Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Christopher C Shrack , DO

Internal Medicine β€’ Evansville, IN

Active NPI 1740816784 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3700 Washington Ave
Evansville, IN 477140541

Call 8124854000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3700 Washington Ave

Evansville, IN 477140541

Telephone 8124854000
Organization at the Same NPPES Address or Phone
St Elizabeth Ann Seton Hospital Facility NPI 1780686493

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 2 distinct additional practice-address records in Fishers, IN; Vincennes, IN. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Iu Health Medical Group Llc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Marian University College Of Osteopathic Medicine

Graduation Year

2020

30-day fills

159 standardized 30-day fills in 2023

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$684 in 2023

The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $109.67 in 2024

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2024.

Guide: How to read an Open Payments record

Years since graduation

6 years (graduated 2020)

CMS Doctors and Clinicians data list 2020 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2020

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Shrack has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Shrack as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Evansville and Indiana

Billing and prescribing volume is not a quality rating.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Dr. Shrack are from 2023.

97 active clinicians are listed under Internal Medicine with a practice address in Evansville, IN (2,112 in Indiana).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Evansville

3.1% of these 97 clinicians have the CMS telehealth indicator.

55.7% of these 97 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2023), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2024

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $109.67.

Manufacturer Payment Nature Product Type Amount ($)
CALLIDITAS THERAPEUTICS US INC.
Food and Beverage
In-kind items and services
TARPEYO General $109.67

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2023.

CMS Part D Β· Data Year 2023
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 24 1,935 $194.43 β€”
Losartan Potassium Losartan Potassium 16 1,156 $159.02 β€”
Rosuvastatin Calcium Rosuvastatin Calcium 14 1,080 $229.22 β€”
Carvedilol Carvedilol 13 555 $101.77 β€”

Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-06-24
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES IN 11021229A

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES IN 02008405A

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine - Nephrology

NUCC Taxonomy Code: 207RN0300X

License # reported to NPPES IN 02008405A

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.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Indiana Professional Licensing Agency.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NEPHROLOGY

Medicare Enrollment ID

I20250630003124

Enrollment State Jurisdiction

IN

PECOS Control ID

8426470519

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Iu Health Medical Group Llc

13100 E 136th St, Fishers, IN 460379417

Phone: 3179446467

Secondary Practice Locations

520 S 7th St

Vincennes, IN 475911038

Phone: 8128825220

13100 E 136th St

Fishers, IN 460379417

Phone: 3179444370

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

32 listed
Dr. Marcos Alberto , MD

Internal Medicine

NPI 1669121836

Doctor of Medicine (M.D.)

Dr. William Baldwin , MD

Emergency Medicine

NPI 1174938278

Doctor of Medicine (M.D.)

NPI 1497275473

MBMRCP

Dr. Michael Carson , MD

Internal Medicine

NPI 1427684547

Doctor of Medicine (M.D.)

Dr. Amit Chandel , MD

Pediatrics - Neonatal-Perinatal Medicine

NPI 1508185372

Doctor of Medicine (M.D.)

Dr. Nicholas Clough , MD

Internal Medicine

NPI 1639828635

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 24, 2025

Internal Medicine (license number reported to NPPES: IN 02008405A)

πŸ“
Updated Business Mailing Address June 03, 2022

Registered at 1320 SE 2ND ST APT 1105, EVANSVILLE, IN 477133029 (Tel: 3175036742)

βœ…
NPI Profile Active April 13, 2020

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) April 13, 2020

Registered at 3700 WASHINGTON AVE, EVANSVILLE, IN 477140541 (Tel: 8124854000)

πŸ“
Business Mailing Address (Initial Record) April 13, 2020

Registered at 5605 KINGSLEY DR, INDIANAPOLIS, IN 462203403 (Tel: 3175036742)

πŸ‘€
Provider Name / Credentials (Initial Record) April 13, 2020

Recorded as CHRISTOPHER SHRACK, DO

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 13, 2020

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration March 22, 2020

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1740816784
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 22, 2020
Last Update: June 24, 2025
Sole Proprietor: No

Other Internal Medicine Providers in Evansville

All Internal Medicine Providers in Evansville

Mailing Address

1320 Se 2nd St Apt 1105

Evansville, IN 477133029

Phone: 3175036742

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.