Charles Birbara, M.D.
NPI 1093705410 · Specialist · Worcester, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Birbara, M.D. is a Specialist provider in Worcester, MA (NPI 1093705410).
Provider details
- NPI number
- 1093705410
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32425 (MA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,054 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection Into Tendon Or Ligament20550 | 1,702 | $38 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 969 | $61 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 482 | $29 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 445 | $75 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 350 | $136 |
| Aspiration And/Or Injection of Fluid From Small Joint20600 | 347 | $37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 221 | 33 |
| Methotrexate Sodiumbrand: Methotrexate | 138 | 43 |
| Gabapentin | 125 | 31 |
| Tramadol Hcl | 91 | 16 |
| Prednisone | 86 | 37 |
| Meloxicam | 52 | 20 |
| Oxycodone Hcl/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,522 across 124 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2012-06-08
Frequently asked questions
- What is Charles Birbara's NPI number?
- Charles Birbara's National Provider Identifier (NPI) is 1093705410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Birbara's specialty?
- Charles Birbara is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Charles Birbara located?
- Charles Birbara's practice location on file with NPPES is 25 Oak Ave, Worcester, MA 01605-2751.
- What is Charles Birbara's phone number?
- The practice phone number listed in the NPPES registry for Charles Birbara is (508) 799-2674.
- Does Charles Birbara accept Medicare?
- Charles Birbara is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Birbara's NPI active?
- Yes — Charles Birbara's NPI (1093705410) is active in the NPPES registry as of the last update on 2012-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.