Yen Hoong Ooi, M.D.

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

270528 Issued in NY

Practice address

762 59TH St Ste 7
Brooklyn, NY 11220-3920

Phone

(917) 338-6688

NPI assigned

Oct 21, 2010

Last updated

May 14, 2026By 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 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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: yooi130552@nyumc.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Weill Medical College of Cornell

  • Internal Medicine Physician
  • New York, NY
  • NPI 1124170212

  Pediatrics

  Medicare reassignment NPD
• Yen Hoong Ooi MD PLLC

  dba Happiness Pediatrics

  • Pediatrics Physician
  • Brooklyn, NY
  • NPI 1245688985
  NPD (past) Authorized official
• Happiness Pediatrics PLLC

  • Pediatrics Physician
  • Brooklyn, NY
  • NPI 1548148828
  NPD
• Weill Medical College of Cornell

  • Cardiovascular Disease Physician
  • New York, NY
  • NPI 1144729385
  NPD
• Weill Medical College of Cornell

  dba CUMC Pediatrics

  • Pediatrics Physician
  • New York, NY
  • NPI 1629018205
  NPD

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

{
    "created_epoch": "1287619200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1659671808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "762 59TH ST STE 7",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112203920",
            "telephone_number": "917-338-6688"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "762 59TH ST STE 7",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112203920",
            "telephone_number": "917-338-6688"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2481 86th St STO",
            "address_purpose": "LOCATION",
            "city": "Brooklyn",
            "state": "NY",
            "postal_code": "112144448",
            "country_code": "US",
            "telephone_number": "929-630-6688",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3808 Union St Ste 6B",
            "address_purpose": "LOCATION",
            "city": "Flushing",
            "state": "NY",
            "postal_code": "113545672",
            "country_code": "US",
            "telephone_number": "908-808-6688",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "358 New Dorp Ln Fl 1",
            "address_purpose": "LOCATION",
            "city": "Staten Island",
            "state": "NY",
            "postal_code": "103063035",
            "country_code": "US",
            "telephone_number": "718-980-6688",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OOI",
        "first_name": "YEN HOONG",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-10-21",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "270528",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mya Mya Oo, M.D
• Tin Tin Oo, M.D.
• Zin Oo
• Ravichand Oodal, MD
• Xinyee Ooi, MD
• Alvin Joy Oommen, MD
• Christi Rose Oommen, DO
• Sheethal Gloria Oommen
• Winnifred Sandra Oostervink, MSPT
• Randolph R Oosterwijk, PT

• Pediatrics Physician in Brooklyn, NY
• Providers in Brooklyn, NY by specialty
• Pediatrics Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.