STEPHANIE G. TATOIAN NP
NPI 1063656205
Nurse Practitioner - Obstetrics & Gynecology in Watertown, MA
About Stephanie G. Tatoian Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHANIE G. TATOIAN NP (NPI 1063656205) is an individual obstetrics & gynecology provider in Watertown, Massachusetts, licensed in Massachusetts (273596) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
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
Stephanie G. Tatoian Np 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 Stephanie Tatoian reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Beverly, MA 01915
- Reassigned Medicare billing, Massachusetts enrollment
- 10 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.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02472 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.
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 Stephanie Tatoian's NPI number?
The NPI number for Stephanie Tatoian is 1063656205. It was assigned to this individual provider in the NPPES registry on April 30, 2009. The provider is also known as Stephanie G. Williams.
Where is Stephanie Tatoian located?
Stephanie Tatoian practices at 27 French St, Watertown, MA 02472. The listed phone number is (857) 919-7251.
What is Stephanie Tatoian's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Obstetrics & Gynecology, with taxonomy code 363LX0001X.
Is Stephanie Tatoian enrolled in Medicare?
Yes. Stephanie Tatoian 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 Stephanie Tatoian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Tatoian reassigns Medicare benefits to 2 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA) and Healthquarters, Inc (Beverly, 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 Stephanie Tatoian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Stephanie Tatoian affiliated with any hospitals?
According to CMS data, Stephanie Tatoian is affiliated with Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Stephanie Tatoian was last updated on November 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Stephanie G. Tatoian, NP · NPI 1063656205
Obstetrics & Gynecology physician in Watertown, Massachusetts. Individual provider, active in the CMS NPPES registry since April 30, 2009.
## Identity
- **NPI:** 1063656205 (Entity type: Individual)
- **Enumerated:** April 30, 2009
- **Primary specialty:** Nurse Practitioner - Obstetrics & Gynecology · taxonomy 363LX0001X
- **State license:** 273596 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 27 FRENCH ST, Watertown, MA 02472-2346
- **Phone:** (857) 919-7251
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Healthquarters, Inc (NPI 1154459618, Beverly, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** November 8, 2024
- **Other identifiers:** Medicaid 110177174A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1063656205) · Data from the CMS NPPES public registry.