Brian Acker, M.D.
Brian Acker is a Specialist provider (Specialist) practicing in Springfield, MA, registered in the NPPES registry with NPI 1619077369 since 2006. The credential MD stands for Doctor of Medicine. Practices at Pioneer Valley Radiation Oncology, PC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1619077369 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Brian Acker |
| Credential | M.D. |
| Sex | Male |
| Practice address | 3350 MAIN ST, Springfield, MA, 01107 |
| Phone | 4137949175 |
| Enumeration date | 2006-09-23 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | 74050 | MA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3080137 | Medicaid | MA | — |
Copy-ready billing details
Provider: Brian Acker, M.D. NPI: 1619077369 Taxonomy: 174400000X (Specialist) Address: 3350 MAIN ST, Springfield, MA, 01107
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1023098209 | Linda Bornstein | Individual | Radiation Oncology Physician | Springfield, MA |
| 1609846849 | Mary Ann Lowen | Individual | Radiation Oncology Physician | Springfield, MA |
| 1578530804 | Chandravathi Loke | Individual | Hematology (Internal Medicine) Physician | Springfield, MA |
| 1518928431 | James Stewart | Individual | Medical Oncology Physician | Springfield, MA |
| 1427016484 | Wilson Mertens | Individual | Medical Oncology Physician | Springfield, MA |
| 1548207293 | Gerri Smith | Individual | Nurse Practitioner | Springfield, MA |
| 1750325791 | Leslie Howard | Individual | Hematology & Oncology Physician | Springfield, MA |
| 1619903663 | Marichelle Uy | Individual | Medical Physician Assistant | Springfield, MA |
Verify this record
Cross-check NPI 1619077369 against the authoritative CMS record: view Brian Acker on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.