David J Derosier, ACNPC-AG, CPNP-AC
Nurse Practitioner (CMS) · Worcester, MA
At a glance
55 Lake Ave N, Worcester, MA 01655-0002
NPPES record updated Dec 12, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
55 Lake Ave N Pediatric Critical CareWorcester, MA 01655-0002
Additional reported practice locations
55 Lake Ave NWorcester, MA 016550002
Phone: 7744416468
Fax: 5087936315 123 Summer St
Worcester, MA 016081216
Phone: 5083635000 119 Belmont St
Worcester, MA 016052903
Phone: 7744416468
Fax: 5087936315 300 Longwood Ave
Boston, MA 021155724
Phone: 6173556000
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2019
- CMS specialties
- Nurse Practitioner
Practice groups
Reported hospital affiliations
- St Vincent Hospital Worcester, MA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Nurse Practitioner (CMS)
- Taxonomy code
- 363LA2100X
- Enumeration date
- Jun 5, 2020
- Record updated
- Dec 12, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- ACNPC-AG, CPNP-AC
Reported taxonomies and licenses
363LP0200X
License reported: RN269379 MA
363L00000X
License reported: RN269379 MA
363LA2100X · Primary
License reported: RN269379 MA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
55 Lake Ave NPediatric Critical Care
Worcester, MA 01655-0002
- Phone
- (774) 442-2164
- Fax
- (774) 443-2062
Mailing address
PO BOX 415348BOSTON, MA 022415348
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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