Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Antonia Elizabeth Stephen, MD
Surgery Physician in Boston, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386626679
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Registry record
Entity type Individual (Type 1)
Name Dr. Antonia Elizabeth Stephen
Credential MD
Sex Female
Practice address 55 Fruit St, Surgical Oncology Associates Yaw 7b, Boston, MA, 02114
Phone (617) 726-0531
Fax (617) 724-3895
Enumeration date Nov 14, 2005
Last updated in NPPES Jul 30, 2012
Taxonomy & licenses
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 |
|---|---|---|---|
| J27326 | Other | MA | BCBS MA |
| 760800 | Other | MA | TUFTS HEALTH PLAN |
| 2041031 | Medicaid | MA | - |
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.
Frequently asked questions
Is NPI 1386626679 active?
Yes, as of the latest NPPES snapshot, NPI 1386626679 is active (record last updated 2012-07-30).
How do I verify Antonia Stephen's NPI record?
Cross-check NPI 1386626679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-30.