Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Charles A Birbara, M.D.
Specialist in Worcester, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1093705410
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Registry record
Entity type Individual (Type 1)
Name Dr. Charles A Birbara
Credential M.D.
Sex Male
Practice address 25 Oak Ave, Worcester, MA, 01605
Phone (508) 799-2674
Fax (508) 799-2586
Enumeration date Oct 26, 2005
Last updated in NPPES Jun 8, 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 |
|---|---|---|---|
| 2034697 | 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
What specialty is Charles Birbara?
Charles Birbara is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Richard Eisenberg Ophthalmology Physician · Worcester, MA NPI 1093765455 Worcester Ophthalmology Associates, Inc Ophthalmology Physician · Worcester, MA NPI 1992755359 Stuart Weisman Ophthalmology Physician · Worcester, MA NPI 1922023787 Charles A. Birbara, M.D. Rheumatology Physician · Worcester, MA NPI 1659422699 Charles Roberts Ophthalmology Physician · Worcester, MA NPI 1881884914 Teri Kleinberg Ophthalmology Physician · Worcester, MA NPI 1609187046 Mary Decesare-Flaherty Nurse Practitioner · Worcester, MA NPI 1629357900 Worcester Ophthalmology Associates, Inc Ophthalmology Physician · Worcester, MA NPI 1417660010
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-08.