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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. THOMAS CHRISTOPHER WESTBROOK MD
NPI 1346760493
Internal Medicine - Medical Oncology in Saint Louis, MO

Active since June 20, 2017PECOS Enrolled
4500 FOREST PARK AVE, SAINT LOUIS, MO 63108(314) 747-1171 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 29, 2026, Jul 24, 2023, Jun 17, 2020 and 1 more (4 updates tracked since 2017).

About Dr. Thomas Christopher Westbrook Md NPPES

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

DR. THOMAS CHRISTOPHER WESTBROOK MD (NPI 1346760493) is an individual medical oncology provider in Saint Louis, Missouri, licensed in Missouri (2026030942) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and maintains a secondary practice location in Shiloh.

NPPES Registry Identity

NPI1346760493
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. THOMAS CHRISTOPHER WESTBROOKCredential: MD
Location Address4500 FOREST PARK AVESaint Louis, MO 63108-2114
Mailing Address660 S Euclid Ave, Msc 8056-0029-0011St. Louis, MO 63110-1010 · (314) 252-7073
Phone(314) 747-1171
Sole ProprietorNo
Medical School CMSUniversity Of Cincinnati College Of MedicineGraduated 2017
Enumeration DateJune 20, 2017
Last NPPES UpdateSeptember 29, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2026
✔ NPI 1346760493 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
Licenses✔ Licensed in MO · 2026030942✔ Licensed in IL · 036165419
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
4500 FOREST PARK AVE, Saint Louis, MO 63108
Open in Google Maps ↗

Secondary Practice Location 1

Location 11418 Cross St Ste 180Shiloh, IL 62269-2965 · Phone (618) 607-1340

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Christopher Westbrook Md 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 ID840562682
PECOS Enrollment IDI20230807001409
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.

Areas of Expertise CMS Part B claims 5

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
180 services81 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
67 services27 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.
50 services42 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
36 services36 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.
29 services23 patients

Hospital Affiliations CMS Care Compare 2

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

Rush Oak Park Hospital

Acute Care Hospitals · Oak Park, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140063
Location520 S Maple AveOak Park, IL 60304 · Cook County
Emergency services

Rush University Medical Center

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140119
Location1653 West Congress ParkwayChicago, IL 60612 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63108 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
$169.38 typical visit price
range $55.65 – $169.38
Typical copayment $42.34 (range $13.91 – $42.34)
Most-billed visit code 99205
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 20

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

MS. KIM M FRENCH ANP
Nurse Practitioner
4500 FOREST PARK AVE, DIV IM HEMATOLOGY, 6TH FL
SAINT LOUIS, MO 63108
St. Louis City (314) 362-7216
DR. RAVI VIJ MD
Internal Medicine (Medical Oncology)
4500 FOREST PARK AVE, DIV IM BONE MARROW TRANSPLANT, 5TH, 6TH, 8TH FL
SAINT LOUIS, MO 63108
St. Louis City (314) 454-8304
MR. STEVEN CHARLES FUCHS JR. PHARM.D.
Pharmacist
4500 FOREST PARK AVE
SAINT LOUIS, MO 63108
St. Louis City (314) 657-9013
MS. MEGAN ELIZABETH NEUDECKER FNP
Nurse Practitioner (Family)
4500 FOREST PARK AVE, DIV SURG ONCOLOGY, 5TH FL
SAINT LOUIS, MO 63108
St. Louis City (314) 362-2280
MS. CATHERINE C ROGERS ANP
Nurse Practitioner (Adult Health)
4500 FOREST PARK AVE, DIV IM HEMATOLOGY, 6TH FL
SAINT LOUIS, MO 63108
St. Louis City (314) 362-7216
DR. ZEYNEP GUL MD
Urology
4500 FOREST PARK AVE, DIV SURG UROLOGY, 5TH FL
SAINT LOUIS, MO 63108
St. Louis City (314) 362-8200
MS. STEPHANIE ANNE VOLLMER ANP
Nurse Practitioner
4500 FOREST PARK AVE, DIV IM BONE MARROW TRANSPLANT, 5TH, 6TH, 8TH FL
SAINT LOUIS, MO 63108
St. Louis City (314) 454-8304
MS. KAYLA THERESE JARRETT PA
Physician Assistant
4500 FOREST PARK AVE, DEPT NEUROLOGICAL SURGERY, STE 1B
SAINT LOUIS, MO 63108
St. Louis City (314) 362-3577

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 Thomas Westbrook's NPI number?

The NPI number for Thomas Westbrook is 1346760493. It was assigned to this individual provider in the NPPES registry on June 20, 2017.

Where is Thomas Westbrook located?

Thomas Westbrook practices at 4500 Forest Park Ave, Saint Louis, MO 63108. The listed phone number is (314) 747-1171.

What is Thomas Westbrook's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Thomas Westbrook enrolled in Medicare?

Yes. Thomas Westbrook 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.

What insurance does Thomas Westbrook accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Thomas Westbrook 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 Thomas Westbrook affiliated with any hospitals?

According to CMS data, Thomas Westbrook is affiliated with Rush Oak Park Hospital and Rush University Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Westbrook was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.