GREGORY S SAWICKI M.D.
NPI 1295773588
Pediatrics - Pediatric Pulmonology in Boston, MA
About Gregory S Sawicki M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY S SAWICKI M.D. (NPI 1295773588) is an individual pediatric pulmonology provider in Boston, Massachusetts, licensed in Massachusetts (226814) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (2001).
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
Gregory S Sawicki 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 Reassignment
Medicare enrollment records show Gregory Sawicki 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
- 1,358 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.
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.
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 Gregory Sawicki's NPI number?
The NPI number for Gregory Sawicki is 1295773588. It was assigned to this individual provider in the NPPES registry on June 2, 2006.
Where is Gregory Sawicki located?
Gregory Sawicki practices at 300 Longwood Avenue Childrens Hospital, Boston, MA 02115. The listed phone number is (617) 355-6105.
What is Gregory Sawicki's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.
Is Gregory Sawicki enrolled in Medicare?
Yes. Gregory Sawicki 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 Gregory Sawicki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Sawicki reassigns Medicare benefits to Children's Hospital Pediatric Associates, 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 Gregory Sawicki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Sawicki accept?
Health plans from Taro Health list Gregory Sawicki 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.
When was this NPI record last updated?
The NPPES record for Gregory Sawicki was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Gregory S Sawicki, M.D. · NPI 1295773588
Pediatric Pulmonology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 2, 2006.
## Identity
- **NPI:** 1295773588 (Entity type: Individual)
- **Enumerated:** June 2, 2006
- **Primary specialty:** Pediatrics - Pediatric Pulmonology · taxonomy 2080P0214X
- **State license:** 226814 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVENUE, CHILDRENS HOSPITAL, Boston, MA 02115
- **Phone:** (617) 355-6105
## 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:** Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2001
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1295773588) · Data from the CMS NPPES public registry.