Claes M Nilsson, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

53091 Issued in MA

Practice address

990 Washington St
Suite 203
Dedham, MA 02026-6714

Phone

(413) 543-6820

Fax

(781) 326-1384

NPI assigned

Sep 22, 2006

Last updated

Oct 19, 2022By 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

Other identifiers 1

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

Internal MedicineAlso: Hematology/Oncology

Education

Yale University School of Medicine, 1973

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Vantage Healthcare LLCGroup PAC ID 8224361191, 72 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Caretenders Home health agency, Needham Heights, MA, CCN 227269
• Good Shepherd Community Care Hospice, Newton, MA, CCN 221500
• Sherrill House Nursing home, Boston, MA, CCN 225201

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

• Ayer Valley Rehab and Nursing LLC

  • Skilled Nursing Facility
  • Ayer, MA
  • NPI 1316624141

  Adp of the SNF, Managing Control - Governing Body, Operational/Managerial Control

  CMS ownership

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.

• Vantage Healthcare LLC

  dba Vantage Healthcare

  • Internal Medicine Physician
  • Canton, MA
  • NPI 1366903551
  Medicare reassignment Care Compare group NPD
• Ipc Hospitalists of New England, P.C.

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1659555266
  Medicare reassignment NPD
• Massachusetts Acute Care Specialists PC

  • Internal Medicine Physician
  • Melrose, MA
  • NPI 1306134812
  Medicare reassignment NPD
• Ipc Hospitalists of New England PC

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1801330287
  NPD
• Ipc Hospitalists of New England, P.C.

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1932516176
  NPD
• Ayer Valley Rehab and Nursing LLC

  • Skilled Nursing Facility
  • Ayer, MA
  • NPI 1316624141
  NPD (past)
• Bernard a Westerling III, MD, LLC

  • Family Medicine Physician
  • Fitchburg, MA
  • NPI 1366606246
  NPD (past)
• Coordinated Primary Care, Inc.

  dba HealthAlliance Pediatric Hospitalists Group

  • Hospitalist Physician
  • Leominster, MA
  • NPI 1851623714
  NPD (past)
• North Shore Medical Center, Inc.

  dba Salem Hospital

  • Psychiatric Hospital Unit
  • Salem, MA
  • NPI 1417972647
  NPD (past)
• NSPG Billing LLC

  • Urology Physician
  • Newburyport, MA
  • NPI 1144981721
  NPD (past)
• Sherrill House, Inc

  • Skilled Nursing Facility
  • Boston, MA
  • NPI 1356496947
  NPD (past)

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

• Caretenders VS of Boston, LLC

  dba Caretenders

  • Home Health Agency
  • Needham Heights, MA
  • NPI 1396929048
  Care Compare affiliation
• Hospice of the Good Shepherd, Inc.

  • Community Based Hospice Care Agency
  • Newton, MA
  • NPI 1053311514
  Care Compare affiliation
• Sherrill House, Inc

  • Skilled Nursing Facility
  • Boston, MA
  • NPI 1356496947

  Nursing home

  Care Compare affiliation

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

{
    "created_epoch": "1158883200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1666137600000",
    "number": "1912006065",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "819 WORCESTER ST",
            "address_2": "STE 3",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011511045",
            "telephone_number": "413-543-6820",
            "fax_number": "413-543-7962"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "990 WASHINGTON ST",
            "address_2": "SUITE 203",
            "city": "DEDHAM",
            "state": "MA",
            "postal_code": "020266714",
            "telephone_number": "413-543-6820",
            "fax_number": "781-326-1384"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NILSSON",
        "first_name": "CLAES",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-22",
        "last_updated": "2022-10-19",
        "certification_date": "2022-10-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "53091",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110045324/A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Next Generation Behavioral Health LLC
• Kathy Kim Nguyen
• Vicky Kim Nguyen
• Margaret Nickerson
• Nan E Niland, DDS
• Juliet Nimako, MD
• Noble Guardians Home Health Care LLC
• Brooke Nicole Nola
• Victoria Nompleggi
• Sophie Ruth Norgaard, AUD

• Internal Medicine Physician in Dedham, MA
• Providers in Dedham, MA by specialty
• Internal Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 19, 2022; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; 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.