Mei San Tang, MD

Primary specialty

Clinical Pathology PhysicianTaxonomy code 207ZC0006X

License

14219290-1205 Issued in UT

Practice address

1 Barnes Jewish Hospital PLZ
Div PA Lab and Genomic Med
Saint Louis, MO 63110-1003

Phone

(314) 362-5641

Fax

(314) 362-0369

NPI assigned

Jul 17, 2018

Last updated

Feb 10, 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 3

Addresses

Other identifiers 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in IL, UT2 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

Pathology

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Utah Adult ServicesGroup PAC ID 0941525273, 1,758 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

84.2 of 100Reported as group

Quality

71.6

Promoting interoperability

100

Improvement activities

40

Cost

75.75

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mtang782605@direct.med.utah.edu

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.

• University of Utah Adult Services

  • General Practice Physician
  • Salt Lake City, UT
  • NPI 1114321981
  Medicare reassignment Care Compare group NPD
• Washington University Physicians in Illinois, Inc

  • Multi-Specialty Clinic/Center
  • O'Fallon, IL
  • NPI 1477076263
  Medicare reassignment NPD
• Washington University Physicians in Illinois, Inc

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1457203135
  NPD
• University of Utah Adult Services

  dba University of Utah Hospital Radiology Department

  • Diagnostic Radiology Physician
  • Salt Lake City, UT
  • NPI 1598169419
  NPD
• University of Utah Adult Services

  dba University of Utah Hospital Pathology Department

  • Anatomic Pathology & Clinical Pathology Physician
  • Salt Lake City, UT
  • NPI 1912301714
  NPD
• Washington University Physicians in Illinois, Inc.

  • Multi-Specialty Clinic/Center
  • Belleville, IL
  • NPI 1811497043
  NPD

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

{
    "created_epoch": "1531785600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770681600000",
    "number": "1700362316",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 60352",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631600352",
            "telephone_number": "314-362-5641",
            "fax_number": "314-362-0369"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "address_2": "DIV PA LAB AND GENOMIC MED",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "314-362-5641",
            "fax_number": "314-362-0369"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TANG",
        "first_name": "MEI SAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-07-17",
        "last_updated": "2026-02-10",
        "certification_date": "2026-02-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZB0001X",
            "taxonomy_group": "",
            "desc": "Pathology, Blood Banking & Transfusion Medicine",
            "state": "MO",
            "license": "2021025565",
            "primary": false
        },
        {
            "code": "207ZP0105X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology/Laboratory Medicine",
            "state": "MO",
            "license": "2021025565",
            "primary": false
        },
        {
            "code": "207ZC0006X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology",
            "state": "UT",
            "license": "14219290-1205",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200062391",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mtang782605@direct.med.utah.edu",
            "affiliation": "Y",
            "affiliationName": "University of Utah",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "50 N Medical Dr",
            "city": "Salt Lake City",
            "state": "UT",
            "country_code": "US",
            "postal_code": "841320100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "1 Barnes Jewish Hospital Plz",
            "address_2": "Div PA Lab and Genomic Med",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101003",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• CHI-Tsai Tang, MD
• David Tang, MD, FRCSC
• Jia Tang, MD
• Jie Tang, MD
• Kerry Chen Nien Tang, MD
• Sisi Tang, MD
• Tony Thien Tang, M. D.
• Yunshuo Tang, MD
• Toshibumi Taniguchi, M.D.
• Aline T Tanios, MD

• Clinical Pathology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Clinical Pathology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 10, 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.