DR. MARGARET ZHI-YIN TSIEN M.D.
NPI 1124349550
Hospitalist in Chicago, IL

Q: What is Margaret Tsien's NPI number?

The NPI number for Margaret Tsien is 1124349550. It was assigned to this individual provider in the NPPES registry on June 21, 2010.

Q: What is Margaret Tsien's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Margaret Tsien was last updated on February 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 21, 2010PECOS EnrolledAccepts Medicare Assignment

5841 S MARYLAND AVE STE MC7082, MEDPEDS RESIDENCY PROGRAM, CHICAGO, IL 60637(773) 702-6840 Get Directions Write a Review

NPPES record last updated: February 1, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Margaret Zhi-yin Tsien M.d. NPPES

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

DR. MARGARET ZHI-YIN TSIEN M.D. (NPI 1124349550) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036134867) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Loyola University Medical Center, and is a graduate of University Of Maryland School Of Medicine (2010).

NPPES Registry Identity

NPI1124349550

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameDR. MARGARET ZHI-YIN TSIENCredential: M.D.

Location Address5841 S MARYLAND AVE STE MC7082, MEDPEDS RESIDENCY PROGRAMChicago, IL 60637-1465

Mailing Address5841 S Maryland Ave Ste Mc7082, Medpeds Residency ProgramChicago, IL 60637-1465

Phone(773) 702-6840

Sole ProprietorYes

Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2010

Enumeration DateJune 21, 2010

Last NPPES UpdateFebruary 1, 2024

NPPES CertifiedFebruary 1, 2024

✔ NPI 1124349550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in IL · 036134867

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125.057854 (IL), 036134867 (IL)

Also ListedPediatricsTaxonomy 208000000X · License 125.057854 (IL)

5841 S MARYLAND AVE STE MC7082, Chicago, IL 60637

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Margaret Zhi-yin Tsien 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 ID3577789031

PECOS Enrollment IDI20140718002208

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.

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

83 services34 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Loyola University Medical Center

Acute Care Hospitals · Maywood, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140276

Location2160 S 1st AvenueMaywood, IL 60153 · Cook County

Emergency services Birthing friendly

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.

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.

SARAH JARJOUR

Internal Medicine