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DR. TOBIN R EFFEREN M.D.
NPI 1780778472
Emergency Medicine in Chicago, IL

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment
1501 S CALIFORNIA AVE, CHICAGO, IL 60608(773) 257-6843 Get Directions Write a Review

NPPES record last updated: September 12, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Tobin R Efferen M.d. NPPES

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

DR. TOBIN R EFFEREN M.D. (NPI 1780778472) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036115967) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of New York University School Of Medicine (2003).

NPPES Registry Identity

NPI1780778472
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. TOBIN R EFFERENCredential: M.D.
Location Address1501 S CALIFORNIA AVEChicago, IL 60608
Mailing Address3537 Paysphere CirChicago, IL 60674 · (708) 786-2900
Phone(773) 257-6843
Sole ProprietorNo
Medical School CMSNew York University School Of MedicineGraduated 2003
Enumeration DateOctober 3, 2006
Last NPPES UpdateSeptember 12, 2018
✔ NPI 1780778472 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IL · 036115967
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1501 S CALIFORNIA AVE, Chicago, IL 60608
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Tobin R Efferen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123025392
PECOS Enrollment IDI20061031000532
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

5

Medicare enrollment records show Tobin Efferen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mount Sinai Community Foundation
Same address
Rural
1501 S CALIFORNIA AVE
Chicago, IL 60608
  • Reassigned Medicare billing, Illinois enrollment
  • 646 clinicians in this Medicare group
NPI 1104858125 (773) 257-2000
Cepamerica Illinois LLP
0.1 mi
Emergency Medicine
1500 S FAIRFIELD AVE
Chicago, IL 60608
  • Reassigned Medicare billing, Illinois enrollment
  • 982 clinicians in this Medicare group
NPI 1265954465 (773) 542-2000
Advocate Health And Hospitals Corporation
1.3 mi
General Acute Care Hospital
3435 W VAN BUREN ST
Chicago, IL 60624
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1801838339 (773) 265-7700
Community First Healthcare Of Illinois, Inc.
6.9 mi
Diagnostic Radiology
5645 W ADDISON ST
Chicago, IL 60634
  • Reassigned Medicare billing, Illinois enrollment
  • 174 clinicians in this Medicare group
NPI 1053102269 (773) 282-7000
Dupage Medical Group Ltd
17 mi
Multi-Specialty
1100 W 31ST ST, STE 300
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 1,061 clinicians in this Medicare group
NPI 1801833983 (630) 469-9200

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 60608 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
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.

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.

STEPHANIE JORDAN
Community Health Worker
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 542-2000
DR. SURAIYA I ALVI M.D.
Pediatrics
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 257-6843
MOUNT SINAI COMMUNITY FOUNDATION
Physician Assistant (Surgical)
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 257-6663
DR. AMARDEEP SINGH M.D.
Emergency Medicine
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 257-6843
DR. NANCY A SIBIGTROTH M.D.
Radiology (Diagnostic Radiology)
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 257-6498
DR. SHANTA NATH M.D.
Pediatrics
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 257-6184
DR. MOHAMMED AZHER KASSEM M.D
Internal Medicine
1501 S CALIFORNIA AVE, MT SINAI HOSPITAL, CANCER CARE CENTER
CHICAGO, IL 60608
Cook County (773) 257-6120
ALYNA CHIEN MD
Pediatrics
1501 S CALIFORNIA AVE
CHICAGO, IL 60608
Cook County (773) 257-6770

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 Tobin Efferen's NPI number?

The NPI number for Tobin Efferen is 1780778472. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Tobin Efferen located?

Tobin Efferen practices at 1501 S California Ave, Chicago, IL 60608. The listed phone number is (773) 257-6843.

What is Tobin Efferen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Tobin Efferen enrolled in Medicare?

Yes. Tobin Efferen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Tobin Efferen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tobin Efferen reassigns Medicare benefits to 5 organizations: Mount Sinai Community Foundation (Chicago, IL), Cepamerica Illinois LLP (Chicago, IL), Advocate Health And Hospitals Corporation (Chicago, IL), Community First Healthcare Of Illinois, Inc. (Chicago, IL) and Dupage Medical Group Ltd (Downers Grove, 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 Tobin Efferen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Tobin Efferen was last updated on September 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.