Brett Eric Lewis, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

25MA08312200 Issued in NJ

Practice address

1100 Grampian Blvd
Williamsport, PA 17701-1907

Phone

(570) 326-8203

NPI assigned

Apr 15, 2008

Sex

Male

Sole proprietor

No

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 NC, NJ, PA3 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 3

Specialty

Radiation Oncology

Education

Albert Einstein College of Medicine of Yeshiva University, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Regional Cancer Care Associates LLCGroup PAC ID 5294710091, 148 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hackensack University Medical Center Hospital, Hackensack, NJ, CCN 310001
• Hackensack Meridian Mountainside Medical Hospital, Montclair, NJ, CCN 310054

Merit-based Incentive Payment System (MIPS)

Final score

81.1 of 100Reported as subgroup

Quality

51.56

Promoting interoperability

100

Improvement activities

40

Cost

70.94

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 and National Provider Directory roles.

• Regional Cancer Care Associates LLC

  • Hematology & Oncology Physician
  • Toms River, NJ
  • NPI 1801850243

  NJ, Radiation Oncology

  Medicare reassignment Care Compare group NPD
• Outer Banks Professional Services, LLC

  • Multi-Specialty Clinic/Center
  • Nags Head, NC
  • NPI 1891050357

  NC

  Medicare reassignment NPD
• Totowa Cancer Center

  • Radiation Oncology Clinic/Center
  • Totowa, NJ
  • NPI 1225777808

  NJ

  Medicare reassignment NPD
• Vidant Medical Group LLC

  • Multi-Specialty Clinic/Center
  • Greenville, NC
  • NPI 1477648731

  NC

  Medicare reassignment NPD
• Regional Cancer Care Associates LLC

  • Hematology & Oncology Physician
  • North Falmouth, MA
  • NPI 1003677014
  Care Compare group
• Regional Cancer Care Associates LLC

  • Medical Oncology Physician
  • Manchester, CT
  • NPI 1033667845
  Care Compare group
• Regional Cancer Care Associates LLC

  • Hematology & Oncology Physician
  • Little Silver, NJ
  • NPI 1205398088
  Care Compare group
• Regional Cancer Care Associates LLC

  • Hematology & Oncology Physician
  • West Hartford, CT
  • NPI 1477118248
  Care Compare group
• Regional Cancer Care Associates LLC

  • Community/Retail Pharmacy
  • East Brunswick, NJ
  • NPI 1700292380
  Care Compare group
• Regional Cancer Care Associates, L.L.C.

  • Hematology & Oncology Physician
  • Washington, DC
  • NPI 1265870331
  Care Compare group
• Outer Banks Professional Services, LLC

  • Urgent Care Clinic/Center
  • Nags Head, NC
  • NPI 1386182608
  NPD
• Regional Cancer Care Associates LLC

  • Hematology & Oncology Physician
  • Belleville, NJ
  • NPI 1447315502
  NPD

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

• HMH Hospitals Corporation

  • General Acute Care Hospital
  • Hackensack, NJ
  • NPI 1457456279

  Hospital

  Care Compare affiliation
• HMH Hospitals Corporation

  • Clinical Medical Laboratory
  • Hackensack, NJ
  • NPI 1518683929

  Hospital

  Care Compare affiliation
• Montclair Hospital LLC

  • General Acute Care Hospital
  • Montclair, NJ
  • NPI 1982720249

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1208217600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788048000000",
    "number": "1306010806",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "149 RIDGEDALE AVE",
            "city": "MADISON",
            "state": "NJ",
            "postal_code": "079401221",
            "telephone_number": "917-733-6255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1100 GRAMPIAN BLVD",
            "city": "WILLIAMSPORT",
            "state": "PA",
            "postal_code": "177011907",
            "telephone_number": "570-326-8203"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Bay Ave",
            "address_purpose": "LOCATION",
            "city": "Montclair",
            "state": "NJ",
            "postal_code": "070424837",
            "country_code": "US",
            "telephone_number": "973-429-6096",
            "fax_number": "973-429-6749",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEWIS",
        "first_name": "BRETT",
        "middle_name": "ERIC",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-04-15",
        "last_updated": "2026-08-30",
        "certification_date": "2026-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NJ",
            "license": "25MA08312200",
            "primary": true
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NC",
            "license": "2010-00507",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amber Lynn Leonard, CRNP
• Ashley L Lesher, CRNP
• Samantha Jo Less, PA-C
• Megan Marie Lessman
• Margaret K Levan, REGISTERED NURSE
• Kathleen Claire Lewis
• Andrea Liebersohn, CRNP
• Yung-Tai Lin, M.D.
• Linn Mental Health and Wellness LLC
• Linn Orthodontics, LLC

• All providers in Williamsport, PA
• Radiation Oncology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 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.