DR. JOHN CHANG LUK M.D.
NPI 1154360790
Pediatrics in Austin, TX
About Dr. John Chang Luk M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN CHANG LUK M.D. (NPI 1154360790) is an individual pediatrics provider in Austin, Texas, licensed in Texas (L2434) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Hahnemann University College Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses
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. John Chang Luk 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.
Medicare Billing Reassignment
Medicare enrollment records show John Luk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78723
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Dell Childrens Medical Group
- 576 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 78701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
AUSTIN, TX 78701
AUSTIN, TX 78701
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 John Luk's NPI number?
The NPI number for John Luk is 1154360790. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is John Luk located?
John Luk practices at 313 E 12th St Ste. 104, Austin, TX 78701. The listed phone number is (409) 772-2222.
What is John Luk's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is John Luk enrolled in Medicare?
Yes. John Luk 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 John Luk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Luk reassigns Medicare benefits to Dell Children's Medical Group (Austin, TX). 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 John Luk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Luk accept?
Health plans from Harbor Health and Sendero Health Plans, Local Nonprofit list John Luk 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.
When was this NPI record last updated?
The NPPES record for John Luk was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. John Chang Luk, M.D. · NPI 1154360790
Pediatrics physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since June 6, 2006.
## Identity
- **NPI:** 1154360790 (Entity type: Individual)
- **Enumerated:** June 6, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** L2434 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 313 E 12TH ST, STE. 104, Austin, TX 78701-1954
- **Phone:** (409) 772-2222 · **Fax:** (409) 772-0885
## 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:** Dell Children's Medical Group (NPI 1326072943, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Hahnemann University College Of Medicine, class of 1996
## Record status
- **NPPES last updated:** July 13, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1154360790) · Data from the CMS NPPES public registry.