DR. TIMOTHY TIANMA XU MD
NPI 1699351635
Ophthalmology in Philadelphia, PA
About Dr. Timothy Tianma Xu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY TIANMA XU MD (NPI 1699351635) is an individual ophthalmology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD488897) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains a secondary practice location in Rochester.
NPPES Registry Identity
Specialties & Licenses
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Timothy Tianma Xu 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.
Areas of Expertise CMS Part B claims 9
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Hospital Rochester
Acute Care Hospitals · Rochester, MNThomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PAWills Eye Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 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.
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 Xu's NPI number?
The NPI number for Timothy Xu is 1699351635. It was assigned to this individual provider in the NPPES registry on March 21, 2021.
Where is Timothy Xu located?
Timothy Xu practices at 840 Walnut St Ste 1020, Philadelphia, PA 19107. The listed phone number is (800) 331-6634.
What is Timothy Xu's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Timothy Xu enrolled in Medicare?
Yes. Timothy Xu 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.
What insurance does Timothy Xu accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Timothy Xu 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 Xu affiliated with any hospitals?
According to CMS data, Timothy Xu is affiliated with Mayo Clinic Hospital Rochester, Thomas Jefferson University Hospital and Wills Eye Hospital.
When was this NPI record last updated?
The NPPES record for Timothy Xu was last updated on June 23, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
