DR. PETER LIAW MD
NPI 1922635507
Radiology - Diagnostic Radiology in New York, NY
About Dr. Peter Liaw Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER LIAW MD (NPI 1922635507) is an individual diagnostic radiology provider in New York, New York, licensed in New York (336767) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Piedmont Newton Hospital, and is a graduate of University Of Virginia School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Dr. Peter Liaw Md 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 Reassignments
4Medicare enrollment records show Peter Liaw reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cartersville, GA 30121
- Reassigned Medicare billing, Georgia and New York enrollments
- 71 clinicians in this Medicare group
Cartersville, GA 30121
- Reassigned Medicare billing, Georgia and New York enrollments
- 75 clinicians in this Medicare group
Stockbridge, GA 30281
- Reassigned Medicare billing, Georgia enrollment
- 565 clinicians in this Medicare group
Carrollton, GA 30117
- Reassigned Medicare billing, Georgia enrollment
- 53 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Piedmont Newton Hospital
Acute Care Hospitals · Covington, GAPiedmont Cartersville Medical Center
Acute Care Hospitals · Cartersville, GAPiedmont Rockdale Hospital
Acute Care Hospitals · Conyers, GAPiedmont Henry Hospital
Acute Care Hospitals · Stockbridge, GAPiedmont Mountainside Hospital Inc
Acute Care Hospitals · Jasper, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 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.
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
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 Peter Liaw's NPI number?
The NPI number for Peter Liaw is 1922635507. It was assigned to this individual provider in the NPPES registry on March 24, 2020.
Where is Peter Liaw located?
Peter Liaw practices at 550 1st Ave, New York, NY 10016. The listed phone number is (646) 929-7800.
What is Peter Liaw's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Peter Liaw enrolled in Medicare?
Yes. Peter Liaw 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 organizations bill Medicare for Peter Liaw's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Liaw reassigns Medicare benefits to 4 organizations: Summit Radiology Services P C (Cartersville, GA), Summit Imaging Services LLC (Cartersville, GA), Piedmont Professional Services, LLC (Stockbridge, GA) and Tanner Imaging Center (Carrollton, GA). 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 Peter Liaw's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Liaw accept?
Health plans from Oscar Health list Peter Liaw as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Peter Liaw affiliated with any hospitals?
According to CMS data, Peter Liaw is affiliated with Piedmont Newton Hospital, Piedmont Cartersville Medical Center, Piedmont Rockdale Hospital, Piedmont Henry Hospital and Piedmont Mountainside Hospital Inc.
When was this NPI record last updated?
The NPPES record for Peter Liaw was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Peter Liaw, MD · NPI 1922635507
Diagnostic Radiology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 24, 2020.
## Identity
- **NPI:** 1922635507 (Entity type: Individual)
- **Enumerated:** March 24, 2020
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 336767 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 550 1ST AVE, New York, NY 10016-6402
- **Phone:** (646) 929-7800
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Summit Radiology Services P C (NPI 1174572374, Cartersville, GA); Summit Imaging Services LLC (NPI 1134984982, Cartersville, GA); Piedmont Professional Services, LLC (NPI 1104088905, Stockbridge, GA); Tanner Imaging Center (NPI 1154820876, Carrollton, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Virginia School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** September 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1922635507) · Data from the CMS NPPES public registry.