PEGGY W WU M.D.
NPI 1366608259
Internal Medicine - Rheumatology in Worcester, MA

Active since July 31, 2008PECOS EnrolledAccepts Medicare Assignment
97.02/100
CMS Quality Rating
119 BELMONT ST, WORCESTER, MA 01605(508) 334-5224(508) 334-1053 Get Directions Write a Review

NPPES record last updated: January 12, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 12, 2023, Nov 2, 2020 (2 updates tracked since 2020).

About Peggy W Wu M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PEGGY W WU M.D. (NPI 1366608259) is an individual rheumatology provider in Worcester, Massachusetts, licensed in Massachusetts (253058) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Healthalliance Hospitals, and is a graduate of Rush Medical College Of Rush University (2003).

NPPES Registry Identity

NPI1366608259
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NamePEGGY W WUCredential: M.D.
Location Address119 BELMONT STWorcester, MA 01605-2903
Mailing AddressPo Box 415348Boston, MA 02241-5348
Fax(508) 334-1053
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 2003
Enumeration DateJuly 31, 2008
Last NPPES UpdateJanuary 12, 20232 updates tracked since enumeration
NPPES CertifiedJanuary 12, 2023
NPI 1366608259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License Licensed in MA · 253058
Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

119 BELMONT ST, Worcester, MA 01605

Other Identifiers 1

Medicaid110093096AMA

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

Peggy W Wu M.d. 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 ID5294886412
PECOS Enrollment IDI20120910000728
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 6

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
186 services142 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
83 services70 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
38 services38 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
36 services33 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
24 services15 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
15 services15 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Umass Memorial Healthalliance Hospitals

Acute Care Hospitals · Leominster, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220001
Location60 Hospital RoadLeominster, MA 01453 · Worcester County
Emergency services

Umass Memorial Health - Harrington Hospital

Acute Care Hospitals · Southbridge, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220019
Location100 South StreetSouthbridge, MA 01550 · Worcester County
Emergency services

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 01605 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
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.

Family Medicine
119 BELMONT ST
WORCESTER, MA 01605
Internal Medicine (Rheumatology)
119 BELMONT ST
WORCESTER, MA 01605
Nurse Practitioner (Neonatal, Critical Care)
119 BELMONT ST
WORCESTER, MA 01605
Obstetrics & Gynecology (Maternal & Fetal Medicine)
119 BELMONT ST
WORCESTER, MA 01605
Nurse Practitioner
119 BELMONT ST
WORCESTER, MA 01605
Social Worker
119 BELMONT ST
WORCESTER, MA 01605
Orthopaedic Surgery
119 BELMONT ST
WORCESTER, MA 01605
Physician Assistant
119 BELMONT ST
WORCESTER, MA 01605

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 Peggy Wu's NPI number?

The NPI number for Peggy Wu is 1366608259. It was assigned to this individual provider in the NPPES registry on July 31, 2008.

Where is Peggy Wu located?

Peggy Wu practices at 119 Belmont St, Worcester, MA 01605. The listed phone number is (508) 334-5224.

What is Peggy Wu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Peggy Wu enrolled in Medicare?

Yes. Peggy Wu 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 Peggy Wu accept?

Health plans from Anthem Blue Cross and Blue Shield list Peggy Wu 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 Peggy Wu affiliated with any hospitals?

According to CMS data, Peggy Wu is affiliated with Umass Memorial Healthalliance Hospitals, Umass Memorial Health - Harrington Hospital and Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Peggy Wu was last updated on January 12, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.