DR. HALLIE GELLER MD
NPI 1134860273
Student in an Organized Health Care Education/Training Program in Worcester, MA
About Dr. Hallie Geller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HALLIE GELLER MD (NPI 1134860273) is an individual student in an organized health care education/training program in Worcester, Massachusetts and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Dr. Hallie Geller Md 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 Hallie Geller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brockton, MA 02301
- Reassigned Medicare billing, Massachusetts enrollment
- 409 clinicians in this Medicare group
Taunton, MA 02780
- Reassigned Medicare billing, Massachusetts enrollment
- 45 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.
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 01606
WORCESTER, MA 01606
WORCESTER, MA 01606
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 Hallie Geller's NPI number?
The NPI number for Hallie Geller is 1134860273. It was assigned to this individual provider in the NPPES registry on April 5, 2022.
Where is Hallie Geller located?
Hallie Geller practices at 100 Century Dr, Worcester, MA 01606. The listed phone number is (508) 334-1000.
What is Hallie Geller's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Hallie Geller enrolled in Medicare?
Yes. Hallie Geller 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 Hallie Geller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hallie Geller reassigns Medicare benefits to 2 organizations: Signature Healthcare Medical Group Inc (Brockton, MA) and The Commonwealth Of Massachusetts (Taunton, 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 Hallie Geller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hallie Geller accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Hallie Geller 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 Hallie Geller was last updated on October 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Hallie Geller, MD · NPI 1134860273
Student in an Organized Health Care Education/Training Program provider in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since April 5, 2022.
## Identity
- **NPI:** 1134860273 (Entity type: Individual)
- **Enumerated:** April 5, 2022
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 100 CENTURY DR, Worcester, MA 01606-1244
- **Phone:** (508) 334-1000
## 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): Signature Healthcare Medical Group Inc (NPI 1508804949, Brockton, MA); The Commonwealth Of Massachusetts (NPI 1922101724, Taunton, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** October 13, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1134860273) · Data from the CMS NPPES public registry.