Mark H Sloan, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

58292 Issued in MA

Practice address

3550 Main St
Suite 103
Springfield, MA 01107-1089

Phone

(413) 788-9700

NPI assigned

Jun 5, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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

Specialty

Anesthesiology

Education

State University of New York at Buffalo School of Medicine, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mass General Brigham Medical Group Western Massachusetts IncGroup PAC ID 2567359839, 291 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cooley Dickinson Hospital Inc,the Hospital, Northampton, MA, CCN 220015

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Mass General Brigham Medical Group Western Massachusetts Inc

  • Family Medicine Physician
  • Northampton, MA
  • NPI 1295787919
  Medicare reassignment Care Compare group NPD
• Pioneer Valley Anesthesia, LLC

  • Anesthesiology Physician
  • Northampton, MA
  • NPI 1528341294
  NPD

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

• Cooley Dickinson Hospital Inc

  • General Acute Care Hospital
  • Northampton, MA
  • NPI 1477596310
  Care Compare affiliation
• Cooley Dickinson Hospital Inc

  • Psychiatric Hospital Unit
  • Northampton, MA
  • NPI 1871512814
  Care Compare affiliation

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

{
    "created_epoch": "1149465600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1245279231",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11 SCARBOROUGH RD",
            "city": "SIMSBURY",
            "state": "CT",
            "postal_code": "060701257",
            "telephone_number": "413-788-9700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3550 MAIN ST",
            "address_2": "SUITE 103",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011071089",
            "telephone_number": "413-788-9700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLOAN",
        "first_name": "MARK",
        "middle_name": "H",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MA",
            "license": "58292",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rebecca Marie Sleeper, RN
• Nicolette Slezak
• Rosalie Sligar
• Michael Slinsky, LMHC
• Barry E Slitzky, M.D.
• Novelette J Smallwood
• Justin Smart
• Michelle Smart
• Smartruama
• Carmen Smidy, CNM

• Anesthesiology Physician in Springfield, MA
• Providers in Springfield, MA by specialty
• Anesthesiology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.