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REGENT MEDICAL SPECIALISTS LLC
NPI 1942159553
Internal Medicine in Aurora, IL

Active since January 26, 2026
2112 W GALENA BLVD, AURORA, IL 60506(331) 454-1915 Get Directions Write a Review

NPPES record last updated: January 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Regent Medical Specialists Llc NPPES

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

REGENT MEDICAL SPECIALISTS LLC (NPI 1942159553) is a healthcare organization registered as an internal medicine in Aurora, Illinois and active in the NPI registry since January 2026. The organization lists William Mollohan, Do, as its authorized official.

NPPES Registry Identity

NPI1942159553
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameREGENT MEDICAL SPECIALISTS LLC
Location Address2112 W GALENA BLVDAurora, IL 60506-3255
Mailing Address2112 W Galena BlvdAurora, IL 60506-3255
Phone(331) 454-1915
Organization SubpartNo
Authorized OfficialWilliam MollohanDo · (331) 454-1915
Enumeration DateJanuary 26, 2026
NPPES CertifiedJanuary 26, 2026
✔ NPI 1942159553 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
2112 W GALENA BLVD, Aurora, IL 60506
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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)

Regent Medical Specialists Llc 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 Regent Medical Specialists LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

William Mollohan, D.O.
Internal Medicine
NPI 1720006919
535 FAIRWAY DR SUITE 107
Naperville, IL 60563
(630) 548-5936
✔ PECOS✔ Accepts Medicare8.1 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 Regent Medical Specialists LLC's NPI number?

The NPI number for Regent Medical Specialists LLC is 1942159553. It was assigned to this organization in the NPPES registry on January 26, 2026.

Where is Regent Medical Specialists LLC located?

Regent Medical Specialists LLC is located at 2112 W Galena Blvd, Aurora, IL 60506. The listed phone number is (331) 454-1915.

What is Regent Medical Specialists LLC's specialty?

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

Is Regent Medical Specialists LLC enrolled in Medicare?

Yes. Regent Medical Specialists LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Regent Medical Specialists LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Regent Medical Specialists LLC. 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 Regent Medical Specialists LLC was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.