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DR. RENSLOW SHERER M.D.
NPI 1679689939
Internal Medicine - Infectious Disease in Chicago, IL

Active since August 21, 2006PECOS Enrolled
97.71/100
CMS Quality Rating
5841 S MARYLAND AVE, MC 5065, CHICAGO, IL 60637(773) 702-2710(773) 702-8998 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Renslow Sherer M.d. NPPES

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

DR. RENSLOW SHERER M.D. (NPI 1679689939) is an individual infectious disease provider in Chicago, Illinois, licensed in Illinois (3657912) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1679689939
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. RENSLOW SHERERCredential: M.D.
Location Address5841 S MARYLAND AVE, MC 5065Chicago, IL 60637-1447
Mailing Address5841 S Maryland Ave, Mc 5065Chicago, IL 60637-1447 · (773) 702-2710 · Fax (773) 702-8998
Phone(773) 702-2710
Fax(773) 702-8998
Sole ProprietorYes
Enumeration DateAugust 21, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1679689939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in IL · 3657912
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License 3657912 (IL)
5841 S MARYLAND AVE, Chicago, IL 60637
Open in Google Maps ↗

Other Identifiers 1

Medicaid170435IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Renslow Sherer M.d. 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 Renslow Sherer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
16 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality75.43
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

DR. DON MARTINEZ M.D.
Radiology (Diagnostic Radiology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 926-8318
ALEXANDRA DUMITRESCU
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
PELEG HOROWITZ
Neurological Surgery
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
SANDEEP GURBUXANI
Pathology (Hematology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
DR. NIREN GANDRA M.D.
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-0240
ALLIE DAKROUB MD MS
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
SCOTT VASHER MD
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
DR. NATHAN CHARLES NOWALK M.D.
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200

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 Renslow Sherer's NPI number?

The NPI number for Renslow Sherer is 1679689939. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Renslow Sherer located?

Renslow Sherer practices at 5841 S Maryland Ave Mc 5065, Chicago, IL 60637. The listed phone number is (773) 702-2710.

What is Renslow Sherer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Renslow Sherer enrolled in Medicare?

Yes. Renslow Sherer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Renslow Sherer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Renslow Sherer reassigns Medicare benefits to 2 organizations: The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). 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 Renslow Sherer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Renslow Sherer accept?

Health plans from Oscar Health list Renslow Sherer 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 Renslow Sherer was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.