DR. EMILY SWANSON GUIMARAES MD
NPI 1023008323
Anesthesiology in Boston, MA
About Dr. Emily Swanson Guimaraes Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EMILY SWANSON GUIMARAES MD (NPI 1023008323) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (218035) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and is a graduate of Harvard Medical School (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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. Emily Swanson Guimaraes 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 Reassignment
Medicare enrollment records show Emily Guimaraes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 279 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ohsu Hospital And Clinics
Acute Care Hospitals · Portland, ORMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 02135
BRIGHTON, MA 02135
BOSTON, MA 02135
BRIGHTON, MA 02135
BRIGHTON, MA 02135
BOSTON, MA 02135
BRIGHTON, MA 02135
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 Guimaraes's NPI number?
The NPI number for Emily Guimaraes is 1023008323. It was assigned to this individual provider in the NPPES registry on October 27, 2005.
Where is Emily Guimaraes located?
Emily Guimaraes practices at 736 Cambridge St, Boston, MA 02135. The listed phone number is (617) 789-2782.
What is Emily Guimaraes's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Emily Guimaraes enrolled in Medicare?
Yes. Emily Guimaraes 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 Emily Guimaraes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily Guimaraes reassigns Medicare benefits to University Anesthesiology Associates, LLC (Portland, OR). 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 Emily Guimaraes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Emily Guimaraes affiliated with any hospitals?
According to CMS data, Emily Guimaraes is affiliated with Ohsu Hospital And Clinics.
When was this NPI record last updated?
The NPPES record for Emily Guimaraes was last updated on August 20, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Emily Swanson Guimaraes, MD · NPI 1023008323
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 27, 2005.
## Identity
- **NPI:** 1023008323 (Entity type: Individual)
- **Enumerated:** October 27, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 218035 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 736 CAMBRIDGE ST, Boston, MA 02135-2907
- **Phone:** (617) 789-2782 · **Fax:** (781) 407-0998
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for durable medical equipment, power mobility devices
- **Bills Medicare through:** University Anesthesiology Associates, LLC (NPI 1841217817, Portland, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1998
## Record status
- **NPPES last updated:** August 20, 2013
- **Other identifiers:** Other 468508 (MA); Medicare UPIN H92144; Other J26585 (MA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1023008323) · Data from the CMS NPPES public registry.