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JOEL S. LEIFHEIT M.D., P.C.
NPI 1841312980
Internal Medicine in Peru, IL

Active since April 06, 2007
920 WEST ST, SUITE 111, PERU, IL 61354(815) 223-4273(815) 223-4328 Get Directions Write a Review

NPPES record last updated: January 7, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Joel S. Leifheit M.d., P.c. NPPES

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

JOEL S. LEIFHEIT M.D., P.C. (NPI 1841312980) is a healthcare organization registered as an internal medicine in Peru, Illinois and active in the NPI registry since April 2007. The organization lists Joel S Leifheit, President, as its authorized official.

NPPES Registry Identity

NPI1841312980
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameJOEL S. LEIFHEIT M.D., P.C.
Location Address920 WEST ST, SUITE 111Peru, IL 61354-2763
Mailing Address920 West St, Suite 111Peru, IL 61354-2763 · (815) 223-4273 · Fax (815) 223-4328
Phone(815) 223-4273
Fax(815) 223-4328
Organization SubpartNo
Authorized OfficialJoel S LeifheitPresident · (815) 223-4273
Enumeration DateApril 6, 2007
Last NPPES UpdateJanuary 7, 2008
✔ NPI 1841312980 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
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.
Also ListedPediatricsTaxonomy 208000000X
920 WEST ST, Peru, IL 61354
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Other Identifiers 2

Medicare UPING35403IL
Medicare ID-Type UnspecifiedL83797IL

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joel S. Leifheit M.d., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Joel S. Leifheit M.D., P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Joel Leifheit, MD
Internal Medicine
NPI 1871696229
920 WEST ST SUITE 111
Peru, IL 61354
(815) 223-4273
✔ PECOS✔ Accepts Medicare0.2 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Joel S. Leifheit M.D., P.C.'s NPI number?

The NPI number for Joel S. Leifheit M.D., P.C. is 1841312980. It was assigned to this organization in the NPPES registry on April 6, 2007.

Where is Joel S. Leifheit M.D., P.C. located?

Joel S. Leifheit M.D., P.C. is located at 920 West St Suite 111, Peru, IL 61354. The listed phone number is (815) 223-4273.

What is Joel S. Leifheit M.D., P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Joel S. Leifheit M.D., P.C. enrolled in Medicare?

Yes. Joel S. Leifheit M.D., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Joel S. Leifheit M.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Joel S. Leifheit M.D., P.C.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Joel S. Leifheit M.D., P.C. was last updated on January 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.