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DR. SARAH K SUNDET D.O., MBA
NPI 1316186836
Internal Medicine - Nephrology in Festus, MO

Active since February 05, 2009PECOS EnrolledAccepts Medicare Assignment
1400 US HIGHWAY 61 STE 240A, FESTUS, MO 63028(636) 937-3337(636) 931-7671 Get Directions Write a Review

NPPES record last updated: May 28, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Sarah K Sundet D.o., Mba NPPES

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

DR. SARAH K SUNDET D.O., MBA (NPI 1316186836) is an individual nephrology provider in Festus, Missouri, licensed in Missouri (2013007632) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Jefferson, and maintains a secondary practice location in Bonne Terre.

NPPES Registry Identity

NPI1316186836
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameDR. SARAH K SUNDETCredential: D.O., MBA
Location Address1400 US HIGHWAY 61 STE 240AFestus, MO 63028-4141
Mailing Address1265 Graham Rd Ste 1Florissant, MO 63031-8018 · (314) 741-1600 · Fax (314) 741-1677
Phone(636) 937-3337
Fax(636) 931-7671
Sole ProprietorNo
Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2008
Enumeration DateFebruary 5, 2009
Last NPPES UpdateMay 28, 2024
NPPES CertifiedMay 28, 2024
✔ NPI 1316186836 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in MO · 2013007632
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1400 US HIGHWAY 61 STE 240A, Festus, MO 63028
Open in Google Maps ↗

Secondary Practice Location 1

Location 155 Nesbit Dr Ste BBonne Terre, MO 63628-1353 · Phone (636) 937-3337 · Fax (636) 931-7671

Other Identifiers 1

Medicaid200006213MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

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 K Sundet D.o., Mba 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 ID244470912
PECOS Enrollment IDI20130830000114
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 Reassignment

Medicare enrollment records show Sarah Sundet reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

St Louis Kidney Care LLC
40 mi
Nephrology
1265 GRAHAM RD STE 1
Florissant, MO 63031
  • Reassigned Medicare billing, Missouri enrollment
  • 8 clinicians in this Medicare group
NPI 1780058727 (314) 741-1600

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 10

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
436 services105 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.
394 services229 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
140 services108 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
133 services21 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
107 services32 patients
Home dialysis services per month (20 years or older) 90966
Home dialysis services provide kidney treatment for patients aged 20 or older right in their own homes. This service includes necessary equipment, supplies, and support for performing dialysis. It's a convenient option that allows patients to maintain their daily routines while receiving essential care.
84 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Mercy Hospital Jefferson

Acute Care Hospitals · Festus, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260023
Location1400 Us Highway 61Festus, MO 63028 · Jefferson County
Emergency services

Parkland Health Center

Acute Care Hospitals · Farmington, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260163
Location1101 W LibertyFarmington, MO 63640 · St. Francois County
Emergency services Birthing friendly

Mercy Hospital Perry

Critical Access Hospitals · Perryville, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number261311
Location434 North West StreetPerryville, MO 63775 · Perry County
Emergency services

Iron County Medical Center

Critical Access Hospitals · Pilot Knob, MO
OwnershipGovernment - Hospital District or Authority
CMS Certification Number261336
Location301 North Highway 21Pilot Knob, MO 63663 · Iron County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63028 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
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 2

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

JENNIFER TERESA FRENCH A-GNP-C
Nurse Practitioner
1400 US HIGHWAY 61 STE 240A
FESTUS, MO 63028
Jefferson County (636) 937-3337
MRS. ANA ISABEL STARK MD
Internal Medicine (Nephrology)
1400 US HIGHWAY 61 STE 240A
FESTUS, MO 63028
Jefferson County (636) 937-3337

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 Sundet's NPI number?

The NPI number for Sarah Sundet is 1316186836. It was assigned to this individual provider in the NPPES registry on February 5, 2009.

Where is Sarah Sundet located?

Sarah Sundet practices at 1400 Us Highway 61 Ste 240A, Festus, MO 63028. The listed phone number is (636) 937-3337.

What is Sarah Sundet's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Sarah Sundet enrolled in Medicare?

Yes. Sarah Sundet 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 organization bills Medicare for Sarah Sundet's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Sundet reassigns Medicare benefits to St Louis Kidney Care LLC (Florissant, MO). The 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 Sundet's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sarah Sundet accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 5 other insurers list Sarah Sundet as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Sarah Sundet affiliated with any hospitals?

According to CMS data, Sarah Sundet is affiliated with Mercy Hospital Jefferson, Parkland Health Center, Mercy Hospital Perry and Iron County Medical Center.

When was this NPI record last updated?

The NPPES record for Sarah Sundet was last updated on May 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.