STEPHEN WOLOSZYNEK MD, PHD
NPI 1508494923
Anesthesiology in Boston, MA
About Stephen Woloszynek Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN WOLOSZYNEK MD, PHD (NPI 1508494923) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1022170) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Drexel University College Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Stephen Woloszynek Md, Phd 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 Stephen Woloszynek reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1093756629 (Massachusetts)
- 2,579 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.
Beth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
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 Stephen Woloszynek's NPI number?
The NPI number for Stephen Woloszynek is 1508494923. It was assigned to this individual provider in the NPPES registry on March 31, 2020.
Where is Stephen Woloszynek located?
Stephen Woloszynek practices at 330 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 667-7000.
What is Stephen Woloszynek's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Stephen Woloszynek enrolled in Medicare?
Yes. Stephen Woloszynek 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 Stephen Woloszynek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Woloszynek reassigns Medicare benefits to 2 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). 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 Stephen Woloszynek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Woloszynek accept?
Health plans from Taro Health list Stephen Woloszynek as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Stephen Woloszynek affiliated with any hospitals?
According to CMS data, Stephen Woloszynek is affiliated with Beth Israel Deaconess Medical Center.
When was this NPI record last updated?
The NPPES record for Stephen Woloszynek was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Stephen Woloszynek, MD, PHD · NPI 1508494923
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 31, 2020.
## Identity
- **NPI:** 1508494923 (Entity type: Individual)
- **Enumerated:** March 31, 2020
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 1022170 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 330 BROOKLINE AVE, Boston, MA 02215-5491
- **Phone:** (617) 667-7000
## 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): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2020
## Record status
- **NPPES last updated:** September 4, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1508494923) · Data from the CMS NPPES public registry.