DR. WINNIE OOI MD
NPI 1174530893
Internal Medicine - Infectious Disease in Burlington, MA
About Dr. Winnie Ooi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WINNIE OOI MD (NPI 1174530893) is an individual infectious disease provider in Burlington, Massachusetts, licensed in Massachusetts (48015) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Winnie Ooi Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Winnie Ooi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1063447316 (Massachusetts)
- 1,574 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.
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.
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.
BURLINGTON, MA 01805
BURLINGTON, MA 01805
BURLINGTON, MA 01805
BURLINGTON, MA 01805
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 Winnie Ooi's NPI number?
The NPI number for Winnie Ooi is 1174530893. It was assigned to this individual provider in the NPPES registry on August 2, 2006.
Where is Winnie Ooi located?
Winnie Ooi practices at Lahey Clinic 41 Mall Road, Burlington, MA 01805. The listed phone number is (781) 744-8869.
What is Winnie Ooi's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Winnie Ooi enrolled in Medicare?
Yes. Winnie Ooi is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Winnie Ooi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Winnie Ooi reassigns Medicare benefits to Lahey Clinic, Inc. (Burlington, MA). The 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 Winnie Ooi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Winnie Ooi accept?
Health plans from Taro Health list Winnie Ooi 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.
When was this NPI record last updated?
The NPPES record for Winnie Ooi was last updated on November 29, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Winnie Ooi, MD · NPI 1174530893
Infectious Disease physician in Burlington, Massachusetts. Individual provider, active in the CMS NPPES registry since August 2, 2006.
## Identity
- **NPI:** 1174530893 (Entity type: Individual)
- **Enumerated:** August 2, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 48015 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** LAHEY CLINIC, 41 MALL ROAD, Burlington, MA 01805-0001
- **Phone:** (781) 744-8869
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 29, 2010
- **Other identifiers:** Medicaid 110040678A (MA); Medicare UPIN D82864 (MA); Medicare PIN UX0527 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1174530893) · Data from the CMS NPPES public registry.