Sebastian Bourgeois, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

52255 Issued in CT

Practice address

908 Allen Street
Springfield Anesthesia Service
Springfield, MA 01118-2533

Phone

(413) 796-7494

Fax

(413) 796-7497

NPI assigned

May 17, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MA, CT2 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

Specialty

Anesthesiology

Education

Other, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Stamford Anesthesiology Services PC 48 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Stamford Hospital Hospital, Stamford, CT, CCN 070006

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Stamford Anesthesiology Services, PC

  • Anesthesiology Physician
  • Stamford, CT
  • NPI 1376608448

  Anesthesiology, CT

  Medicare reassignment Care Compare group NPD
• Dha Endoscopy LLC

  • Ambulatory Surgical Clinic/Center
  • Stoneham, MA
  • NPI 1730113325

  MA

  Medicare reassignment NPD
• Holyoke Medical Center, Inc.

  • Anesthesiology Physician
  • Holyoke, MA
  • NPI 1992923486

  Anesthesiology, MA

  Medicare reassignment NPD
• Charter Anesthesiology LLC

  • Anesthesiology Physician
  • West Hartford, CT
  • NPI 1730674532

  Anesthesiology, CT, MA

  Medicare reassignment NPD
• Connecticut Gi PLLC

  • Gastroenterology Physician
  • Hartford, CT
  • NPI 1023124625

  CT

  Medicare reassignment NPD
• Integrated Anesthesia Associates LLC

  • Anesthesiology Physician
  • Shelton, CT
  • NPI 1881636397

  Anesthesiology, CT

  Medicare reassignment NPD
• Woodland Anesthesia Associates PC

  • Anesthesiology Physician
  • Hartford, CT
  • NPI 1437109824

  CT, MA

  Medicare reassignment
• Dha Endoscopy LLC

  • Anesthesiology Physician
  • Stoneham, MA
  • NPI 1851921555

  Anesthesiology

  NPD
• Holyoke Medical Center, Inc.

  • General Acute Care Hospital
  • Holyoke, MA
  • NPI 1750395737
  NPD
• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373

  Anesthesiology

  NPD (past)

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

• Stamford Hospital

  • General Acute Care Hospital
  • Stamford, CT
  • NPI 1356331425

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1179360000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780876800000",
    "number": "1265649115",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "908 ALLEN ST",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011182569",
            "telephone_number": "413-796-7494",
            "fax_number": "413-796-7497"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "908 ALLEN STREET",
            "address_2": "SPRINGFIELD ANESTHESIA SERVICE",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011182533",
            "telephone_number": "413-796-7494",
            "fax_number": "413-796-7497"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BOURGEOIS",
        "first_name": "SEBASTIAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-05-17",
        "last_updated": "2026-06-08",
        "certification_date": "2026-06-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MA",
            "license": "242564",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CT",
            "license": "52255",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jeannine Boulay-Buddenhagen, LSWA
• Gail Bourassa
• Matthew Dennis Bourbeau, PTA
• Brian Bourgeault, PA
• Karen J. Bourgeault, P.A.C.
• Allison Ruth Bourque
• Jaclyn Marie Bousquet
• Katie Bousquet
• Marcy Bousquet
• Rhondi Bousquet, LMHC

• All providers in Springfield, MA
• Anesthesiology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 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.

Verify at the official NPI Registry.