DR. TIMOTHY TINYAU CHANG MD PHD
NPI 1740256569
Orthopaedic Surgery in Hopkinsville, KY
About Dr. Timothy Tinyau Chang Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY TINYAU CHANG MD PHD (NPI 1740256569) is an individual orthopaedic surgery provider in Hopkinsville, Kentucky, licensed in Kentucky (44797) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Jennie Stuart Medical Center, and maintains a secondary practice location in Hopkinsville.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Timothy Tinyau Chang Md Phd 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
2Medicare enrollment records show Timothy Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hopkinsville, KY 42240
- Reassigned Medicare billing, Kentucky enrollment
- 169 clinicians in this Medicare group
Princeton, KY 42445
- Reassigned Medicare billing, Kentucky enrollment
- 37 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.
Areas of Expertise CMS Part B claims 11
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Jennie Stuart Medical Center
Acute Care Hospitals · Hopkinsville, KYCaldwell Medical Center
Critical Access Hospitals · Princeton, KYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 42240 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HOPKINSVILLE, KY 42240
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 Timothy Chang's NPI number?
The NPI number for Timothy Chang is 1740256569. It was assigned to this individual provider in the NPPES registry on February 23, 2006.
Where is Timothy Chang located?
Timothy Chang practices at 105 Keeton Dr, Hopkinsville, KY 42240. The listed phone number is (270) 798-8372.
What is Timothy Chang's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Timothy Chang enrolled in Medicare?
Yes. Timothy Chang 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 Timothy Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Chang reassigns Medicare benefits to 2 organizations: Jennie Stuart Medical Center Inc (Hopkinsville, KY) and Caldwell County Hospital, Inc (Princeton, KY). 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 Timothy Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Chang accept?
Health plans from Anthem Blue Cross and Blue Shield list Timothy Chang 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 Timothy Chang affiliated with any hospitals?
According to CMS data, Timothy Chang is affiliated with Jennie Stuart Medical Center and Caldwell Medical Center.
When was this NPI record last updated?
The NPPES record for Timothy Chang was last updated on June 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.