Mahfuz Oumer Yonis, M.D.

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

94950 Issued in GA

Practice address

275 Collier Rd NW Ste 290
Atlanta, GA 30309-1700

Phone

(404) 352-3300

Fax

(404) 477-2276

NPI assigned

Oct 26, 2008

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 GA

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

Nephrology

Education

Howard University College of Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nephrology Consultants of Georgia, P.C.Group PAC ID 7012903800, 13 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• DaVita Camp Creek Dialysis Dialysis facility, Atlanta, GA, CCN 852574
• Piedmont Hospital, Inc Hospital, Atlanta, GA, CCN 110083
• Piedmont Rockdale Hospital Hospital, Conyers, GA, CCN 110091
• Piedmont Fayette Hospital Hospital, Fayetteville, GA, CCN 110215
• Wellstar Kennestone Regional Medical Center Hospital, Marietta, GA, CCN 110035

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Nephrology Consultants of Georgia, P.C.

  • Specialist
  • Atlanta, GA
  • NPI 1265502892
  Medicare reassignment Care Compare group
• Frederick Health Hospital Inc

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)

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

• Fayette Community Hospital, Inc.

  • General Acute Care Hospital
  • Fayetteville, GA
  • NPI 1528027240
  Care Compare affiliation
• Kennestone Hospital, Inc.

  • General Acute Care Hospital
  • Marietta, GA
  • NPI 1649248626
  Care Compare affiliation
• Piedmont Hospital, Inc

  • General Acute Care Hospital
  • Atlanta, GA
  • NPI 1962461681
  Care Compare affiliation
• Piedmont Rockdale Hospital Inc.

  • General Acute Care Hospital
  • Conyers, GA
  • NPI 1306355680
  Care Compare affiliation

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

{
    "created_epoch": "1224979200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1164675898",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "275 COLLIER RD NW STE 290",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303091700",
            "telephone_number": "404-352-3300",
            "fax_number": "404-477-2276"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "275 COLLIER RD NW STE 290",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303091700",
            "telephone_number": "404-352-3300",
            "fax_number": "404-477-2276"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YONIS",
        "first_name": "MAHFUZ",
        "middle_name": "OUMER",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-10-26",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "296661",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "GA",
            "license": "94950",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jane Wendy Yoffe, NP
• Messeret Yohannes, PMHNP-BC
• Meghan Yokem, MS LAT ATC OTC
• Adrian D Yokley, LCSW
• Yolo Therapy LLC
• Jina Yoo, DDS
• Justin Jaeyoung Yoo, MD
• Michelle Yoo, MD
• Mina Yoo
• Heeja Yoon, PHARM.D

• Nephrology Physician in Atlanta, GA
• Providers in Atlanta, GA by specialty
• Nephrology Physician in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 12, 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.