Sides Group Inc.
Sides Group Inc. is a healthcare organization registered as Family Medicine Physician in Festus, MO, holding Type 2 (organization) NPI 1598952541 since 2007. The authorized official on file is Janet Leittermann, Office Manager.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1598952541 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Sides Group Inc. |
| Other name | <Unavail> |
| Practice address | 1216 W MAIN ST, Festus, MO, 63028 |
| Phone | 6369373611 |
| Fax | 6369313612 |
| Enumeration date | 2007-10-03 |
| Last updated in NPPES | 2010-04-30 |
Authorized official
| Name | Janet Leittermann |
|---|---|
| Title | Office Manager |
| Phone | 6369373611 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207Q00000X | Family Medicine Physician | Primary | — | — |
Copy-ready billing details
Provider: Sides Group Inc. NPI: 1598952541 Taxonomy: 207Q00000X (Family Medicine Physician) Address: 1216 W MAIN ST, Festus, MO, 63028
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1952309791 | Gary Sides | Individual | Family Medicine Physician | Festus, MO |
| 1821096652 | Kevin Sides | Individual | Family Medicine Physician | Festus, MO |
| 1487987210 | Dr. Micheal Yankowitz LLC | Organization | Foot & Ankle Surgery Podiatrist | Festus, MO |
| 1801253612 | St. Anthony'S Physician Organization | Organization | Family Medicine Physician | Festus, MO |
| 1902369671 | James Green | Individual | Nurse Practitioner | Festus, MO |
Verify this record
Cross-check NPI 1598952541 against the authoritative CMS record: view Sides Group Inc. on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is Sides Group Inc.?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-04-30.