Dr. Jayson R. St. Jacques, M.D.
Dr. Jayson R. St. Jacques is a Diagnostic Radiology Physician provider (Radiology) practicing in Springfield, MA, registered in the NPPES registry with NPI 1629035183 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1629035183 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Jayson R. St. Jacques |
| Credential | M.D. |
| Sex | Male |
| Practice address | 271 CAREW ST, Springfield, MA, 01104 |
| Phone | 4137489200 |
| Enumeration date | 2006-04-27 |
| Last updated in NPPES | 2012-06-04 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207U00000X | Nuclear Medicine Physician | Secondary | 212693 | MA |
| 207UN0902X | Nuclear Imaging & Therapy Physician | Secondary | 212693 | MA |
| 2085N0904X | Nuclear Radiology Physician | Secondary | 212693 | MA |
| 2085R0202X | Diagnostic Radiology Physician | Primary | 212693 | MA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Jayson St. Jacques, M.D. NPI: 1629035183 Taxonomy: 2085R0202X (Diagnostic Radiology Physician) Address: 271 CAREW ST, Springfield, MA, 01104
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1013911957 | Jeffrey Friedman | Individual | Specialist | Springfield, MA |
| 1992703623 | Barbara Carton | Individual | Radiation Oncology Physician | Springfield, MA |
| 1659379956 | Springfield Radiation Oncology | Organization | Radiation Oncology Physician | Springfield, MA |
| 1851383434 | Geraldine Kennedy | Individual | Family Nurse Practitioner | Springfield, MA |
| 1043204316 | The Mercy Hospital Inc | Organization | General Acute Care Hospital | Springfield, MA |
| 1407845282 | Mercy Inpatient Medical Associates Inc. | Organization | Internal Medicine Physician | Springfield, MA |
| 1851374656 | John Ogrady | Individual | Maternal & Fetal Medicine Physician | Springfield, MA |
| 1770569964 | Pioneer Valley Eye Surgery and Laser Center, LLC | Organization | Ophthalmologic Surgery Clinic/Center | Springfield, MA |
Verify this record
Cross-check NPI 1629035183 against the authoritative CMS record: view Dr. Jayson R. St. Jacques 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 2012-06-04.