CHI Mong Christopher Or, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

A172845 Issued in CA

Practice address

300 Pasteur Dr
Stanford, CA 94305-2200

Phone

(650) 723-4000

NPI assigned

Apr 11, 2018

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 CA

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

Ophthalmology

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University Healthcare AllianceGroup PAC ID 6305748799, 334 clinicians

Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Stanford Health Care Hospital, Stanford, CA, CCN 050441

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cor315290@direct.stanfordhealthcare.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.

• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Medicare reassignment Care Compare group NPD
• University Healthcare Alliance

  • Internal Medicine Physician
  • Newark, CA
  • NPI 1760531198

  Ophthalmology

  Medicare reassignment Care Compare group NPD
• County of Santa Clara

  • Anesthesiology Physician
  • San Jose, CA
  • NPI 1588721500

  Ophthalmology

  Medicare reassignment NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1629301346
  Medicare reassignment NPD
• County of Santa Clara

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment NPD
• LPCH Medical Group Div of Lucile

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1417907940
  Medicare reassignment NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1043354020
  NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • Milpitas, CA
  • NPI 1285629899
  NPD
• County of Santa Clara

  • Pharmacy
  • San Jose, CA
  • NPI 1891871919
  NPD
• Stanford Health Care

  • Specialty Pharmacy
  • Mountain View, CA
  • NPI 1760366132
  NPD
• Affinity Medical Group

  • Case Manager/Care Coordinator
  • Foster City, CA
  • NPI 1689708042
  NPD (past)
• Lucile Salter Packard Children'S Hospital at Stanford

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1467442749
  NPD (past)

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

• Stanford Health Care

  • Radiation Oncology Physician
  • Pleasanton, CA
  • NPI 1124561758

  Hospital

  Care Compare affiliation
• Stanford Health Care

  • General Acute Care Hospital
  • Emeryville, CA
  • NPI 1275076325
  Care Compare affiliation
• Stanford Health Care

  • General Acute Care Hospital
  • Emeryville, CA
  • NPI 1285177337
  Care Compare affiliation
• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Care Compare affiliation
• Stanford Health Care

  • General Acute Care Hospital
  • Pleasanton, CA
  • NPI 1467990465
  Care Compare affiliation
• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1871543215
  Care Compare affiliation
• Stanford Life Flight

  • Air Ambulance
  • Stanford, CA
  • NPI 1114063203

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1523404800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763683200000",
    "number": "1639676000",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "31 Massachusetts Ave Apt B4",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021151408",
            "country_code": "US",
            "telephone_number": "857-319-5544",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OR",
        "first_name": "CHI MONG",
        "middle_name": "CHRISTOPHER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-11",
        "last_updated": "2025-11-21",
        "certification_date": "2025-11-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A172845",
            "primary": true
        },
        {
            "code": "207WX0108X",
            "taxonomy_group": "",
            "desc": "Ophthalmology, Uveitis and Ocular Inflammatory Disease",
            "state": "CA",
            "license": "A172845",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sandy On, PHARMD
• Stacie Laurie Ong
• Michael Ongele, MD
• Loice A Ongwela, DNP, RN, CNS-BC, CDE
• Grace Erin Oppenheim, NP
• Willie Nnamdi Azubuike Orakpo, MD
• Lisa Ann Orloff, MD
• Shelly Elizabeth Orloff, NP
• Anthony Eugene Oro, MD
• Veronica Nicole Orr, MD

• Ophthalmology Physician in Stanford, CA
• Providers in Stanford, CA by specialty
• Ophthalmology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 21, 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.