DR. JACK H LIU MD
NPI 1821218843
Emergency Medicine in New York, NY
About Dr. Jack H Liu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JACK H LIU MD (NPI 1821218843) is an individual emergency medicine provider in New York, New York, licensed in New York (243263-1) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Jack H Liu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Jack Liu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10011
- Reassigned Medicare billing, New York and Connecticut enrollments
- Also billed through NPI 1851132831 (Connecticut)
- 596 clinicians in this Medicare group
Berkeley Heights, NJ 07922
- Reassigned Medicare billing, New Jersey enrollment
- 1,184 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10010 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10010
NEW YORK, NY 10010
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 Jack Liu's NPI number?
The NPI number for Jack Liu is 1821218843. It was assigned to this individual provider in the NPPES registry on May 1, 2007.
Where is Jack Liu located?
Jack Liu practices at 37 West 23rd Street Ground Floor, New York, NY 10010. The listed phone number is (646) 596-9267.
What is Jack Liu's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jack Liu enrolled in Medicare?
Yes. Jack Liu is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jack Liu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jack Liu reassigns Medicare benefits to 2 organizations: City Medical Of Upper East Side, PLLC (New York, NY) and Summit Medical Group PA (Berkeley Heights, NJ). 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 Jack Liu'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 Jack Liu was last updated on February 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Jack H Liu, MD · NPI 1821218843
Emergency Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since May 1, 2007.
## Identity
- **NPI:** 1821218843 (Entity type: Individual)
- **Enumerated:** May 1, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 243263-1 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 37 WEST 23RD STREET, GROUND FLOOR, New York, NY 10010
- **Phone:** (646) 596-9267
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): City Medical Of Upper East Side, PLLC (NPI 1902513278, New York, NY); Summit Medical Group PA (NPI 1942254347, Berkeley Heights, NJ) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 18, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1821218843) · Data from the CMS NPPES public registry.