Are you Margaret Z. Tsien, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileMargaret Z. Tsien, M.D. is a hospitalist based in Chicago, IL. Margaret is a 2010 graduate of University of Maryland School of Medicine. Margaret is also listed as specializing in internal medicine and pediatrics. According to Medicare claims data, Margaret cared for 34 Medicare patients across 83 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes. The provider's National Provider Identifier (NPI) is 1124349550.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
5841 S MARYLAND AVE STE MC7082 MEDPEDS RESIDENCY PROGRAM
Chicago, IL 60637
Within Hospital Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Brain & nerves
Breathing & lungs
Digestive health
Endocrine
General medical
Heart & Circulation
Heart & circulation
Infections
Liver & Digestive
Lung Infections
Nutrition
Allergic Reactions
Blood Clots
Blood Disorders
Brain & Nerves
Emergencies
Hormones & diabetes
Kidney & urinary
Lungs & Breathing
Access & tubes
Addiction Medicine
Breathing support
Critical Care
Diagnostic procedures
Emergency Care
Heart Procedures
Hospital services
Kidney Care
Medication & fluids
Mental Health
Neurological Care
Rehabilitation
Urinary Care
Airway & Breathing
Diagnostic Testing
Draining fluids
Joint Procedures
Lung Procedures
Nutrition Support
83 services · 34 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
83 | Less often than most peers in Hospitalist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Margaret Z. Tsien is a hospitalist in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Margaret Z. Tsien is listed at 5841 S Maryland Ave Ste Mc7082 Medpeds Residency Program, Chicago, IL 60637. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (773) 702-6840. Contact the office directly to confirm availability and scheduling.
NPI registry
Margaret Z. Tsien's National Provider Identifier is 1124349550. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Margaret Z. Tsien attended University of Maryland School of Medicine, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
Margaret Z. Tsien has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Margaret Z. Tsien the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Margaret Z. Tsien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.
A GigHz company · Founder: Pouyan Golshani, MD