JOHN GUY SANTILLI MD
NPI 1063567899
Radiology - Vascular & Interventional Radiology in Boston, MA
About John Guy Santilli Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN GUY SANTILLI MD (NPI 1063567899) is an individual vascular & interventional radiology provider in Boston, Massachusetts, licensed in Massachusetts (BS7279537) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Wayne State University School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses 6
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 and accepts Medicare assignment
John Guy Santilli 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
7Medicare enrollment records show John Santilli reassigns Medicare billing to 7 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
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
- 146 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- 556 clinicians in this Medicare group
South Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 419 clinicians in this Medicare group
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 678 clinicians in this Medicare group
Middletown, CT 06457
- Reassigned Medicare billing, Connecticut and Massachusetts enrollments
- 21 clinicians in this Medicare group
Guilford, CT 06437
- Reassigned Medicare billing, Connecticut enrollment
- 22 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.
Areas of Expertise CMS Part B claims 9
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 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.
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 John Santilli's NPI number?
The NPI number for John Santilli is 1063567899. It was assigned to this individual provider in the NPPES registry on January 24, 2007.
Where is John Santilli located?
John Santilli practices at 300 Longwood Ave Department Of Radiology, Boston, MA 02115. The listed phone number is (617) 355-6936.
What is John Santilli's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is John Santilli enrolled in Medicare?
Yes. John Santilli 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 John Santilli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Santilli reassigns Medicare benefits to 7 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), Harvard Medical Faculty Physicians At Beth Israel Deaconess Medical Ce (Boston, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Milton, MA), Harbor Medical Associates, Inc. (South Weymouth, MA), Physicians Of Cape Cod Hospital (Hyannis, MA) and 2 more organizations, listed in the Medicare section above. 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 John Santilli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Santilli accept?
Health plans from Taro Health list John Santilli 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 John Santilli was last updated on November 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# John Guy Santilli, MD · NPI 1063567899
Vascular & Interventional Radiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since January 24, 2007.
## Identity
- **NPI:** 1063567899 (Entity type: Individual)
- **Enumerated:** January 24, 2007
- **Primary specialty:** Radiology - Vascular & Interventional Radiology · taxonomy 2085R0204X
- **State license:** BS7279537 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 300 LONGWOOD AVE, DEPARTMENT OF RADIOLOGY, Boston, MA 02115-5724
- **Phone:** (617) 355-6936 · **Fax:** (617) 730-0541
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Harvard Medical Faculty Physicians At Beth Israel Deaconess Medical Ce (NPI 1275574899, Boston, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1245773308, Milton, MA); Harbor Medical Associates, Inc. (NPI 1124079561, South Weymouth, MA); Physicians Of Cape Cod Hospital (NPI 1679832364, Hyannis, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** November 5, 2013
- **Other identifiers:** Medicare ID-Type Unspecified A30804 (MA); Medicare UPIN G89385 (MA); Medicaid 3207951 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1063567899) · Data from the CMS NPPES public registry.