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CAMERON KOESTER DO
NPI 1831619022
Internal Medicine - Cardiovascular Disease in Saint Peters, MO

Active since June 20, 2017PECOS EnrolledAccepts Medicare Assignment
10 HOSPITAL DR STE 100, SAINT PETERS, MO 63376(636) 916-7272(636) 916-7274 Get Directions Write a Review

NPPES record last updated: December 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 22, 2025, Sep 19, 2025, Jun 26, 2024 and 2 more (5 updates tracked since 2017).

About Cameron Koester Do NPPES

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

CAMERON KOESTER DO (NPI 1831619022) is an individual cardiovascular disease provider in Saint Peters, Missouri, licensed in Missouri (2024012287) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and maintains a secondary practice location in Springfield.

NPPES Registry Identity

NPI1831619022
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameCAMERON KOESTERCredential: DO
Location Address10 HOSPITAL DR STE 100Saint Peters, MO 63376-1659
Mailing AddressPo Box 959354Saint Louis, MO 63195-9354 · (636) 916-7272 · Fax (636) 916-7274
Phone(636) 916-7272
Fax(636) 916-7274
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateJune 20, 2017
Last NPPES UpdateDecember 22, 20255 updates tracked since enumeration
NPPES CertifiedDecember 22, 2025
✔ NPI 1831619022 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in MO · 2024012287
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036-152131 (IL), 125070843 (IL)
10 HOSPITAL DR STE 100, Saint Peters, MO 63376
Open in Google Maps ↗

Secondary Practice Location 1

Location 1751 N Rutledge St Ste 1100Springfield, IL 62702-4968 · Phone (217) 545-8000 · Fax (217) 545-4735

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Cameron Koester Do 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 ID143590836
PECOS Enrollment IDI20240722002680
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 Cameron Koester reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Physician Groups Lc
12 mi
Multi-Specialty
670 MASON RIDGE CENTER DR STE 300
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 611 clinicians in this Medicare group
NPI 1285664268 (314) 996-7644

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 6

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
75 services74 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
57 services57 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
43 services43 patients
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016
An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.
34 services34 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.
31 services30 patients
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.
13 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Missouri Baptist Medical Center

Acute Care Hospitals · Town And Country, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260108
Location3015 N Ballas RdTown And Country, MO 63131 · St. Louis County
Emergency services Birthing friendly

Barnes-Jewish St Peters Hospital

Acute Care Hospitals · Saint Peters, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260191
Location10 Hospital DrSaint Peters, MO 63376 · St. Charles County
Emergency services

Ssm St Joseph Hospital West

Acute Care Hospitals · Lake Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260200
Location100 Medical PlazaLake Saint Louis, MO 63367 · St. Charles County
Emergency services Birthing friendly

Progress West Hospital

Acute Care Hospitals · O Fallon, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260219
Location2 Progress Point PkwyO Fallon, MO 63368 · St. Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63376 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
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
Most-billed visit code 99213
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.

ERIN MARIE PALLARDY-SCHWEPPE FNP
Nurse Practitioner
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
DR. SANDEEP HINDUPUR M.D.
Internal Medicine (Interventional Cardiology)
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
MS. SHELBY LYNN LAMKEMEYER PA
Physician Assistant
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
DR. TIMOTHY J MARTIN MD
Internal Medicine (Cardiovascular Disease)
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
DR. MICHAEL A MISSLER D.O.
Internal Medicine (Interventional Cardiology)
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
CRYSTAL L PIPKENS ANP
Nurse Practitioner (Family)
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
DR. MARTIN B AST M.D.
Internal Medicine (Cardiovascular Disease)
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
RIPA K PATEL M.D.
Internal Medicine (Interventional Cardiology)
10 HOSPITAL DR STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272

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 Cameron Koester's NPI number?

The NPI number for Cameron Koester is 1831619022. It was assigned to this individual provider in the NPPES registry on June 20, 2017.

Where is Cameron Koester located?

Cameron Koester practices at 10 Hospital Dr Ste 100, Saint Peters, MO 63376. The listed phone number is (636) 916-7272.

What is Cameron Koester's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Cameron Koester enrolled in Medicare?

Yes. Cameron Koester 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 Cameron Koester's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cameron Koester reassigns Medicare benefits to Physician Groups Lc (Saint Louis, 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 Cameron Koester's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cameron Koester accept?

Health plans from UnitedHealthcare list Cameron Koester 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 Cameron Koester affiliated with any hospitals?

According to CMS data, Cameron Koester is affiliated with Barnes Jewish Hospital, Missouri Baptist Medical Center, Barnes-Jewish St Peters Hospital, Ssm St Joseph Hospital West and Progress West Hospital.

When was this NPI record last updated?

The NPPES record for Cameron Koester was last updated on December 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.