Timothy Tianma Xu, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

MD488897 Issued in PA

Practice address

840 Walnut St Ste 1020
Philadelphia, PA 19107-5109

Phone

(800) 331-6634

NPI assigned

Mar 21, 2021

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

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in MN, PA2 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 2

Specialty

Ophthalmology

Education

Mayo Medical School, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Retinovitreous Associates LTDGroup PAC ID 2961485412, 35 clinicians

Wills Eye Ophthalmology Clinic, IncGroup PAC ID 9133025166, 146 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Wills Eye Hospital Hospital, Philadelphia, PA, CCN 390331
• Mayo Clinic Hospital Rochester Hospital, Rochester, MN, CCN 240010
• Thomas Jefferson University Hospital Hospital, Philadelphia, PA, CCN 390174

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: timothy.xu.p1@direct.willseye.nextgenshare.com
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: txu510949@ehrdirect.mayoclinicmsg.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.

• Retinovitreous Associates LTD

  • Ophthalmology Physician
  • Plymouth Meeting, PA
  • NPI 1659326452
  Medicare reassignment Care Compare group NPD
• Wills Eye Ophthalmology Clinic, Inc

  • Ophthalmology Physician
  • Philadelphia, PA
  • NPI 1184624009
  Medicare reassignment Care Compare group NPD
• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1922074434
  Medicare reassignment Care Compare group NPD
• Mayo Clinic

  • Clinical Medical Laboratory
  • Rochester, MN
  • NPI 1083249577
  NPD
• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1881018208
  NPD
• Retinovitreous Associates LTD

  • Ophthalmology Physician
  • Wilmington, DE
  • NPI 1952552630
  NPD

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

• City of Phila Trustee Acting by the BRD of Dir of City Trusts

  • Special Hospital
  • Philadelphia, PA
  • NPI 1881899284
  Care Compare affiliation
• Thomas Jefferson University Hospitals Inc

  • General Acute Care Hospital
  • Philadelphia, PA
  • NPI 1215916002
  Care Compare affiliation
• Mayo Clinic Hospital-Rochester

  • General Acute Care Hospital
  • Rochester, MN
  • NPI 1841266194
  Care Compare affiliation

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

{
    "created_epoch": "1616284800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750636800000",
    "number": "1699351635",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 WALNUT ST STE 1020",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191075109",
            "telephone_number": "800-331-6634"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "840 WALNUT ST STE 1020",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191075109",
            "telephone_number": "800-331-6634"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559050002",
            "country_code": "US",
            "telephone_number": "507-284-2511",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "XU",
        "first_name": "TIMOTHY",
        "middle_name": "TIANMA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-21",
        "last_updated": "2025-06-23",
        "certification_date": "2025-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "MN",
            "license": "31532",
            "primary": false
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "PA",
            "license": "MD488897",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "txu510949@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "200 1st St SW",
            "city": "Rochester",
            "state": "MN",
            "country_code": "US",
            "postal_code": "559050002",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "txu@midatlret.intellechartdirect.net",
            "affiliation": "N",
            "endpointDescription": "Direct Messaging",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "840 Walnut St Ste 1020",
            "city": "Philadelphia",
            "state": "PA",
            "country_code": "US",
            "postal_code": "191075109",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Kai Tai Xu, MD
• Kelly Xu
• Linda Xu, MD
• Melissa C Xu
• Min Xu, O.D.
• Xiaowei Xu, MD
• Katie Ting Xue, BA
• Yuxuan Xue
• Y & Y Boon Care Service Inc
• Y. Kumar DMD LLC

• Ophthalmology Physician in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Ophthalmology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 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.