DR. EMILY STAMELL RUIZ MD
NPI 1053638197
Dermatology in Boston, MA
About Dr. Emily Stamell Ruiz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EMILY STAMELL RUIZ MD (NPI 1053638197) is an individual dermatology provider in Boston, Massachusetts, licensed in Massachusetts (258552) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 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
Dr. Emily Stamell Ruiz 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
4Medicare enrollment records show Emily Ruiz reassigns Medicare billing to 4 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 1346433257 (Massachusetts)
- 1,026 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 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 19
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, 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
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 Ruiz's NPI number?
The NPI number for Emily Ruiz is 1053638197. It was assigned to this individual provider in the NPPES registry on April 29, 2010. The provider is also known as Emily Frank Stamell MD.
Where is Emily Ruiz located?
Emily Ruiz practices at 450 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 732-5500.
What is Emily Ruiz's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Emily Ruiz enrolled in Medicare?
Yes. Emily Ruiz 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 Ruiz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily Ruiz reassigns Medicare benefits to 4 organizations: Dana-Farber Cancer Institute, Inc. (Boston, MA), Brigham & Womens Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, 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 Emily Ruiz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Emily Ruiz accept?
Health plans from Anthem Blue Cross and Blue Shield list Emily Ruiz 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 Emily Ruiz affiliated with any hospitals?
According to CMS data, Emily Ruiz is affiliated with Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Emily Ruiz was last updated on March 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.