DR. MEGHAN OSWALD D.M.D, M.D
NPI 1740544931
Psychiatry & Neurology - Psychiatry in Port Jefferson, NY
About Dr. Meghan Oswald D.m.d, M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MEGHAN OSWALD D.M.D, M.D (NPI 1740544931) is an individual psychiatry provider in Port Jefferson, New York, licensed in New York (331310) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and is a graduate of Oregon Health Sciences University School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses 2
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. Meghan Oswald D.m.d, 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
3Medicare enrollment records show Meghan Oswald reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Port Jefferson, NY 11777
- Reassigned Medicare billing, New York enrollment
- 255 clinicians in this Medicare group
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 133 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ns/Lij Hs Southside Hospital
Acute Care Hospitals · Bay Shore, NYSuny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11777 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
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 Meghan Oswald's NPI number?
The NPI number for Meghan Oswald is 1740544931. It was assigned to this individual provider in the NPPES registry on July 2, 2012.
Where is Meghan Oswald located?
Meghan Oswald practices at 75 N Country Rd, Port Jefferson, NY 11777. The listed phone number is (631) 473-1320.
What is Meghan Oswald's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Meghan Oswald enrolled in Medicare?
Yes. Meghan Oswald 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 Meghan Oswald's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Meghan Oswald reassigns Medicare benefits to 3 organizations: John T. Mather Memorial Hospital (Port Jefferson, NY), Stony Brook Psychiatric Associates, University Faculty Practice Corpor (Stony Brook, NY) and North Shore-Lij Medical PC (Great Neck, 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 Meghan Oswald's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Meghan Oswald affiliated with any hospitals?
According to CMS data, Meghan Oswald is affiliated with Ns/Lij Hs Southside Hospital and Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Meghan Oswald was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Meghan Oswald, D.M.D, M.D · NPI 1740544931
Psychiatry physician in Port Jefferson, New York. Individual provider, active in the CMS NPPES registry since July 2, 2012.
## Identity
- **NPI:** 1740544931 (Entity type: Individual)
- **Enumerated:** July 2, 2012
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 331310 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 75 N COUNTRY RD, Port Jefferson, NY 11777-2119
- **Phone:** (631) 473-1320
## 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): John T. Mather Memorial Hospital (NPI 1467249334, Port Jefferson, NY); Stony Brook Psychiatric Associates, University Faculty Practice Corpor (NPI 1437105905, Stony Brook, NY); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oregon Health Sciences University School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** March 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1740544931) · Data from the CMS NPPES public registry.