Active NPI
Maisa A Nazzal, M.D.
- Nephrology Physician
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nephrology Physician
- License
- 2016012961
- 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, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Nephrology
- Education
- Other, 2000
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
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
| License | State | Type | Specialty |
|---|---|---|---|
| E7470 | AR | MD | Nephrology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Med Clinical Practice LLC | Current | Accepting new patients | |
| Nice Nephrology, LLC | Nephrology | Current | 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
- 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.
-
- Internal Medicine Physician
- Clayton, MO
- NPI 1699516690
-
- Nephrology Physician
- Saint Louis, MO
- NPI 1801492855
-
- Internal Medicine Physician
- Bridgeton, MO
- NPI 1730259888
-
dba Ozarks Healthcare
- General Acute Care Hospital
- West Plains, MO
- NPI 1831115641
Hospital & facility affiliations 9
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Kansas City, MO
- NPI 1316530462
Dialysis facility
-
dba Bowles Avenue Dialysis
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Fenton, MO
- NPI 1154617892
Dialysis facility
-
dba House Springs Dialysis
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- House Springs, MO
- NPI 1851892731
Dialysis facility
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1639186760
-
dba Christian Hospital
- Ambulance
- Saint Louis, MO
- NPI 1073769329
Hospital
-
dba SSM Health Cardinal Glennon Children's Hospital
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1336387836
-
dba SSM Health St. Clare Hospital - Fenton
- General Acute Care Hospital
- Fenton, MO
- NPI 1851496152
-
dba SSM Health St. Mary's Hospital - St. Louis
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1962572396
-
dba SSM Health Saint Louis University Hospital
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1942685920
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 3, 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.