THOMAS B. JR. CAHILL (MD) – Cardiovascular Disease Physician, NPI 1023128113

THOMAS B. JR. CAHILL (MD) is a healthcare provider. based in O fallon, Illinois. specializing in CARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. 036-060357 (IL). The NPI Number for THOMAS B. JR. CAHILL (MD) is 1023128113

Main info

Male
48 Years Of Experience
Accepts Medicare Assignment
Name
THOMAS B. JR. CAHILL (MD)
NPI
1023128113
Phone
(618) 233-6044
Address
THREE SAINT ELIZABETH BLVD STE 2800
Enumeration Date
30 August 2006
Last Update Date
21 December 2021

Doctor Profile

Medical School Name
SAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
6182336044
Graduation Year
1978 (48 years ago)
PAC ID
0143241703
Group Practice PAC ID
3173435880
Professional Enrollment ID
I20051209000672
Address ID
IL622691099OX3XXXXBLVD401

Contacts

Secure Messaging
tcahill99818@ewd.direct.hshs.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness85
Years active:19State licenses:1Other namesUpdated within 12 months

1,594 CARDIOVASCULAR DISEASE (CARDIOLOGY) in IL

Provider Addresses for THOMAS B. JR. CAHILL (MD)

  • THREE SAINT ELIZABETH BLVD STE 2800

    O FALLON, IL 622691282

    Phone: (618) 233-6044

    Fax: (833) 973-4218

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $77.

Total Amount is formed as General ($77) + Research ($0) + Ownership ($0) = $77.

Last reported payment date: 2023-02-15 • Largest payer in this snapshot: ShockWave Medical, Inc ($77).

Total Amount

$77

General + Research + Ownership

Payments

1

Total payment records

General Amount

$77

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-02-15

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
ShockWave Medical, Inc$77
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-12-09

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20051209000672ICardiovascular Disease (Cardiology)ILTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
93010Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only1,329938$0
99214Established patient office or other outpatient visit, 30-39 minutes660362$0
93306Ultrasound of heart with color-depicted blood flow, rate, direction and valve function300291$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes17277$0
93000Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report134125$0
View full utilization report →

Insurance plans in this area (ZIP 62269)

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Provider's Procedures

THOMAS B. JR. CAHILL (MD) performs procedures in CARDIOVASCULAR DISEASE (CARDIOLOGY). See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
CARDIOVASCULAR DISEASE (CARDIOLOGY)IL93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report913612

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3173435880View full group profile
NameSpecialtyState
Cardiovascular Disease (Cardiology), Internal MedicineIL
Cardiovascular Disease (Cardiology), Internal MedicineMO
Cardiovascular Disease (Cardiology), Internal MedicinePA
-IL
Interventional CardiologyMI
Interventional CardiologyMO
Vascular SurgeryIL
Nurse PractitionerIL
Cardiovascular Disease (Cardiology)IL
-IL

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Frequently asked questions

Is THOMAS B. JR. CAHILL (MD) listed with a National Provider Identifier?
Yes — THOMAS B. JR. CAHILL (MD) has NPI 1023128113 on file in the registry.
Is THOMAS B. JR. CAHILL (MD) shown as active in public data?
Registry records indicate THOMAS B. JR. CAHILL (MD) maintains an active NPI.
What area of care is associated with THOMAS B. JR. CAHILL (MD)?
THOMAS B. JR. CAHILL (MD)'s record emphasizes Cardiovascular Disease Physician. Clinical services aligned with this taxonomy classification.
Is THOMAS B. JR. CAHILL (MD) located near O Fallon?
THOMAS B. JR. CAHILL (MD) currently maps to O Fallon, Illinois in this extract.
Can I trust this NPI listing for THOMAS B. JR. CAHILL (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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