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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.

MS. LEXI KREMER-CALLAHAN MD
NPI 1124722061
Family Medicine in Troy, IL

Active since March 27, 2023PECOS Enrolled
7342 STATE ROUTE 162, TROY, IL 62294(618) 343-3722 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 13, 2026, Oct 5, 2023, Mar 27, 2023 (3 updates tracked since 2023).

About Ms. Lexi Kremer-callahan Md NPPES

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

MS. LEXI KREMER-CALLAHAN MD (NPI 1124722061) is an individual family medicine provider in Troy, Illinois, licensed in Illinois (036177170) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124722061
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMS. LEXI KREMER-CALLAHANCredential: MD
Location Address7342 STATE ROUTE 162Troy, IL 62294-3162
Mailing Address7342 State Route 162Troy, IL 62294-3162 · (618) 343-3722
Phone(618) 343-3722
Sole ProprietorNo
Enumeration DateMarch 27, 2023
Last NPPES UpdateAugust 13, 20263 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1124722061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036177170
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
7342 STATE ROUTE 162, Troy, IL 62294
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Lexi Kremer-callahan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62294 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
$88.44 typical visit price
range $56.28 – $173.35
Typical copayment $22.11 (range $14.07 – $43.33)
Most-billed visit code 99203
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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

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

KATELIN A KRYSTOWIAK MD
Family Medicine
7342 STATE ROUTE 162
TROY, IL 62294
Madison County (618) 343-3722

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 Lexi Kremer-callahan's NPI number?

The NPI number for Lexi Kremer-callahan is 1124722061. It was assigned to this individual provider in the NPPES registry on March 27, 2023.

Where is Lexi Kremer-callahan located?

Lexi Kremer-callahan practices at 7342 State Route 162, Troy, IL 62294. The listed phone number is (618) 343-3722.

What is Lexi Kremer-callahan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Lexi Kremer-callahan enrolled in Medicare?

Yes. Lexi Kremer-callahan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Lexi Kremer-callahan was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.