DR. SARA HAMILTON SULLIVAN M.D.
NPI 1295922011
Psychiatry & Neurology - Psychiatry in Boston, MA
About Dr. Sara Hamilton Sullivan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SARA HAMILTON SULLIVAN M.D. (NPI 1295922011) is an individual psychiatry provider in Boston, Massachusetts, licensed in Massachusetts (228574) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and is a graduate of Boston University School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Sara Hamilton Sullivan 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 Reassignments
3Medicare enrollment records show Sara Sullivan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1194765438 (Massachusetts)
- 118 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 40 clinicians in this Medicare group
Cambridge, MA 02138
- Reassigned Medicare billing, Massachusetts enrollment
- 44 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02215 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 02215
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
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 Sara Sullivan's NPI number?
The NPI number for Sara Sullivan is 1295922011. It was assigned to this individual provider in the NPPES registry on September 25, 2007.
Where is Sara Sullivan located?
Sara Sullivan practices at 330 Brookline Ave Department Of Psychiatry, Rabb 2, Boston, MA 02215. The listed phone number is (617) 667-2300.
What is Sara Sullivan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Sara Sullivan enrolled in Medicare?
Yes. Sara Sullivan 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 Sara Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sara Sullivan reassigns Medicare benefits to 3 organizations: Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), The Commonwealth Of Massachusetts (Boston, MA) and Mount Auburn Hospital (Cambridge, MA). 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 Sara Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sara Sullivan accept?
Health plans from Harvard Pilgrim Health Care list Sara Sullivan 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 Sara Sullivan affiliated with any hospitals?
According to CMS data, Sara Sullivan is affiliated with Mount Auburn Hospital.
When was this NPI record last updated?
The NPPES record for Sara Sullivan was last updated on September 25, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.