WILLIAM BIGELOW SCHWARTZ LCSW
NPI 1447865423
Social Worker - Clinical in Holyoke, MA
About William Bigelow Schwartz Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM BIGELOW SCHWARTZ LCSW (NPI 1447865423) is an individual clinical provider in Holyoke, Massachusetts, licensed in Massachusetts (228302) and active in the NPI registry since September 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
William Bigelow Schwartz Lcsw 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 William Schwartz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Holyoke, MA 01040
- Reassigned Medicare billing, Massachusetts enrollment
- 144 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01040 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.
HOLYOKE, MA 01040
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 William Schwartz's NPI number?
The NPI number for William Schwartz is 1447865423. It was assigned to this individual provider in the NPPES registry on September 15, 2020.
Where is William Schwartz located?
William Schwartz practices at 303 Beech St, Holyoke, MA 01040. The listed phone number is (413) 377-6363.
What is William Schwartz's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is William Schwartz enrolled in Medicare?
Yes. William Schwartz 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 William Schwartz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Schwartz reassigns Medicare benefits to River Valley Counseling Center, Inc (Holyoke, 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 William Schwartz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Schwartz was last updated on August 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# William Bigelow Schwartz, LCSW · NPI 1447865423
Clinical provider in Holyoke, Massachusetts. Individual provider, active in the CMS NPPES registry since September 15, 2020.
## Identity
- **NPI:** 1447865423 (Entity type: Individual)
- **Enumerated:** September 15, 2020
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 228302 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 303 BEECH ST, Holyoke, MA 01040-3968
- **Phone:** (413) 377-6363
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** River Valley Counseling Center, Inc (NPI 1851444616, Holyoke, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 30, 2022
- **Other identifiers:** Other 228302 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1447865423) · Data from the CMS NPPES public registry.