MR. DAVID J DEROSIER JR. ACNPC-AG, CPNP-AC
NPI 1053935072
Nurse Practitioner - Acute Care in Worcester, MA
About Mr. David J Derosier Jr. Acnpc-ag, Cpnp-ac NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. DAVID J DEROSIER JR. ACNPC-AG, CPNP-AC (NPI 1053935072) is an individual acute care provider in Worcester, Massachusetts, licensed in Massachusetts (RN269379) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS, is affiliated with St Vincent Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 4
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
Mr. David J Derosier Jr. Acnpc-ag, Cpnp-ac 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 David Derosier reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Framingham, MA 01702
- Reassigned Medicare billing, Massachusetts enrollment
- 156 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.
St Vincent Hospital
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01655 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.
WORCESTER, MA 01655
WORCESTER, MA 01655
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 David Derosier's NPI number?
The NPI number for David Derosier is 1053935072. It was assigned to this individual provider in the NPPES registry on June 5, 2020.
Where is David Derosier located?
David Derosier practices at 55 Lake Ave N Pediatric Critical Care, Worcester, MA 01655. The listed phone number is (774) 442-2164.
What is David Derosier's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is David Derosier enrolled in Medicare?
Yes. David Derosier 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 David Derosier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Derosier reassigns Medicare benefits to 2 organizations: Umass Memorial Medical Group Inc (Worcester, MA) and Hospitalist Physicians Of Massachusetts PC (Framingham, 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 David Derosier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Derosier accept?
Health plans from Taro Health list David Derosier 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 David Derosier affiliated with any hospitals?
According to CMS data, David Derosier is affiliated with St Vincent Hospital.
When was this NPI record last updated?
The NPPES record for David Derosier was last updated on December 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Mr. David J Derosier Jr., ACNPC-AG, CPNP-AC · NPI 1053935072
Acute Care physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since June 5, 2020.
## Identity
- **NPI:** 1053935072 (Entity type: Individual)
- **Enumerated:** June 5, 2020
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** RN269379 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVE N, PEDIATRIC CRITICAL CARE, Worcester, MA 01655-0002
- **Phone:** (774) 442-2164 · **Fax:** (774) 443-2062
## 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): Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA); Hospitalist Physicians Of Massachusetts PC (NPI 1376145680, Framingham, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** December 12, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1053935072) · Data from the CMS NPPES public registry.