DR. REBECCA KNAPP M.D.
NPI 1609854983
Psychiatry & Neurology - Psychiatry in Worcester, MA
About Dr. Rebecca Knapp M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. REBECCA KNAPP M.D. (NPI 1609854983) is an individual psychiatry provider in Worcester, Massachusetts, licensed in Massachusetts (73340) and active in the NPI registry since January 2006. She has opted out of Medicare through May 16, 2028.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
Dr. Rebecca Knapp M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 16, 2024 through May 16, 2028.
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 Rebecca Knapp's NPI number?
The NPI number for Rebecca Knapp is 1609854983. It was assigned to this individual provider in the NPPES registry on January 6, 2006.
Where is Rebecca Knapp located?
Rebecca Knapp practices at 55 Lake Ave N Department Of Psychiatry, Worcester, MA 01655. The listed phone number is (508) 856-2537.
What is Rebecca Knapp's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Rebecca Knapp enrolled in Medicare?
No. Rebecca Knapp has opted out of Medicare through May 16, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.
What insurance does Rebecca Knapp accept?
Health plans from Harvard Pilgrim Health Care list Rebecca Knapp 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 Rebecca Knapp 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 36 days 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. Rebecca Knapp, M.D. · NPI 1609854983
Psychiatry physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since January 6, 2006.
## Identity
- **NPI:** 1609854983 (Entity type: Individual)
- **Enumerated:** January 6, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 73340 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVE N, DEPARTMENT OF PSYCHIATRY, Worcester, MA 01655-0002
- **Phone:** (508) 856-2537
## Medicare
- **Medicare:** Opted out of Medicare (opt-out affidavit on file, in effect through May 16, 2028); services are provided under private contract
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 3170306 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1609854983) · Data from the CMS NPPES public registry.