Charles A. Birbara, M.D.
Charles A. Birbara, M.D. is a healthcare organization registered as Rheumatology Physician in Worcester, MA, holding Type 2 (organization) NPI 1659422699 since 2007. The authorized official on file is Charles Birbara, M.D..
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659422699 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Charles A. Birbara, M.D. |
| Practice address | 25 OAK AVE, Worcester, MA, 01605 |
| Phone | 5087992674 |
| Fax | 5087992586 |
| Enumeration date | 2007-01-16 |
| Last updated in NPPES | 2012-06-08 |
Authorized official
| Name | Charles Birbara |
|---|---|
| Title | M.D. |
| Phone | 5087992674 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RR0500X | Rheumatology Physician | Primary | — | MA |
Copy-ready billing details
Provider: Charles A. Birbara, M.D. NPI: 1659422699 Taxonomy: 207RR0500X (Rheumatology Physician) Address: 25 OAK AVE, Worcester, MA, 01605
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1093705410 | Charles Birbara | Individual | Specialist | Worcester, MA |
| 1093765455 | Richard Eisenberg | Individual | Ophthalmology Physician | Worcester, MA |
| 1992755359 | Worcester Ophthalmology Associates, Inc | Organization | Ophthalmology Physician | Worcester, MA |
| 1922023787 | Stuart Weisman | Individual | Ophthalmology Physician | Worcester, MA |
| 1881884914 | Charles Roberts | Individual | Ophthalmology Physician | Worcester, MA |
| 1609187046 | Teri Kleinberg | Individual | Ophthalmology Physician | Worcester, MA |
| 1629357900 | Mary Decesare-Flaherty | Individual | Nurse Practitioner | Worcester, MA |
| 1417660010 | Worcester Ophthalmology Associates, Inc | Organization | Ophthalmology Physician | Worcester, MA |
Verify this record
Cross-check NPI 1659422699 against the authoritative CMS record: view Charles A. Birbara, M.D. 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
Who is the authorized official for Charles A. Birbara, M.D.?
What is the NPI number for Charles A. Birbara, M.D.?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-06-08.