XIAOFAN GUO
NPI 1366078313
Psychiatry & Neurology - Neurology in Pittsburgh, PA
About Xiaofan Guo NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
XIAOFAN GUO (NPI 1366078313) is an individual neurology provider in Pittsburgh, Pennsylvania, licensed in California (A182587) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Upmc Mercy, and maintains a secondary practice location in Mechanicsburg.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Xiaofan Guo 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 Xiaofan Guo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsburgh, PA 15213
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Chambersburg, PA 17201
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,902 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc Mercy
Acute Care Hospitals · Pittsburgh, PAUpmc Presbyterian Shadyside
Acute Care Hospitals · Pittsburgh, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 16550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Xiaofan Guo's NPI number?
The NPI number for Xiaofan Guo is 1366078313. It was assigned to this individual provider in the NPPES registry on March 20, 2020.
Where is Xiaofan Guo located?
Xiaofan Guo practices at 200 Lothrop St Presbyterian Hospital, Pittsburgh, PA 16550. The listed phone number is (909) 558-4907.
What is Xiaofan Guo's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Xiaofan Guo enrolled in Medicare?
Yes. Xiaofan Guo 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 Xiaofan Guo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Xiaofan Guo reassigns Medicare benefits to 2 organizations: University Of Pittsburgh Physicians (Pittsburgh, PA) and Pinnacle Health Medical Services (Chambersburg, PA). 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 Xiaofan Guo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Xiaofan Guo affiliated with any hospitals?
According to CMS data, Xiaofan Guo is affiliated with Upmc Mercy and Upmc Presbyterian Shadyside.
When was this NPI record last updated?
The NPPES record for Xiaofan Guo was last updated on October 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Xiaofan Guo · NPI 1366078313
Neurology physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 20, 2020.
## Identity
- **NPI:** 1366078313 (Entity type: Individual)
- **Enumerated:** March 20, 2020
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** A182587 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 LOTHROP ST PRESBYTERIAN HOSPITAL, Pittsburgh, PA 16550
- **Phone:** (909) 558-4907
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Pittsburgh Physicians (NPI 1215995402, Pittsburgh, PA); Pinnacle Health Medical Services (NPI 1053097238, Chambersburg, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** October 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1366078313) · Data from the CMS NPPES public registry.