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RICHARD B WARSHELL MD
NPI 1336119163
Internal Medicine in Chicago, IL

Active since January 24, 2006PECOS Enrolled
3601 W DEVON AVE STE 2, CHICAGO, IL 60659(872) 293-6978 Get Directions Write a Review

NPPES record last updated: July 26, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jul 26, 2026, Jan 5, 2021, Oct 4, 2015 (3 updates tracked since 2015).

About Richard B Warshell Md NPPES

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

RICHARD B WARSHELL MD (NPI 1336119163) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036.107962) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336119163
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameRICHARD B WARSHELLCredential: MD
Location Address3601 W DEVON AVE STE 2Chicago, IL 60659-1200
Mailing Address2839 W Morse AveChicago, IL 60645-2929 · (773) 814-3425
Phone(872) 293-6978
Sole ProprietorYes
Enumeration DateJanuary 24, 2006
Last NPPES UpdateJuly 26, 20263 updates tracked since enumeration
NPPES CertifiedJuly 26, 2026
✔ NPI 1336119163 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036.107962
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.
3601 W DEVON AVE STE 2, Chicago, IL 60659
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Wellmark Health Plan of Iowa, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Richard B Warshell 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Richard Warshell reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Health System Corporation
82 mi
Multi-Specialty
580 N WASHINGTON ST
Janesville, WI 53548
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,155 clinicians in this Medicare group
NPI 1598718603 (608) 741-7630
Moundview Memorial Hospital & Clinics, Inc.
159 mi
Rural Health
207 N PIONEER PARK RD, UNIT 8
Westfield, WI 53964
  • Reassigned Medicare billing, Wisconsin enrollment
  • 280 clinicians in this Medicare group
NPI 1861829194 (608) 296-6350

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60659 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

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 Richard Warshell's NPI number?

The NPI number for Richard Warshell is 1336119163. It was assigned to this individual provider in the NPPES registry on January 24, 2006.

Where is Richard Warshell located?

Richard Warshell practices at 3601 W Devon Ave Ste 2, Chicago, IL 60659. The listed phone number is (872) 293-6978.

What is Richard Warshell's specialty?

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

Is Richard Warshell enrolled in Medicare?

Yes. Richard Warshell is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Richard Warshell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Richard Warshell reassigns Medicare benefits to 2 organizations: Mercy Health System Corporation (Janesville, WI) and Moundview Memorial Hospital & Clinics, Inc. (Westfield, WI). Each 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 Richard Warshell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Richard Warshell accept?

Health plans from Wellmark Health Plan of Iowa, Inc. list Richard Warshell as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Richard Warshell was last updated on July 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.