DAVID ALEC BASS
NPI 1346703394
Radiology - Diagnostic Radiology in Worcester, MA
About David Alec Bass NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID ALEC BASS (NPI 1346703394) is an individual diagnostic radiology provider in Worcester, Massachusetts, licensed in Massachusetts (1022608) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Healthalliance Hospitals, and maintains a secondary practice location in Providence.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
David Alec Bass 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 Bass 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
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts and Rhode Island enrollments
- 169 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Healthalliance Hospitals
Acute Care Hospitals · Leominster, MAUmass Memorial Health - Harrington Hospital
Acute Care Hospitals · Southbridge, MAUmass Memorial Healthcare-Marlborough Hospital
Acute Care Hospitals · Marlborough, MAUmass Memorial Medical Center/University Campus
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
WORCESTER, MA 01655
WORCESTER, MA 01655
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 Bass's NPI number?
The NPI number for David Bass is 1346703394. It was assigned to this individual provider in the NPPES registry on April 8, 2019.
Where is David Bass located?
David Bass practices at 55 Lake Avenue North, Worcester, MA 01655. The listed phone number is (508) 334-3850.
What is David Bass's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is David Bass enrolled in Medicare?
Yes. David Bass 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 Bass's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Bass reassigns Medicare benefits to 2 organizations: Umass Memorial Medical Group Inc (Worcester, MA) and Umass Memorial Radiology Phys Serv (Worcester, 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 Bass's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Bass accept?
Health plans from Taro Health list David Bass 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 Bass affiliated with any hospitals?
According to CMS data, David Bass is affiliated with Umass Memorial Healthalliance Hospitals, Umass Memorial Health - Harrington Hospital, Umass Memorial Healthcare-Marlborough Hospital and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for David Bass was last updated on May 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# David Alec Bass · NPI 1346703394
Diagnostic Radiology physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since April 8, 2019.
## Identity
- **NPI:** 1346703394 (Entity type: Individual)
- **Enumerated:** April 8, 2019
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 1022608 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVENUE NORTH, Worcester, MA 01655-0002
- **Phone:** (508) 334-3850
## 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); Umass Memorial Radiology Phys Serv (NPI 1639122096, Worcester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2019
## Record status
- **NPPES last updated:** May 14, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1346703394) · Data from the CMS NPPES public registry.