LARISSA TIAN PA
NPI 1922247345
Physician Assistant in Burlington, MA

Active since February 09, 2009PECOS EnrolledAccepts Medicare Assignment
97.02/100
CMS Quality Rating
41 MALL RD, BURLINGTON, MA 01805(781) 744-8000 Get Directions Write a Review

NPPES record last updated: November 2, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 2, 2022, Oct 4, 2022, Sep 23, 2020 and 2 more (5 updates tracked since 2019).

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 Burlington, Massachusetts, licensed in Massachusetts (PA8833) 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 7 additional practice locations.

NPPES Registry Identity

NPI1922247345
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameLARISSA TIANCredential: PA
Location Address41 MALL RDBurlington, MA 01805-3300
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateFebruary 9, 2009
Last NPPES UpdateNovember 2, 20225 updates tracked since enumeration
NPPES CertifiedNovember 2, 2022
NPI 1922247345 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses Licensed in MA · PA8833 Licensed in GA · 5526 Licensed in VA · 0110006747
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
41 MALL RD, Burlington, MA 01805

Secondary Practice Locations 7

Location 12501 Parkers LnAlexandria, VA 22306-3209 · Phone (703) 664-7000 · Fax (703) 664-7666
Location 244045 Riverside PkwyLeesburg, VA 20176-5101 · Phone (703) 858-6000 · Fax (703) 858-6900
Location 34320 Seminary RdAlexandria, VA 22304-1535 · Phone (703) 504-3000 · Fax (703) 504-3388
Location 43600 Joseph Siewick DrFairfax, VA 22033-1709 · Phone (703) 391-3600 · Fax (703) 391-3414
Location 53300 Gallows RdFalls Church, VA 22042-3300 · Phone (703) 776-4001 · Fax (703) 776-7113
Location 655 Lake Ave NWorcester, MA 01655-0002 · Phone (774) 443-7552 · Fax (774) 441-6086
Location 7119 Belmont StWorcester, MA 01605-2903 · Phone (774) 443-7552 · Fax (774) 441-6086

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.

PECOS PAC ID3274680046
PECOS Enrollment IDI20221028001244
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
36 services21 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
29 services24 patients

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, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01805 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

97.02/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.09
Promoting Interoperability100
Improvement Activities40

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.

Internal Medicine (Interventional Cardiology)
41 MALL RD
BURLINGTON, MA 01805
Hospitalist
41 MALL RD
BURLINGTON, MA 01805
Registered Nurse
41 MALL RD
BURLINGTON, MA 01805
Nurse Practitioner
41 MALL RD
BURLINGTON, MA 01805
Pharmacist
41 MALL RD
BURLINGTON, MA 01805
Student in an Organized Health Care Education/Training Program
41 MALL RD
BURLINGTON, MA 01805
Physician Assistant
41 MALL RD
BURLINGTON, MA 01805
Nurse Practitioner
41 MALL RD
BURLINGTON, MA 01805

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 41 Mall Rd, Burlington, MA 01805. The listed phone number is (781) 744-8000.

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 November 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.