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DR. SARAH L. RENFERT M.D.
NPI 1932171600
Emergency Medicine in Ellisville, MO

Active since February 06, 2006PECOS EnrolledAccepts Medicare Assignment
225 CLARKSON RD, ELLISVILLE, MO 63011(636) 207-8880(636) 256-7797 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Sarah L. Renfert M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SARAH L. RENFERT M.D. (NPI 1932171600) is an individual emergency medicine provider in Ellisville, Missouri, licensed in Missouri (2000163032) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1932171600
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. SARAH L. RENFERTCredential: M.D.
Location Address225 CLARKSON RDEllisville, MO 63011-2278
Mailing Address524 Queens Court PlaceSt. Peters, MO 63376
Phone(636) 207-8880
Fax(636) 256-7797
Sole ProprietorYes
Medical School CMSOtherGraduated 1994
Enumeration DateFebruary 6, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1932171600 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in MO · 2000163032
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
225 CLARKSON RD, Ellisville, MO 63011
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sarah L. Renfert M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537181383
PECOS Enrollment IDI20051221000603
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show Sarah Renfert reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Physicians Of St. Luke's, LLC
5.7 mi
Emergency Medicine
232 S WOODS MILL RD
Chesterfield, MO 63017
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: Emergency Physicians Of St Lukes LLC
  • 124 clinicians in this Medicare group
NPI 1215359815 (314) 205-6926
Physician Specialists Of St Lukes LLC
5.7 mi
Internal Medicine
232 S WOODS MILL RD
Chesterfield, MO 63017
  • Reassigned Medicare billing, Missouri enrollment
  • 215 clinicians in this Medicare group
NPI 1235168410 (314) 434-1500
St Louis Medical Clinic, P.C.
7.8 mi
Infusion Therapy
3009 N BALLAS RD, SUITE 100B
Saint Louis, MO 63131
  • Reassigned Medicare billing, Missouri enrollment
  • 13 clinicians in this Medicare group
NPI 1174505127 (314) 432-1111
St Lukes Immediate Care LLC
9.4 mi
Family Medicine
11550 OLIVE BLVD
Creve Coeur, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: St. Luke's Immediate Care, LLC
  • 48 clinicians in this Medicare group
NPI 1679426514 (314) 576-2306
Total Access Urgent Care, PC
12 mi
Urgent Care
9556 MANCHESTER RD
Saint Louis, MO 63119
  • Reassigned Medicare billing, Missouri enrollment
  • 111 clinicians in this Medicare group
NPI 1962684886 (314) 961-2255
Fast Track Medical LLC
16 mi
Urgent Care
5701 CHIPPEWA ST
Saint Louis, MO 63109
  • Reassigned Medicare billing, Missouri enrollment
  • 19 clinicians in this Medicare group
NPI 1568770626 (314) 921-7300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
73 services63 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
39 services35 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
18 services16 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260179
Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63011 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WESTGLEN FAMILY PHYSICIANS, LLC
Family Medicine
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (366) 857-7156
WILLIAM MARKUS KOEPPEL D.O.
Family Medicine
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (706) 865-4001
WESTGLEN FAMILY PHYSICIANS, LLC
Clinic/Center (Primary Care)
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715
JEANNE MARIE RITCHIE
Physician Assistant
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 230-5050
DR. CYNTHIA J POELKER M.D.
Family Medicine
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 230-5050
BARBARA ANNE O'BRIEN DO
Family Medicine (Adult Medicine)
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715
EILEEN HOLT NP
Nurse Practitioner (Family)
225 CLARKSON RD
ELLISVILLE, MO 63011
St. Louis County (636) 685-7715
CHRISTINE HELMBRECHT FNP-BC
Nurse Practitioner (Family)
225 CLARKSON RD
BALLWIN, MO 63011
St. Louis County (636) 685-7715

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sarah Renfert's NPI number?

The NPI number for Sarah Renfert is 1932171600. It was assigned to this individual provider in the NPPES registry on February 6, 2006.

Where is Sarah Renfert located?

Sarah Renfert practices at 225 Clarkson Rd, Ellisville, MO 63011. The listed phone number is (636) 207-8880.

What is Sarah Renfert's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Sarah Renfert enrolled in Medicare?

Yes. Sarah Renfert is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Sarah Renfert's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Renfert reassigns Medicare benefits to 6 organizations: Emergency Physicians Of St. Luke's, LLC (Chesterfield, MO), Physician Specialists Of St Lukes LLC (Chesterfield, MO), St Louis Medical Clinic, P.C. (Saint Louis, MO), St Lukes Immediate Care LLC (Creve Coeur, MO), Total Access Urgent Care, PC (Saint Louis, MO) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sarah Renfert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Sarah Renfert affiliated with any hospitals?

According to CMS data, Sarah Renfert is affiliated with St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Sarah Renfert was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.