John L Black, M.D.

Primary specialty

Clinical Pathology/Laboratory Medicine PhysicianTaxonomy code 207ZP0105X

License

26917 Issued in MN

Practice address

200 1St St SW
Rochester, MN 55905-0001

Phone

(507) 284-2511

NPI assigned

Dec 29, 2005

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 MN

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1922074434
  Medicare reassignment
• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1538568928
  NPD

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

{
    "created_epoch": "1135814400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789084800000",
    "number": "1790762862",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 1ST ST SW",
            "city": "ROCHESTER",
            "state": "MN",
            "postal_code": "559050001",
            "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": "BLACK",
        "first_name": "JOHN",
        "middle_name": "L",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-29",
        "last_updated": "2026-09-11",
        "certification_date": "2026-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MN",
            "license": "26917",
            "primary": false
        },
        {
            "code": "207ZP0105X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology/Laboratory Medicine",
            "state": "MN",
            "license": "26917",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer Bjorgum, NCTMB
• Karen Marie Bjorngaard, O.D.
• Dalliah Mashon Black, MD
• David F Black, M.D.
• Emily R Black, NP
• Britney Marie Blacker
• Alice Deshelia Blackmon
• Allison Blackwell, RN
• Simon Francis Blaine-Sauer, MD
• Kristi Yvonne Blair, MA CCC-SLP

• Clinical Pathology/Laboratory Medicine Physician in Rochester, MN
• Providers in Rochester, MN by specialty
• Clinical Pathology/Laboratory Medicine Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.