Mary Agnes Newell, D.O.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

268239-1 Issued in NY

Practice address

701 North Broadway
Northwell Phelps Hospital Emergency Medicine Dept.
Sleepy Hollow, NY 10457-1059

Phone

(914) 366-3591

NPI assigned

May 16, 2012

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Dr. Maggie Garvey Newell Other name

Medicare fee-for-service enrollment

Enrolled in NY

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

Emergency Medicine

Education

New York College of Osteo Medicine of New York Institute of Technology, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Phelps Hospital Hospital, Sleepy Hollow, NY, CCN 330261
• Montefiore Medical Center Hospital, Bronx, NY, CCN 330059

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H5989

Interoperability endpoints

• Direct secure messaging: mnewell219065@northwell.direct-ci.com

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.

• North Shore-Lij Medical PC

  • Urology Physician
  • Great Neck, NY
  • NPI 1053688572

  Emergency Medicine

  Medicare reassignment Care Compare group NPD
• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Emergency Medicine

  Medicare reassignment NPD
• Montefiore Medical Center

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD

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

• Montefiore Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1952476988
  Care Compare affiliation
• Phelps Memorial Hospital Association

  • General Acute Care Hospital
  • Sleepy Hollow, NY
  • NPI 1720185267
  Care Compare affiliation

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

{
    "created_epoch": "1337126400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1174882757",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "701 NORTH BROADWAY",
            "address_2": "NORTHWELL PHELPS EMERGENCY DEPARTMENT",
            "city": "SLEEPY HOLLOW",
            "state": "NY",
            "postal_code": "10591"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "701 NORTH BROADWAY",
            "address_2": "NORTHWELL PHELPS HOSPITAL EMERGENCY MEDICINE DEPT.",
            "city": "SLEEPY HOLLOW",
            "state": "NY",
            "postal_code": "104571059",
            "telephone_number": "914-366-3591"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NEWELL",
        "first_name": "MARY",
        "middle_name": "AGNES",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-05-16",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "268239-1",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MAGGIE",
            "last_name": "NEWELL",
            "middle_name": "GARVEY",
            "prefix": "DR.",
            "credential": "D.O.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Amanda Nash, LMSW
• Cesia M Negron Losada, DMD
• Neha Dave,DDS P.C.
• New York Eye and Face Oculoplastic Surgery PLLC
• New York Eye and Face, PLLC
• Annie Tram Anh Ngoc Nguyen, DO
• Kimberly Jean Nichols, LCSW-R
• Nicole S Jackson, Family NP,PC
• Emil J Nigro, MD
• Sherin Mary Ninan, FNP

• Emergency Medicine Physician in Sleepy Hollow, NY
• Providers in Sleepy Hollow, NY by specialty
• Emergency Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2025; 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.