CHRISTOPHER J GILLIGAN MD
NPI 1871798397
Anesthesiology - Pain Medicine in Boston, MA
About Christopher J Gilligan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER J GILLIGAN MD (NPI 1871798397) is an individual pain medicine provider in Boston, Massachusetts, licensed in New Jersey (25MA12374500) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital, and is a graduate of Yale University School Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses 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 and accepts Medicare assignment
Christopher J Gilligan Md 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 Reassignments
2Medicare enrollment records show Christopher Gilligan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Piscataway, NJ 08854
- Reassigned Medicare billing, New Jersey enrollment
- 641 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Robert Wood Johnson University Hospital
Acute Care Hospitals · New Brunswick, NJReferred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Christopher Gilligan's NPI number?
The NPI number for Christopher Gilligan is 1871798397. It was assigned to this individual provider in the NPPES registry on June 15, 2007.
Where is Christopher Gilligan located?
Christopher Gilligan practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.
What is Christopher Gilligan's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.
Is Christopher Gilligan enrolled in Medicare?
Yes. Christopher Gilligan 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 organizations bill Medicare for Christopher Gilligan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Gilligan reassigns Medicare benefits to 2 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA) and Rutgers Health-Rwj Scleroderma Program (Piscataway, NJ). Each 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 Christopher Gilligan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christopher Gilligan accept?
Health plans from Oscar Health and Taro Health list Christopher Gilligan 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 Christopher Gilligan affiliated with any hospitals?
According to CMS data, Christopher Gilligan is affiliated with Robert Wood Johnson University Hospital.
When was this NPI record last updated?
The NPPES record for Christopher Gilligan was last updated on January 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Christopher J Gilligan, MD · NPI 1871798397
Pain Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 15, 2007.
## Identity
- **NPI:** 1871798397 (Entity type: Individual)
- **Enumerated:** June 15, 2007
- **Primary specialty:** Anesthesiology - Pain Medicine · taxonomy 207LP2900X
- **State license:** 25MA12374500 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6110
- **Phone:** (617) 732-5500
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Rutgers Health-Rwj Scleroderma Program (NPI 1316222664, Piscataway, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Yale University School Of Medicine, class of 1996
## Record status
- **NPPES last updated:** January 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871798397) · Data from the CMS NPPES public registry.