Lorreen Mattson, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

100999 Issued in PA

Practice address

1 Boston Medical Ctr PL
Boston, MA 02118-2908

Phone

(617) 638-6950

Fax

(617) 638-6966

NPI assigned

Feb 5, 2014

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in PA, MA2 enrollments

Enrollment records 2

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Associated Physicians of Harvard Medical Faculty Physicians at Beth IsGroup PAC ID 6305749987, 566 clinicians

Umass Memorial Medical Group IncGroup PAC ID 4284539891, 2,494 clinicians

Pratt Anesthesiology Associates IncGroup PAC ID 0547151151, 153 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Tufts Medical Center Hospital, Boston, MA, CCN 220116
• Mount Auburn Hospital Hospital, Cambridge, MA, CCN 220002
• Umass Memorial Medical Center/University Campus Hospital, Worcester, MA, CCN 220163

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lmattson97570@tuftsmedicine.direct-ci.com
• Direct secure messaging: lmattson120118@direct.challiance.masshiway.net
• Direct secure messaging: lmattson183096@direct.bmc.masshiway.net

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.

• Pratt Anesthesiology Associates, Inc

  • Anesthesiology Physician
  • Boston, MA
  • NPI 1326085390
  Medicare reassignment Care Compare group NPD
• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373
  Medicare reassignment Care Compare group NPD
• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  • Emergency Medical Services (Emergency Medicine) Physician
  • Boston, MA
  • NPI 1952358533
  Medicare reassignment Care Compare group
• Boston University Medical Center Anesthesiologists, Inc.

  • Anesthesiology Physician
  • Boston, MA
  • NPI 1952874737

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Brigham & Womens Physicians Organization Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1033535497
  Medicare reassignment NPD
• Lawrence Anesthesia Services, LLC

  • Anesthesiology Physician
  • Lawrence, MA
  • NPI 1467699918

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• KBS Anesthesia, Inc.

  • Anesthesiology Physician
  • Beaver, PA
  • NPI 1801559349
  Medicare reassignment NPD
• Northstar Anesthesia of Pennsylvania, LLC

  • Anesthesiology Physician
  • Darby, PA
  • NPI 1700218989

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  Medicare reassignment
• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  • Multi-Specialty Clinic/Center
  • Boston, MA
  • NPI 1861216038
  NPD
• Boston Medical Center Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1346218294
  NPD
• Cambridge Public Health Commission

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1487603585
  NPD

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

• Mount Auburn Hospital

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1689670259
  Care Compare affiliation
• Tufts Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1730132515
  Care Compare affiliation
• Umass Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1831151455
  Care Compare affiliation

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

{
    "created_epoch": "1391558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776384000000",
    "number": "1588088918",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 NASSAU ST UNIT 2203",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021111591",
            "telephone_number": "412-496-7322"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BOSTON MEDICAL CTR PL",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182908",
            "telephone_number": "617-638-6950",
            "fax_number": "617-638-6966"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "800 Washington St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021111552",
            "country_code": "US",
            "telephone_number": "617-636-6044",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MATTSON",
        "first_name": "LORREEN",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-02-05",
        "last_updated": "2026-04-17",
        "certification_date": "2026-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MA",
            "license": "RN2352220",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "PA",
            "license": "100999",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3143478",
            "state": "NH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110173304A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Andrea Mattisen, LICSW BCD
• Melissa Lowe Plocher Mattison, MD
• Jacob R Mattleman, LICSW
• Mary-Bianca Mattocks
• Cynthia G Mattox, M.D.
• Seth Mattson
• Josephine Christer Mattsson, NP
• Aneetpal Mattu, MD
• Anna Gabriella Matuk
• Rani F Matuk, MD

• Certified Registered Nurse Anesthetist in Boston, MA
• Providers in Boston, MA by specialty
• Certified Registered Nurse Anesthetist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.