Active NPI
Aliza Machefsky
- Obstetrics Physician
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics Physician
- License
- 86229
- Practice address
- 6420 Clayton Rd
St. Mary'S Health Center
Saint Louis, MO 63117-1811 - Phone
- (314) 781-4772
- NPI assigned
- May 9, 2016
- 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 |
|---|---|---|---|---|
| Obstetrics & Gynecology Physician | 207V00000X | 2016020843 | MO | |
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Obstetrics Physician | 207VX0000X | 86229 | GA | Primary |
| Obstetrics & Gynecology Physician | 207V00000X | 86229 | GA |
Addresses
Primary practice location
6420 Clayton Rd
St. Mary'S Health Center
Saint Louis, MO 63117-1811
Mailing address
6420 Clayton Rd
St. Mary'S Health Center
Saint Louis, MO 63117-1811
Phone (314) 781-4772
Medicare participation
Medicare enrollment files- 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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Obstetrics/Gynecology
- Education
- Drexel University College of Medicine, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1365 Clifton Rd NE
Atlanta, GA 30322-1013
Phone (404) 778-7525
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 94.51 of 100
- Quality
- 80.61
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2016020843 | MO | MD | Obstetrics & Gynecology Physician |
| 86229 | GA | MD | Obstetrics Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Emory Medical Care Foundation Inc | Obstetrics & Gynecology | Current | Accepting new patients |
| The Emory Clinic Inc | Current | Accepting new patients | |
| Emory Medical Care Foundation Inc | Current | Accepting new patients | |
| Dekalb Medical Psych Unit | Past | Accepting new patients | |
| Emory Health Care | Past | Accepting new patients | |
| Dekalb Medical Center, Inc. | Past | Accepting new patients |
Locations
80 Jesse Hill Jr Dr SE
Atlanta, GA 30303
Phone (404) 616-4370
1365 Clifton Rd NE
Atlanta, GA 30322
Phone (404) 778-7525
2201 Henderson Mill Rd NE
Ste 160
Atlanta, GA 30345
Phone (404) 251-2193
6325 Hospital Pkwy
Johns Creek, GA 30097
Phone (404) 251-1880
Interoperability endpoints
- amachefsky302341@direct.emory.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.
-
- Internal Medicine Physician
- Atlanta, GA
- NPI 1396798229
-
- Internal Medicine Physician
- Atlanta, GA
- NPI 1063452381
Obstetrics & Gynecology
-
- Diagnostic Radiology Physician
- Atlanta, GA
- NPI 1225294739
-
- General Acute Care Hospital
- Decatur, GA
- NPI 1093716979
-
- Psychiatric Hospital Unit
- Decatur, GA
- NPI 1821099474
-
- Neurology Physician
- Atlanta, GA
- NPI 1376642751
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Atlanta, GA
- NPI 1144203563
-
- General Acute Care Hospital
- Decatur, GA
- NPI 1093716979
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1462752000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779408000000",
"number": "1841646908",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6420 CLAYTON RD",
"address_2": "ST. MARY'S HEALTH CENTER",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631171811",
"telephone_number": "314-781-4772"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6420 CLAYTON RD",
"address_2": "ST. MARY'S HEALTH CENTER",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631171811",
"telephone_number": "314-781-4772"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MACHEFSKY",
"first_name": "ALIZA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2016-05-09",
"last_updated": "2026-05-22",
"certification_date": "2026-05-22",
"status": "A"
},
"taxonomies": [
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "MO",
"license": "2016020843",
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207VX0000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology, Obstetrics",
"state": "GA",
"license": "86229",
"primary": true
},
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "GA",
"license": "86229",
"primary": false
}
],
"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 May 22, 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.