ANTONY HSIEH
NPI 1629495593
Internal Medicine - Gastroenterology in Chicago, IL
About Antony Hsieh NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANTONY HSIEH (NPI 1629495593) is an individual gastroenterology provider in Chicago, Illinois, licensed in Massachusetts (1020675) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Johns Hopkins University School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses 2
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
Antony Hsieh 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.
Medicare Billing Reassignment
Medicare enrollment records show Antony Hsieh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salem, MA 01970
- Reassigned Medicare billing, Massachusetts enrollment
- 994 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
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 Antony Hsieh's NPI number?
The NPI number for Antony Hsieh is 1629495593. It was assigned to this individual provider in the NPPES registry on March 27, 2014.
Where is Antony Hsieh located?
Antony Hsieh practices at 240 E Huron St Mcgaw Pavillon Suite 1-200, Chicago, IL 60611. The listed phone number is (312) 503-7975.
What is Antony Hsieh's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Antony Hsieh enrolled in Medicare?
Yes. Antony Hsieh 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 organization bills Medicare for Antony Hsieh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Antony Hsieh reassigns Medicare benefits to Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, MA). The 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 Antony Hsieh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Antony Hsieh affiliated with any hospitals?
According to CMS data, Antony Hsieh is affiliated with North Shore Medical Center -.
When was this NPI record last updated?
The NPPES record for Antony Hsieh was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Antony Hsieh · NPI 1629495593
Gastroenterology physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 27, 2014.
## Identity
- **NPI:** 1629495593 (Entity type: Individual)
- **Enumerated:** March 27, 2014
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 1020675 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 240 E HURON ST, MCGAW PAVILLON SUITE 1-200, Chicago, IL 60611-2909
- **Phone:** (312) 503-7975
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mass General Brigham Medical Group Northern Massachusetts Inc (NPI 1588606123, Salem, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** June 9, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1629495593) · Data from the CMS NPPES public registry.