Joseph Charpentier, D.O.
NPI 1346476132 · Internal Medicine Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Charpentier, D.O. is a Internal Medicine Physician provider in Worcester, MA (NPI 1346476132).
Provider details
- NPI number
- 1346476132
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 240870 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
393 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 122 | $224 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235 | 70 | $99 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 57 | $89 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 52 | $161 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 35 | $145 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 380 | 352 |
| Pantoprazole Sodium | 183 | 61 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Gavilyte-N | 56 | 54 |
| Ursodiol | 31 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 25 | 25 |
| Omeprazole | 24 | 11 |
| Budesonidebrand: Budesonide Dr |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,754 across 42 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
- 2009-06-08
- Last updated
- 2012-02-22
Frequently asked questions
- What is Joseph Charpentier's NPI number?
- Joseph Charpentier's National Provider Identifier (NPI) is 1346476132, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Charpentier's specialty?
- Joseph Charpentier is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Charpentier located?
- Joseph Charpentier's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Joseph Charpentier's phone number?
- The practice phone number listed in the NPPES registry for Joseph Charpentier is (774) 442-2173.
- Does Joseph Charpentier accept Medicare?
- Joseph Charpentier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Charpentier's NPI active?
- Yes — Joseph Charpentier's NPI (1346476132) is active in the NPPES registry as of the last update on 2012-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.