Justin K To, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

253521 Issued in NY

Practice address

3332 Rochambeau Ave
OB/GYN Department
Bronx, NY 10467-2836

Phone

(718) 920-6311

NPI assigned

Jun 24, 2009

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

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

Obstetrics/Gynecology

Education

State University of New York at Stony Brook, School of Medicine, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

MMC OB/GYN Faculty Practice PlanGroup PAC ID 0345274809, 31 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Maimonides Medical Center Hospital, Brooklyn, NY, CCN 330194

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: juto@montefioredirect.com
• Direct secure messaging: jto73252@direct.medisys.org
• Direct secure messaging: justinto@hiemail.healtheconnections.org

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.

• MMC OB-GYN Faculty Practice Plan

  • Specialist
  • Brooklyn, NY
  • NPI 1306843388
  Medicare reassignment Care Compare group NPD
• Flushing Hospital & Medical Center

  • General Acute Care Hospital
  • Flushing, NY
  • NPI 1548217763
  Medicare reassignment NPD
• Jamaica Hospital

  • Emergency Medical Services (Emergency Medicine) Physician
  • Jamaica, NY
  • NPI 1477505220
  Medicare reassignment NPD
• Maimonides Faculty Practice Plan

  • Internal Medicine Physician
  • Brooklyn, NY
  • NPI 1053344846
  Medicare reassignment NPD
• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Obstetrics & Gynecology

  Medicare reassignment NPD
• TJH Medical Services, P.C.

  • Internal Medicine Physician
  • Jamaica, NY
  • NPI 1184670465

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Flushing Hospital Medical Center

  • Skilled Nursing Facility
  • Flushing, NY
  • NPI 1568693174
  NPD
• Jamaica Hospital

  • Skilled Nursing Facility
  • Jamaica, NY
  • NPI 1750516795
  NPD
• Montefiore Medical Center

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Maimonides Medical Center

  • General Acute Care Hospital
  • Brooklyn, NY
  • NPI 1093777492
  NPD (past)
• MMC OB/GYN Hospital

  • Specialist
  • Brooklyn, NY
  • NPI 1679570766
  NPD (past)

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

• Maimonides Medical Center

  • General Acute Care Hospital
  • Brooklyn, NY
  • NPI 1093777492
  Care Compare affiliation

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

{
    "created_epoch": "1245801600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769644800000",
    "number": "1457589863",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3332 ROCHAMBEAU AVE",
            "address_2": "OB/GYN DEPARTMENT",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104672836",
            "telephone_number": "718-920-6311"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3332 ROCHAMBEAU AVE",
            "address_2": "OB/GYN DEPARTMENT",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104672836",
            "telephone_number": "718-920-6311"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TO",
        "first_name": "JUSTIN",
        "middle_name": "K",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2009-06-24",
        "last_updated": "2026-01-29",
        "certification_date": "2026-01-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NY",
            "license": "253521",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ram Tiwari, MD
• Jo-an Tizon
• Gabriella Tlatelpa
• TLC Adult Day Care LLC.
• Grace Chiyu To, OD
• Susan Van To, PHARMD
• Jean Tobar
• Maura Elisa Tobar
• Abraham Tobias, MD
• Amalia Tobias

• Obstetrics & Gynecology Physician in Bronx, NY
• Providers in Bronx, NY by specialty
• Obstetrics & Gynecology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 29, 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.