St. John'S Mercy Support Services

St. John'S Mercy Support Services is a healthcare organization registered as Maternal & Fetal Medicine Physician in O Fallon, MO, holding Type 2 (organization) NPI 1568570620 since 2006. The authorized official on file is Paul Hintze, Cmo/Vice President, Medical Affairs.

✓ Active NPI ✓ Valid NPI checksum

NPI	1568570620
Entity type	Organization (Type 2)
Legal business name	St. John'S Mercy Support Services
Practice address	300 WINDING WOODS DR, SUITE 112, O Fallon, MO, 63366
Phone	6363796600
Enumeration date	2006-08-28
Last updated in NPPES	2020-08-22

Authorized official

Name	Paul Hintze
Title	Cmo/Vice President, Medical Affairs
Phone	3142511955

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207VM0101X	Maternal & Fetal Medicine Physician	Primary	—	—

Copy-ready billing details

Provider: St. John'S Mercy Support Services
NPI: 1568570620
Taxonomy: 207VM0101X (Maternal & Fetal Medicine Physician)
Address: 300 WINDING WOODS DR, SUITE 112, O Fallon, MO, 63366

Providers at this address

NPI	Name	Type	Specialty	Location
1487747879	Sondra Mcclanahan	Individual	Family Nurse Practitioner	O Fallon, MO
1629148648	Louis Gaefke	Individual	Podiatrist	Ofallon, MO
1124165428	Julie Stewart	Individual	Foot & Ankle Surgery Podiatrist	O Fallon, MO
1275730111	Margaretta Mendenhall	Individual	Obstetrics & Gynecology Physician	O Fallon, MO
1841464625	Chris Blanner	Individual	Family Medicine Physician	O Fallon, MO
1952563496	Ddk, Lc	Organization	Podiatrist	O Fallon, MO
1871755306	Ddk, LLC	Organization	Podiatrist	O Fallon, MO
1144482688	Ddk, Lc	Organization	Podiatrist	O Fallon, MO

Verify this record

Cross-check NPI 1568570620 against the authoritative CMS record: view St. John'S Mercy Support Services 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

Where is St. John'S Mercy Support Services located?

The practice location on file with NPPES is in O Fallon, MO.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.