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DR. TZE LYN STEPHANIE TSEENG M.D.
NPI 1346556891
Emergency Medicine in Chicago, IL

Active since August 23, 2010PECOS Enrolled
85.18/100
CMS Quality Rating
1901 W HARRISON ST, CHICAGO, IL 60612(312) 390-2387 Get Directions Write a Review

NPPES record last updated: August 23, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Tze Lyn Stephanie Tseeng M.d. NPPES

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

DR. TZE LYN STEPHANIE TSEENG M.D. (NPI 1346556891) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (125058524) and active in the NPI registry since August 2010. She is enrolled in Medicare PECOS and is a graduate of Chicago College Of Medicine And Surgery (2010).

NPPES Registry Identity

NPI1346556891
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. TZE LYN STEPHANIE TSEENGCredential: M.D.
Location Address1901 W HARRISON STChicago, IL 60612-3714
Mailing Address2424 N Clark St, Apt 204Chicago, IL 60614-2705
Phone(312) 390-2387
Sole ProprietorYes
Medical School CMSChicago College Of Medicine And SurgeryGraduated 2010
Enumeration DateAugust 23, 2010
✔ NPI 1346556891 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 · 125058524
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.
1901 W HARRISON ST, Chicago, IL 60612
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Other Names 1

Other Name (5)Dr. Stephanie Tseeng M.d.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Tze Lyn Stephanie Tseeng M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7618195215
PECOS Enrollment IDI20140822001933
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 Tze Lyn Tseeng reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Faculty Physicians And Surgeons Of Llusm
1,524 mi
Transplant Surgery
2020 WELLNESS WAY, STE 506
Las Vegas, NV 89106
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1124560214 (909) 558-3636
County Of Los Angeles
1,704 mi
Clinic/Center
335 E AVENUE I
Lancaster, CA 93535
  • Reassigned Medicare billing, California enrollment
  • 1,939 clinicians in this Medicare group
NPI 1205354370 (661) 471-4232
Regents Of The University Of
1,734 mi
Emergency Medicine
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 219 clinicians in this Medicare group
NPI 1154379394 (714) 456-8068
Anaheim Emergency Medical Group
1,734 mi
Emergency Medicine
1111 W LA PALMA AVE
Anaheim, CA 92801
  • Reassigned Medicare billing, California enrollment
  • 43 clinicians in this Medicare group
NPI 1114626017 (714) 774-1450
Avalon Medical Development Corporation
1,771 mi
Critical Access
100 FALLS CANYON ROAD
Avalon, CA 90704
  • Reassigned Medicare billing, California enrollment
  • 42 clinicians in this Medicare group
NPI 1346250347 (310) 510-0700

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 9

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
82 services81 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
79 services76 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
71 services71 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
56 services56 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
49 services47 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
38 services38 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

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.

85.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.81
Promoting Interoperability82
Improvement Activities40
Cost64.54

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.

JOHANNA WEFES-POTTER
Emergency Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (847) 843-2000
ARON BERHANU GUDETTA MD
Internal Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-6000
DR. LIGAYA VILLAFRANCA MARASIGAN M.D.
Obstetrics & Gynecology (Gynecology)
1901 W HARRISON ST
CHICAG, IL 60612
Cook County (312) 864-5901
TIN TIN THOMAS M.D.
Internal Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-6000
COOK COUNTY
Pharmacy (Clinic Pharmacy)
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-6189
HELEN ELIZABETH STRAUS MD
Emergency Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-0060
MR. GLEN DERRICK TRAMMELL PA-C
Physician Assistant
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (773) 869-7488
JOHN H STROGER, JR. HOSPITAL OF COOK COUNTY
General Acute Care Hospital
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (773) 319-2085

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 Tze Lyn Tseeng's NPI number?

The NPI number for Tze Lyn Tseeng is 1346556891. It was assigned to this individual provider in the NPPES registry on August 23, 2010. The provider is also known as Dr. Stephanie Tseeng M.D..

Where is Tze Lyn Tseeng located?

Tze Lyn Tseeng practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (312) 390-2387.

What is Tze Lyn Tseeng's specialty?

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

Is Tze Lyn Tseeng enrolled in Medicare?

Yes. Tze Lyn Tseeng is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tze Lyn Tseeng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tze Lyn Tseeng reassigns Medicare benefits to 5 organizations: Faculty Physicians And Surgeons Of Llusm (Las Vegas, NV), County Of Los Angeles (Lancaster, CA), Regents Of The University Of (Orange, CA), Anaheim Emergency Medical Group (Anaheim, CA) and Avalon Medical Development Corporation (Avalon, CA). 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 Tze Lyn Tseeng'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 Tze Lyn Tseeng was last updated on August 23, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.