LARISSA TIAN PA
NPI 1922247345
Physician Assistant in Alexandria, VA
About Larissa Tian Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LARISSA TIAN PA (NPI 1922247345) is an individual physician assistant in Alexandria, Virginia, licensed in Virginia (0110006747) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
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
Larissa Tian Pa 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22304 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.
ALEXANDRIA, VA 22304
ALEXANDRIA, VA 22304
ALEXANDRIA, VA 22304
ALEXANDRIA, VA 22304
ALEXANDRIA, VA 22304
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 Larissa Tian's NPI number?
The NPI number for Larissa Tian is 1922247345. It was assigned to this individual provider in the NPPES registry on February 9, 2009.
Where is Larissa Tian located?
Larissa Tian practices at 4320 Seminary Rd, Alexandria, VA 22304. The listed phone number is (703) 504-3000.
What is Larissa Tian's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Larissa Tian enrolled in Medicare?
Yes. Larissa Tian 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.
Is Larissa Tian affiliated with any hospitals?
According to CMS data, Larissa Tian is affiliated with Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Larissa Tian was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.
# Larissa Tian, PA · NPI 1922247345
Physician Assistant physician in Alexandria, Virginia. Individual provider, active in the CMS NPPES registry since February 9, 2009.
## Identity
- **NPI:** 1922247345 (Entity type: Individual)
- **Enumerated:** February 9, 2009
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** 0110006747 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 4320 SEMINARY RD, Alexandria, VA 22304-1535
- **Phone:** (703) 504-3000 · **Fax:** (703) 504-3388
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** August 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1922247345) · Data from the CMS NPPES public registry.