EMILY MAE SULLIVAN D.O.
NPI 1427311349
Psychiatry & Neurology - Psychiatry in Boston, MA
About Emily Mae Sullivan D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMILY MAE SULLIVAN D.O. (NPI 1427311349) is an individual psychiatry provider in Boston, Massachusetts, licensed in Massachusetts (261129) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS and is a graduate of University Of New England, College Of Osteo Medicine (2012).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 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
Emily Mae Sullivan D.o. 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
8Medicare enrollment records show Emily Sullivan reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 90 clinicians in this Medicare group
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 9 clinicians in this Medicare group
Boston, MA 02109
- Reassigned Medicare billing, Massachusetts enrollment
- 350 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 34 clinicians in this Medicare group
Brookline, MA 02467
- Reassigned Medicare billing, Massachusetts enrollment
- 34 clinicians in this Medicare group
Medford, MA 02155
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Melrosewakefield Healthcare, Inc
- 140 clinicians in this Medicare group
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 477 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 2
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 02111 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 02111
BOSTON, MA 02111
BOSTON, MA 02111
BOSTON, MA 02111
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 Emily Sullivan's NPI number?
The NPI number for Emily Sullivan is 1427311349. It was assigned to this individual provider in the NPPES registry on June 18, 2012. The provider is also known as Emily Mae Willmer.
Where is Emily Sullivan located?
Emily Sullivan practices at 800 Washington St, Boston, MA 02111. The listed phone number is (617) 636-7802.
What is Emily Sullivan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Emily Sullivan enrolled in Medicare?
Yes. Emily 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 Emily Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily Sullivan reassigns Medicare benefits to 8 organizations: Pratt Psychiatric Associates, Inc (Boston, MA), Pratt Rehabilitation Medicine Associates, Inc (Boston, MA), Mass General Brigham Community Physicians Inc. (Boston, MA), The Commonwealth Of Massachusetts (Boston, MA), First Psychiatric Planners, Inc (Brookline, MA) and 3 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 Emily Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Emily Sullivan accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Emily 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.
When was this NPI record last updated?
The NPPES record for Emily Sullivan was last updated on February 1, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Emily Mae Sullivan, D.O. · NPI 1427311349
Psychiatry physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 18, 2012.
## Identity
- **NPI:** 1427311349 (Entity type: Individual)
- **Enumerated:** June 18, 2012
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 261129 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 WASHINGTON ST, Boston, MA 02111-1552
- **Phone:** (617) 636-7802 · **Fax:** (617) 636-4852
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Pratt Psychiatric Associates, Inc (NPI 1245270875, Boston, MA); Pratt Rehabilitation Medicine Associates, Inc (NPI 1316981012, Boston, MA); Mass General Brigham Community Physicians Inc. (NPI 1265094122, Boston, MA); The Commonwealth Of Massachusetts (NPI 1285759464, Boston, MA); First Psychiatric Planners, Inc (NPI 1093714412, Brookline, MA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2012
## Record status
- **NPPES last updated:** February 1, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1427311349) · Data from the CMS NPPES public registry.