GINA T SULLIVAN MD
NPI 1265750228
Obstetrics & Gynecology in Worcester, MA
About Gina T Sullivan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GINA T SULLIVAN MD (NPI 1265750228) is an individual obstetrics & gynecology provider in Worcester, Massachusetts, licensed in Massachusetts (258579) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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
Gina T Sullivan 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 Gina Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 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.
Umass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01605 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
WORCESTER, MA 01605
WORCESTER, MA 01605
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 Gina Sullivan's NPI number?
The NPI number for Gina Sullivan is 1265750228. It was assigned to this individual provider in the NPPES registry on May 13, 2010. The provider is also known as Gina Marie Tassone MD.
Where is Gina Sullivan located?
Gina Sullivan practices at 33 Kendall St, Worcester, MA 01605. The listed phone number is (508) 334-6255.
What is Gina Sullivan's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Gina Sullivan enrolled in Medicare?
Yes. Gina 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 organization bills Medicare for Gina Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gina Sullivan reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, MA). 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 Gina Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gina Sullivan accept?
Health plans from Taro Health list Gina 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.
Is Gina Sullivan affiliated with any hospitals?
According to CMS data, Gina Sullivan is affiliated with Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Gina Sullivan was last updated on November 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Gina T Sullivan, MD · NPI 1265750228
Obstetrics & Gynecology physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since May 13, 2010.
## Identity
- **NPI:** 1265750228 (Entity type: Individual)
- **Enumerated:** May 13, 2010
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 258579 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 33 KENDALL ST, Worcester, MA 01605-2726
- **Phone:** (508) 334-6255 · **Fax:** (508) 334-6063
## 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:** Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** November 10, 2020
- **Other identifiers:** Medicaid 110104869A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1265750228) · Data from the CMS NPPES public registry.