DR. CAITLIN O'NEILL SAINT-AUBIN M.D.
NPI 1285834119
Obstetrics & Gynecology in Providence, RI
About Dr. Caitlin O'neill Saint-aubin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CAITLIN O'NEILL SAINT-AUBIN M.D. (NPI 1285834119) is an individual obstetrics & gynecology provider in Providence, Rhode Island, licensed in Rhode Island (MD13273) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS, is affiliated with Women & Infants Hospital Of Rhode Island, and is a graduate of University Of Massachusetts Medical School (2006).
NPPES Registry Identity
Specialties & Licenses
Group Practice 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
Dr. Caitlin O'neill Saint-aubin M.d. 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 Caitlin Saint-aubin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Providence, RI 02905
- Reassigned Medicare billing, Rhode Island enrollment
- 984 clinicians in this Medicare group
Pawtucket, RI 02860
- Reassigned Medicare billing, Rhode Island enrollment
- 40 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
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.
Women & Infants Hospital Of Rhode Island
Acute Care Hospitals · Providence, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02908 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PROVIDENCE, RI 02908
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 Caitlin Saint-aubin's NPI number?
The NPI number for Caitlin Saint-aubin is 1285834119. It was assigned to this individual provider in the NPPES registry on July 19, 2007.
Where is Caitlin Saint-aubin located?
Caitlin Saint-aubin practices at 297 Promenade St Center For Obstetrics And Gynecology, Providence, RI 02908. The listed phone number is (401) 490-6464.
What is Caitlin Saint-aubin's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Caitlin Saint-aubin enrolled in Medicare?
Yes. Caitlin Saint-aubin 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 Caitlin Saint-aubin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caitlin Saint-aubin reassigns Medicare benefits to 2 organizations: Affinity Physicians LLC (Providence, RI) and Southern New England Healthcare For Women, LLC (Pawtucket, RI). 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 Caitlin Saint-aubin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Caitlin Saint-aubin affiliated with any hospitals?
According to CMS data, Caitlin Saint-aubin is affiliated with Women & Infants Hospital Of Rhode Island.
When was this NPI record last updated?
The NPPES record for Caitlin Saint-aubin was last updated on March 31, 2021. 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.
# Dr. Caitlin O'neill Saint-Aubin, M.D. · NPI 1285834119
Obstetrics & Gynecology physician in Providence, Rhode Island. Individual provider, active in the CMS NPPES registry since July 19, 2007.
## Identity
- **NPI:** 1285834119 (Entity type: Individual)
- **Enumerated:** July 19, 2007
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD13273 (Rhode Island)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 297 PROMENADE ST, CENTER FOR OBSTETRICS AND GYNECOLOGY, Providence, RI 02908-5720
- **Phone:** (401) 490-6464
## 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): Affinity Physicians LLC (NPI 1053038471, Providence, RI); Southern New England Healthcare For Women, LLC (NPI 1699058826, Pawtucket, RI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2006
## Record status
- **NPPES last updated:** March 31, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1285834119) · Data from the CMS NPPES public registry.