RACHELLE M ST.ONGE M.D., M.P.H.
NPI 1154709046
Obstetrics & Gynecology in Buffalo, NY
About Rachelle M St.onge M.d., M.p.h. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RACHELLE M ST.ONGE M.D., M.P.H. (NPI 1154709046) is an individual obstetrics & gynecology provider in Buffalo, New York, licensed in New York (297060) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and maintains a secondary practice location in Buffalo.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Rachelle M St.onge M.d., M.p.h. 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
3Medicare enrollment records show Rachelle St.onge reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Buffalo, NY 14203
- Reassigned Medicare billing, New York enrollment
- 30 clinicians in this Medicare group
Buffalo, NY 14203
- Reassigned Medicare billing, New York enrollment
- 676 clinicians in this Medicare group
Rochester, NY 14605
- Reassigned Medicare billing, New York enrollment
- 35 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.
Kaleida Health
Acute Care Hospitals · Buffalo, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14203 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 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BUFFALO, NY 14203
BUFFALO, NY 14203
BUFFALO, NY 14203
BUFFALO, NY 14203
BUFFALO, NY 14203
BUFFALO, NY 14203
BUFFALO, NY 14203
BUFFALO, NY 14203
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 Rachelle St.onge's NPI number?
The NPI number for Rachelle St.onge is 1154709046. It was assigned to this individual provider in the NPPES registry on May 11, 2015.
Where is Rachelle St.onge located?
Rachelle St.onge practices at 1001 Main Street 4th Floor, Buffalo, NY 14203. The listed phone number is (716) 636-8284.
What is Rachelle St.onge's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Rachelle St.onge enrolled in Medicare?
Yes. Rachelle St.onge 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 Rachelle St.onge's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rachelle St.onge reassigns Medicare benefits to 3 organizations: University Gynecologists & Obstetricians,inc. (Buffalo, NY), Kaleida Health (Buffalo, NY) and Planned Parenthood Of Central And Western New York, Inc (Rochester, NY). 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 Rachelle St.onge's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Rachelle St.onge affiliated with any hospitals?
According to CMS data, Rachelle St.onge is affiliated with Kaleida Health.
When was this NPI record last updated?
The NPPES record for Rachelle St.onge was last updated on June 17, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Rachelle M St.onge, M.D., M.P.H. · NPI 1154709046
Obstetrics & Gynecology physician in Buffalo, New York. Individual provider, active in the CMS NPPES registry since May 11, 2015.
## Identity
- **NPI:** 1154709046 (Entity type: Individual)
- **Enumerated:** May 11, 2015
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 297060 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 MAIN STREET, 4TH FLOOR, Buffalo, NY 14203
- **Phone:** (716) 636-8284
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): University Gynecologists & Obstetricians,inc. (NPI 1154354140, Buffalo, NY); Kaleida Health (NPI 1245365196, Buffalo, NY); Planned Parenthood Of Central And Western New York, Inc (NPI 1306909957, Rochester, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** June 17, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1154709046) · Data from the CMS NPPES public registry.