-4650

95 Armory Rd
Stratford, CT 06614
Phone (203) 384-3388

64 Robbins St
Waterbury, CT 06708
Phone (203) 573-7142

196 Waterford Parkway S
Ste 306
Waterford, CT 06385
Phone (860) 447-2489

25 Wells St
Westerly, RI 02891
Phone (401) 348-3325

45 East Ave
Westerly, RI 02891
Phone (401) 596-6000

Interoperability endpoints

  • Direct secure messaging: aslater329894@direct.ynhh.org

Organizations & group practices 8

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.

Hospital & facility affiliations 2

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": "1149724800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1280275200000",
    "number": "1851332308",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "690 CANTON ST",
            "address_2": "SUITE 325",
            "city": "WESTWOOD",
            "state": "MA",
            "postal_code": "020902329",
            "telephone_number": "781-407-7713",
            "fax_number": "781-407-0998"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "365 MONTAUK AVE",
            "city": "NEW LONDON",
            "state": "CT",
            "postal_code": "063204700",
            "telephone_number": "203-757-7000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLATER",
        "first_name": "ALEXANDER",
        "middle_name": "GAUNT",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-08",
        "last_updated": "2010-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CT",
            "license": "031282",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New London, CT

Sources for this page

Verify at the official NPI Registry.