DR. TAMARA J LEAF PSYD
NPI 1194707539
Psychologist in Chelsea, MA
About Dr. Tamara J Leaf Psyd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TAMARA J LEAF PSYD (NPI 1194707539) is an individual psychologist in Chelsea, Massachusetts, licensed in Massachusetts (4535) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Other (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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. Tamara J Leaf Psyd 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
2Medicare enrollment records show Tamara Leaf reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAFrequently 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 Tamara Leaf's NPI number?
The NPI number for Tamara Leaf is 1194707539. It was assigned to this individual provider in the NPPES registry on November 18, 2005.
Where is Tamara Leaf located?
Tamara Leaf practices at 151 Everett Avenue Chc Chelsea Healthcare Center, Chelsea, MA 02150. The listed phone number is (617) 889-8515.
What is Tamara Leaf's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Tamara Leaf enrolled in Medicare?
Yes. Tamara Leaf 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 Tamara Leaf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tamara Leaf reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (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 Tamara Leaf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tamara Leaf accept?
Health plans from Harvard Pilgrim Health Care and WellSense Health Plan list Tamara Leaf 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 Tamara Leaf affiliated with any hospitals?
According to CMS data, Tamara Leaf is affiliated with Massachusetts General Hospital.
When was this NPI record last updated?
The NPPES record for Tamara Leaf was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.