Individual provider Active NPI

Maisa A Nazzal, M.D.

  • Nephrology Physician
  • Saint Louis, MO
National Provider Identifier
1295991073
Registry record updated Nov 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
2016012961 Issued in MO
Practice address
675 Old Ballas Rd Ste 104
Saint Louis, MO 63141-7083
Phone
(314) 993-4949
Fax
(314) 993-4945
NPI assigned
Aug 1, 2008
Last updated
Nov 3, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 3, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 29008 OK
Nephrology Physician 207RN0300X 036147677 IL
Nephrology Physician 207RN0300X E7470 AR
Nephrology Physician 207RN0300X 2016012961 MO Primary

Addresses

Primary practice location

675 Old Ballas Rd Ste 104
Saint Louis, MO 63141-7083

Mailing address

PO Box 315
Ballwin, MO 63022-0315
Phone (419) 508-6851

Other practice location 1

401 Corporate Park Dr
Clayton, MO 63105-4201
Phone (636) 288-4149

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20160811000072 MO Practitioner - NephrologyPractitioner - Internal Medicine 9335368315 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Other, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Med Clinical Practice LLCGroup PAC ID 9537605274, 16 clinicians

Practice addresses (Care Compare)

1011 Bowles Ave
Suite 240
Fenton, MO 63026-2395
Phone (855) 314-4663

401 Corporate Park Dr
Clayton, MO 63105-4201
Phone (716) 292-6551

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
E7470ARMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Med Clinical Practice LLC CurrentSince Nov 3, 2025 Accepting new patients
Nice Nephrology, LLC Nephrology CurrentSince Feb 1, 2021 Accepting new patients
Doctors Group , PC Past Accepting new patients
Ozarks Medical Center Past Accepting new patients

Locations

1011 Bowles Ave
Ste 240
Fenton, MO 63026
Phone (855) 314-4663

2025 Zumbehl Rd
Saint Charles, MO 63303
Phone (314) 492-4020

11160 Village North Dr
Saint Louis, MO 63136
Phone (314) 355-8010

11278 Schuetz Rd
Saint Louis, MO 63146
Phone (314) 991-4066

3009 N Ballas Rd
Ste 142
Saint Louis, MO 63131
Phone (314) 924-3924

401 Corporate Park Dr
Saint Louis, MO 63105
Phone (314) 725-7447

555 N New Ballas Rd
Ste 210
Saint Louis, MO 63141
Phone (314) 432-4999

675 Old Ballas Rd
Ste 104
Saint Louis, MO 63141
Phone (314) 720-0900

10 Hospital Dr
Fl 3
Saint Peters, MO 63376
Phone (314) 576-5545

5400 Executive Centre Pkwy
Saint Peters, MO 63376
Phone (636) 288-4149

Interoperability endpoints

  • Direct secure messaging: mnazzal134838@direct.carenet.org

Organizations & group practices 4

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.

Hospital & facility affiliations 9

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": "1217548800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762128000000",
    "number": "1295991073",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 315",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630220315",
            "telephone_number": "419-508-6851"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "675 OLD BALLAS RD STE 104",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631417083",
            "telephone_number": "314-993-4949",
            "fax_number": "314-993-4945"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "401 Corporate Park Dr",
            "address_purpose": "LOCATION",
            "city": "Clayton",
            "state": "MO",
            "postal_code": "631054201",
            "country_code": "US",
            "telephone_number": "636-288-4149",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NAZZAL",
        "first_name": "MAISA",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-08-01",
        "last_updated": "2025-11-03",
        "certification_date": "2025-11-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "OK",
            "license": "29008",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "IL",
            "license": "036147677",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "AR",
            "license": "E7470",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MO",
            "license": "2016012961",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.