MALWINA WLOCH M.D.
NPI 1023376068
Anesthesiology in Stony Brook, NY
About Malwina Wloch M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MALWINA WLOCH M.D. (NPI 1023376068) is an individual anesthesiology provider in Stony Brook, New York, licensed in New York (283293-1) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and is a graduate of State University Of New York Downstate Medical Center (2012).
NPPES Registry Identity
Specialties & Licenses
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
Malwina Wloch 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 Malwina Wloch reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Uniondale, NY 11553
- Reassigned Medicare billing, New York enrollment
- 28 clinicians in this Medicare group
Chappaqua, NY 10514
- Reassigned Medicare billing, New York enrollment
- 1,406 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 4
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.
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.
STONY BROOK, NY 11794
STONY BROOK, NY 11794
STONY BROOK, NY 11794
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 Malwina Wloch's NPI number?
The NPI number for Malwina Wloch is 1023376068. It was assigned to this individual provider in the NPPES registry on April 27, 2012.
Where is Malwina Wloch located?
Malwina Wloch practices at 100 Nicolls Rd Suny At Stony Brook - Department Of Anesthesiology, Stony Brook, NY 11794. The listed phone number is (631) 444-2968.
What is Malwina Wloch's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Malwina Wloch enrolled in Medicare?
Yes. Malwina Wloch 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 Malwina Wloch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Malwina Wloch reassigns Medicare benefits to 2 organizations: Long Island Center For Digestive Health LLC (Uniondale, NY) and North Shore - Lij Anesthesiology, PC (Chappaqua, 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 Malwina Wloch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Malwina Wloch was last updated on April 12, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.