CHRISTINE M. FITZGIBBONS M.D.
NPI 1194771220
Internal Medicine - Sleep Medicine in Westborough, MA
About Christine M. Fitzgibbons M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINE M. FITZGIBBONS M.D. (NPI 1194771220) is an individual sleep medicine provider in Westborough, Massachusetts, licensed in Massachusetts (224279) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses 4
Other Names 1
Other Identifiers 1
Accepted Insurance
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
Christine M. Fitzgibbons 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.
Medicare Billing Reassignment
Medicare enrollment records show Christine Fitzgibbons reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01581 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Christine Fitzgibbons's NPI number?
The NPI number for Christine Fitzgibbons is 1194771220. It was assigned to this individual provider in the NPPES registry on May 26, 2006. The provider is also known as Christine M. O'brien M.D..
Where is Christine Fitzgibbons located?
Christine Fitzgibbons practices at 154 E Main St, Westborough, MA 01581. The listed phone number is (508) 366-1120.
What is Christine Fitzgibbons's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.
Is Christine Fitzgibbons enrolled in Medicare?
Yes. Christine Fitzgibbons 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 organization bills Medicare for Christine Fitzgibbons's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christine Fitzgibbons reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, 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 Christine Fitzgibbons's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christine Fitzgibbons accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Christine Fitzgibbons 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 Christine Fitzgibbons was last updated on August 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Christine M. Fitzgibbons, M.D. · NPI 1194771220
Sleep Medicine physician in Westborough, Massachusetts. Individual provider, active in the CMS NPPES registry since May 26, 2006.
## Identity
- **NPI:** 1194771220 (Entity type: Individual)
- **Enumerated:** May 26, 2006
- **Primary specialty:** Internal Medicine - Sleep Medicine · taxonomy 207RS0012X
- **State license:** 224279 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 154 E MAIN ST, Westborough, MA 01581-1768
- **Phone:** (508) 366-1120
## 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:** Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** August 13, 2025
- **Other identifiers:** Medicaid 110040892A (MA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1194771220) · Data from the CMS NPPES public registry.