MARGARET TERESA OCONNELL MD
NPI 1912237355
Obstetrics & Gynecology in Slingerlands, NY
About Margaret Teresa Oconnell Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET TERESA OCONNELL MD (NPI 1912237355) is an individual obstetrics & gynecology provider in Slingerlands, New York, licensed in New York (258065) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS, is affiliated with St Peter's Hospital, and maintains a secondary practice location in Rensselaer.
NPPES Registry Identity
Specialties & Licenses 2
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
Margaret Teresa Oconnell 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
3Medicare enrollment records show Margaret Oconnell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Slingerlands, NY 12159
- Reassigned Medicare billing, New York enrollment
- 742 clinicians in this Medicare group
Slingerlands, NY 12159
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: St Peters Hospital Of The City Of Albany
- 623 clinicians in this Medicare group
Troy, NY 12180
- Reassigned Medicare billing, New York enrollment
- 725 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.
St Peter's Hospital
Acute Care Hospitals · Albany, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 12159 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.
Reported Quality Measures
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SLINGERLANDS, NY 12159
SLINGERLANDS, NY 12159
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 Margaret Oconnell's NPI number?
The NPI number for Margaret Oconnell is 1912237355. It was assigned to this individual provider in the NPPES registry on January 7, 2010.
Where is Margaret Oconnell located?
Margaret Oconnell practices at 1240 New Scotland Rd Ste 100, Slingerlands, NY 12159. The listed phone number is (518) 475-7130.
What is Margaret Oconnell's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Margaret Oconnell enrolled in Medicare?
Yes. Margaret Oconnell 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 Margaret Oconnell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Oconnell reassigns Medicare benefits to 3 organizations: St. Peter's Health Partners Medical Associates, P.C. (Slingerlands, NY), St. Peter's Hospital Of The City Of Albany (Slingerlands, NY) and Samaritan Hospital Of Troy, New York (Troy, 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 Margaret Oconnell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Margaret Oconnell affiliated with any hospitals?
According to CMS data, Margaret Oconnell is affiliated with St Peter's Hospital.
When was this NPI record last updated?
The NPPES record for Margaret Oconnell was last updated on October 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Margaret Teresa Oconnell, MD · NPI 1912237355
Obstetrics & Gynecology physician in Slingerlands, New York. Individual provider, active in the CMS NPPES registry since January 7, 2010.
## Identity
- **NPI:** 1912237355 (Entity type: Individual)
- **Enumerated:** January 7, 2010
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 258065 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1240 NEW SCOTLAND RD STE 100, Slingerlands, NY 12159-9222
- **Phone:** (518) 475-7130
## 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): St. Peter's Health Partners Medical Associates, P.C. (NPI 1568707222, Slingerlands, NY); St. Peter's Hospital Of The City Of Albany (NPI 1073686069, Slingerlands, NY); Samaritan Hospital Of Troy, New York (NPI 1043267727, Troy, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** October 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1912237355) · Data from the CMS NPPES public registry.