Sonya Naganathan, MD, MPH

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

D0105083 Issued in MD

Practice address

4940 Eastern Ave
Baltimore, MD 21224-2735

Phone

(410) 955-5000

NPI assigned

Jun 26, 2015

Last updated

Oct 9, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, MD, DC3 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

Emergency Medicine

Education

University of Toledo College of Medicine, 2015

Medicare assignment

May accept Medicare assignment

Group practices

Johns Hopkins UniversityGroup PAC ID 8921903147, 2,886 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Johns Hopkins Howard County Medical Center Hospital, Columbia, MD, CCN 210048
• Johns Hopkins Hospital, the Hospital, Baltimore, MD, CCN 210009
• Sibley Memorial Hospital Hospital, Washington, DC, CCN 090005

Merit-based Incentive Payment System (MIPS)

Final score

82.87 of 100Reported as group

Quality

70.15

Promoting interoperability

100

Improvement activities

40

Cost

72.75

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.

• Johns Hopkins University

  dba Jhu - Anesthesia Pain MGMT

  • Pain Medicine (Anesthesiology) Physician
  • Baltimore, MD
  • NPI 1922008549
  Medicare reassignment Care Compare group NPD
• Johns Hopkins University

  dba Jhu - Emergency Medicine

  • Emergency Medicine Physician
  • Baltimore, MD
  • NPI 1386631810

  DC

  Medicare reassignment NPD
• University of Texas Southwestern Medical Center at Dallas

  • Anesthesiology Physician
  • Dallas, TX
  • NPI 1942270566
  Medicare reassignment NPD
• Johns Hopkins University

  dba JHU - 4692 Millennium Drive - Physician

  • Ophthalmology Physician
  • Belcamp, MD
  • NPI 1376342774
  NPD
• Johns Hopkins University

  dba Jhu - 4102 Wilson Blvd - Vision

  • Optometrist
  • Arlington, VA
  • NPI 1316750508
  NPD
• The University of Texas Southwestern Medical Center at Dallas

  • Clinical Medical Laboratory
  • Dallas, TX
  • NPI 1396832713
  NPD
• University of Texas Southwestern Medical Center at Dallas

  • Emergency Medicine Physician
  • Dallas, TX
  • NPI 1205880036
  NPD

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

• Howard County General Hospital, Inc,

  dba Johns Hopkins Howard County Medical Center

  • General Acute Care Hospital
  • Columbia, MD
  • NPI 1144291899
  Care Compare affiliation
• The Johns Hopkins Hospital

  • General Acute Care Hospital
  • Baltimore, MD
  • NPI 1578597993
  Care Compare affiliation
• Lucy Webb Hayes National Training School for Deaconesses & Missionarie

  dba Sibley Memorial Hospital

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1366492977
  Care Compare affiliation

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

{
    "created_epoch": "1435276800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759968000000",
    "number": "1528440476",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-955-5000",
            "fax_number": "410-500-4266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4940 EASTERN AVE",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212242735",
            "telephone_number": "410-955-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NAGANATHAN",
        "first_name": "SONYA",
        "name_prefix": "Dr.",
        "credential": "MD, MPH",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-06-26",
        "last_updated": "2025-10-09",
        "certification_date": "2025-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MD",
            "license": "D0105083",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "T2692",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "RI",
            "license": "MD16711",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Aymen Naeem
• Muhammad Naeem, C.R.N.P.
• Neal J Naff, MD
• Lena N Naffaa, M.D.
• Hajia M Nagaiya
• Raisha Rashesh Nagar, PHARM.D.
• Suchi Smitha Nagaraj, M.D.
• Heinz Nagel, M.D.
• Monika S Nageshwar, MD
• Sheryl Nagle, M.D.

• Emergency Medicine Physician in Baltimore, MD
• Providers in Baltimore, MD by specialty
• Emergency Medicine Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 9, 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.