Gonzalo Matzumura Umemoto, MD

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

2020039264 Issued in MO

Practice address

1 Barnes Jewish Hospital PLZ
Div Im Nephrology
Saint Louis, MO 63110-1003

Phone

(314) 362-7603

Fax

(314) 747-5213

NPI assigned

Jun 17, 2016

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

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

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

NephrologyAlso: Internal Medicine

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Washington UniversityGroup PAC ID 9830008770, 2,968 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• DaVita St. Louis Dialysis Center Dialysis facility, Saint Louis, MO, CCN 262503
• Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032
• Barnes-Jewish West County Hospital Hospital, Creve Coeur, MO, CCN 260162
• Memorial Hospital Hospital, Belleville, IL, CCN 140185
• Missouri Baptist Medical Center Hospital, Saint Louis, MO, CCN 260108
• Barnes-Jewish St Peters Hospital Hospital, Saint Peters, MO, CCN 260191

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

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gmatzumuraumemoto995032@direct.carenet.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.

• Washington University

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Saint Louis, MO
  • NPI 1841221116
  Medicare reassignment Care Compare group NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1992746903
  Medicare reassignment

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

• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827
  Care Compare affiliation
• Barnes Jewish St Peters Hospital Inc

  • General Acute Care Hospital
  • Saint Peters, MO
  • NPI 1144238908
  Care Compare affiliation
• Barnes Jewish West County Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1831107895
  Care Compare affiliation
• Missouri Baptist Medical Center

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1487663506
  Care Compare affiliation
• Protestant Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Belleville, IL
  • NPI 1982796181
  Care Compare affiliation

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

{
    "created_epoch": "1466121600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1700236072",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-362-7603",
            "fax_number": "314-747-5213"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "address_2": "DIV IM NEPHROLOGY",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "314-362-7603",
            "fax_number": "314-747-5213"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATZUMURA UMEMOTO",
        "first_name": "GONZALO",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-06-17",
        "last_updated": "2025-04-17",
        "certification_date": "2021-02-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2020039264",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MO",
            "license": "2020039264",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200086457",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "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 IM Nephrology",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101003",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Sydney Lauren Matusik, PA
• Margaret Mary Matusofsky, M.S.
• Amanda Lynne Matysik, ACNP
• Craig Matzes
• Dawn Matzker, RN
• Carly Marie Maucione, MD
• Kurtis Benjamin Mauer, M.D.
• Melissa Maugeri
• Rebecca J Maul, CRNA
• Ashley Maull, PMHNP

• Nephrology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Nephrology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 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.