DR. STEVEN E ZGLESZEWSKI MD
NPI 1013978295
Anesthesiology in Boston, MA
About Dr. Steven E Zgleszewski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN E ZGLESZEWSKI MD (NPI 1013978295) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (213529) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Boston Children's Hospital, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Dr. Steven E Zgleszewski 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 Reassignment
Medicare enrollment records show Steven Zgleszewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 256 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.
Boston Children's Hospital
Childrens · 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 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Steven Zgleszewski's NPI number?
The NPI number for Steven Zgleszewski is 1013978295. It was assigned to this individual provider in the NPPES registry on March 29, 2006.
Where is Steven Zgleszewski located?
Steven Zgleszewski practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-7759.
What is Steven Zgleszewski's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Steven Zgleszewski enrolled in Medicare?
Yes. Steven Zgleszewski 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 organization bills Medicare for Steven Zgleszewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Zgleszewski reassigns Medicare benefits to Chmc Anesthesia Foundation Inc (Boston, MA). The 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 Steven Zgleszewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steven Zgleszewski accept?
Health plans from Taro Health list Steven Zgleszewski 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 Steven Zgleszewski affiliated with any hospitals?
According to CMS data, Steven Zgleszewski is affiliated with Boston Children's Hospital.
When was this NPI record last updated?
The NPPES record for Steven Zgleszewski was last updated on August 20, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Steven E Zgleszewski, MD · NPI 1013978295
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 29, 2006.
## Identity
- **NPI:** 1013978295 (Entity type: Individual)
- **Enumerated:** March 29, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 213529 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-7759
## 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:** Chmc Anesthesia Foundation Inc (NPI 1831268754, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1993
## Record status
- **NPPES last updated:** August 20, 2007
- **Other identifiers:** Medicare UPIN H54809
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Source: [NPI Profile](https://npiprofile.com/npi/1013978295) · Data from the CMS NPPES public registry.