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BRIAN ACKER M.D.
NPI 1619077369
Specialist in Springfield, MA

Active since September 23, 2006PECOS Enrolled
3350 MAIN ST, SPRINGFIELD, MA 01107(413) 794-9175 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Brian Acker M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRIAN ACKER M.D. (NPI 1619077369) is an individual specialist in Springfield, Massachusetts, licensed in Massachusetts (74050) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619077369
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameBRIAN ACKERCredential: M.D.
Location Address3350 MAIN STSpringfield, MA 01107-1112
Mailing Address86 Salem RdLongmeadow, MA 01106-1624 · (413) 794-9175
Phone(413) 794-9175
Sole ProprietorNo
Enumeration DateSeptember 23, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1619077369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in MA · 74050
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
3350 MAIN ST, Springfield, MA 01107
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Other Identifiers 3

Medicare UPINE87689MA
Medicaid3080137MA
Medicare ID-Type UnspecifiedJ11227MA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brian Acker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Brian Acker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Berkshire Radiation Oncology PC
40 mi
Radiation Oncology
725 NORTH ST
Pittsfield, MA 01201
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2 clinicians in this Medicare group
NPI 1407912645 (413) 447-2461

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.

MS. GINA MARIE GHIRARDI RD, LDN
Dietitian, Registered
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-3967
LINDA ESTHER BORNSTEIN MD
Radiology (Radiation Oncology)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9175
SUDEEP K SIDDAPPA MALLESHAPPA M.D.,
Internal Medicine (Hematology & Oncology)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9338
ANNA MARIA FLEISCHMAN APRN
Nurse Practitioner (Acute Care)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9338
SYED S ALI III MD
Internal Medicine (Medical Oncology)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9338
DR. RAWAD ELIAS MD
Internal Medicine (Hematology & Oncology)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9338
MRS. JENNIFER MARIE ALLI DNP FNP-BC
Nurse Practitioner (Family)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9338
ARMEN ASIK M.D
Internal Medicine (Medical Oncology)
3350 MAIN ST
SPRINGFIELD, MA 01107
Hampden County (413) 794-9338

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 Brian Acker's NPI number?

The NPI number for Brian Acker is 1619077369. It was assigned to this individual provider in the NPPES registry on September 23, 2006.

Where is Brian Acker located?

Brian Acker practices at 3350 Main St, Springfield, MA 01107. The listed phone number is (413) 794-9175.

What is Brian Acker's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Brian Acker enrolled in Medicare?

Yes. Brian Acker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Brian Acker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brian Acker reassigns Medicare benefits to Berkshire Radiation Oncology PC (Pittsfield, 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 Brian Acker'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 Brian Acker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.