JOSSIE ANTOINETTE CARRERAS TARTAK MD
NPI 1619436540
Emergency Medicine in Boston, MA
About Jossie Antoinette Carreras Tartak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSSIE ANTOINETTE CARRERAS TARTAK MD (NPI 1619436540) is an individual emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (295600) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
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
Jossie Antoinette Carreras Tartak 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
6Medicare enrollment records show Jossie Carreras Tartak reassigns Medicare billing to 6 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 1952358533 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1316987993 (Massachusetts)
- 2,579 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- 177 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 305 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 258 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 9
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MALawrence General Hospital
Acute Care Hospitals · Lawrence, MAMassachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MABeth Israel Deaconess Hospital - Milton
Acute Care Hospitals · Milton, 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 Jossie Carreras Tartak's NPI number?
The NPI number for Jossie Carreras Tartak is 1619436540. It was assigned to this individual provider in the NPPES registry on March 19, 2019. The provider is also known as Jossie Antoinette Carreras MD.
Where is Jossie Carreras Tartak located?
Jossie Carreras Tartak practices at 1 Deaconess Rd, Boston, MA 02215. The listed phone number is (617) 754-2400.
What is Jossie Carreras Tartak's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jossie Carreras Tartak enrolled in Medicare?
Yes. Jossie Carreras Tartak 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 Jossie Carreras Tartak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jossie Carreras Tartak reassigns Medicare benefits to 6 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Bid-Milton Physician Associates Inc (Milton, MA), Community Medical Associates, Inc. (Lawrence, MA) and 1 more organization, 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 Jossie Carreras Tartak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jossie Carreras Tartak accept?
Health plans from Taro Health list Jossie Carreras Tartak 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 Jossie Carreras Tartak affiliated with any hospitals?
According to CMS data, Jossie Carreras Tartak is affiliated with Mount Auburn Hospital, Lawrence General Hospital, Massachusetts Eye And Ear Infirmary -, Beth Israel Deaconess Medical Center and Beth Israel Deaconess Hospital - Milton.
When was this NPI record last updated?
The NPPES record for Jossie Carreras Tartak was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Jossie Antoinette Carreras Tartak, MD · NPI 1619436540
Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 19, 2019.
## Identity
- **NPI:** 1619436540 (Entity type: Individual)
- **Enumerated:** March 19, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 295600 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 DEACONESS RD, Boston, MA 02215-5321
- **Phone:** (617) 754-2400
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Bid-Milton Physician Associates Inc (NPI 1184312738, Milton, MA); Community Medical Associates, Inc. (NPI 1144544040, Lawrence, MA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** September 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1619436540) · Data from the CMS NPPES public registry.