Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Barger, CNM
Midwife in Boston, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235289109
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mary Barger
Credential CNM
Sex Female
Practice address 133 Brookline Ave, Boston, MA, 02215
Phone (617) 421-1000
Enumeration date Jan 11, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care.
About the CNM credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0368181 | Medicaid | MA | - |
| 4252476-001 | Other | MA | CIGNA |
| CN0189 | Other | MA | BCBS |
| 50232 | Other | MA | HPHC |
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 1235289109 active?
Yes, as of the latest NPPES snapshot, NPI 1235289109 is active (record last updated 2007-07-08).
How do I verify Mary Barger's NPI record?
Cross-check NPI 1235289109 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Claire Cronin Surgery Physician · Boston, MA NPI 1720084833 Renu Soni Internal Medicine Physician · Boston, MA NPI 1649276585 Marshall Katz Cardiovascular Disease Physician · Boston, MA NPI 1124024013 James Wharam Internal Medicine Physician · Boston, MA NPI 1740280288 Jennifer Fournier Nurse Practitioner · Boston, MA NPI 1801898275 David Agoada Podiatrist · Boston, MA NPI 1558353714 Christopher Andreoli Ophthalmology Physician · Boston, MA NPI 1134112188 Jerome Auerbach Diagnostic Radiology Physician · Boston, MA NPI 1417942129
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.