Individual provider Active NPI

Marjorie Ann Malbas, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Rochester, MN
National Provider Identifier
1588977284
Registry record updated Sep 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
79212 Issued in MN
Practice address
200 1St St SW
Rochester, MN 55905-0001
Phone
(507) 284-2511
NPI assigned
Jul 22, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 5, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X P8695 TX
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 79212 MN Primary

Addresses

Primary practice location

200 1St St SW
Rochester, MN 55905-0001

Mailing address

PO Box 860912
Minneapolis, MN 55486-0912
Phone (507) 284-2511

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mmalbas1838693@ehrdirect.mayoclinicmsg.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, MN2 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

Enrollment IDStateProvider typePAC IDDetails
I20170914002034 TX Practitioner - Endocrinology 1759655780 Reassigns benefits to 1 organization
I20250916001731 MN Practitioner - Endocrinology 1759655780 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
Other, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians
Christus Trinity Clinic TexasGroup PAC ID 3072426741, 1,540 clinicians

Practice addresses (Care Compare)

200 1St St SW
Rochester, MN 55905-0001
Phone (507) 284-2511

5802 Saratoga Blvd
Suite 150
Corpus Christi, TX 78414-4254
Phone (361) 986-4600

5920 Saratoga Blvd
Suite 395
Corpus Christi, TX 78414-4137
Phone (361) 737-0600

620 S Fleishel Ave
Christus Trinity Clinic
Tyler, TX 75701-2041
Phone (903) 606-4900

630 S Fleishel Ave
Tyler, TX 75701-2041
Phone (903) 606-5560

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
79212MNMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic Current Accepting new patients
Mayo Clinic CurrentSince Aug 11, 2025 Accepting new patients
Christus Trinity Clinic Texas Internal Medicine CurrentSince Oct 10, 2022 Accepting new patients
Christus Trinity Clinic Texas CurrentSince Oct 10, 2022 Accepting new patients
Mayo Clinic CurrentSince Aug 11, 2025 Accepting new patients
Texas Health Care, P.L.L.C. Internal Medicine PastSince Sep 1, 2022 Accepting new patients

Locations

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

5920 Saratoga Blvd
Ste 520
Corpus Christi, TX 78414
Phone (361) 257-2500

630 S Fleishel Ave
Tyler, TX 75701
Phone (903) 510-8888

Interoperability endpoints

  • Direct secure messaging: mmalbas290804@christushealth.direct-ci.net
  • Direct secure messaging: mmalbas1838693@ehrdirect.mayoclinicmsg.org

Organizations & group practices 6

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.

Hospital & facility affiliations 5

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

NPI Registry JSON

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

{
    "created_epoch": "1279756800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757030400000",
    "number": "1588977284",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 1ST ST SW",
            "city": "ROCHESTER",
            "state": "MN",
            "postal_code": "559050001",
            "telephone_number": "507-284-2511"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MALBAS",
        "first_name": "MARJORIE ANN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-07-22",
        "last_updated": "2025-09-05",
        "certification_date": "2025-09-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "TX",
            "license": "P8695",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MN",
            "license": "79212",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmalbas1838693@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "200 1st St SW",
            "city": "Rochester",
            "state": "MN",
            "country_code": "US",
            "postal_code": "559050001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Rochester, MN

Sources for this page

Verify at the official NPI Registry.