Active NPI 1346476132 Individual Practitioner Male Practitioner

Dr. Joseph Charpentier , DO

Internal Medicine • Worcester, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Joseph Charpentier, DO is a certified Internal Medicine practicing in Worcester, MA. With approximately 17 years of clinical experience since graduating from University Of New England, College Of Osteo Medicine in 2009, Dr. Charpentier delivers high-quality medical care to the local community at 55 LAKE AVE N.

Dr. Charpentier is affiliated with Mainegeneral Medical Center and accepts Medicare assignment.

Frequently performed procedures and clinical services include removal of polyps or growths of large bowel using an endoscope with mechanical snare, diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Lake Ave N

Worcester, MA 016550002

Telephone 7744422173

Associated Practice Facility / Clinic

🏢 Umass Memorial Medical Center Facility NPI 1679574933

Medicare Profile & Education

Medical School

University Of New England, College Of Osteo Medicine

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Worcester, MA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs -2.4 yrs vs City Avg

City Avg: 19.4 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

460 Specialists

Practicing in Worcester, MA (7127 Statewide)

Telehealth Adoption Rate

15.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

62.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Charpentier (17 Years) 17 Yrs

Worcester Specialty Average (19.4 Years) 19.4 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	122	121	$559.21	$223.68
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	70	66	$242.50	$99.23
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	57	54	$272.47	$89.06
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	52	50	$364.21	$160.78
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	35	33	$346.17	$144.85
45378 Diagnostic exam of large bowel using a flexible endoscope	27	27	$391.70	$135.59
43249 Balloon dilation of esophagus using an endoscope	17	17	$300.94	$124.20
45380 Biopsy of large bowel using an endoscope	13	13	$470.77	$118.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	105	105	$556.00	$226.43
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	59	55	$241.00	$94.14
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	56	53	$271.00	$95.60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	32	31	$362.00	$159.35
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	29	25	$107.00	$91.87
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	25	25	$344.00	$166.25
45378 Diagnostic exam of large bowel using a flexible endoscope	23	23	$392.00	$150.09
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	19	19	$11.00	$4.97
45380 Biopsy of large bowel using an endoscope	14	14	$468.00	$112.42
43249 Balloon dilation of esophagus using an endoscope	13	12	$300.00	$127.58
99213 Established patient office or other outpatient visit, typically 15 minutes	12	11	$72.00	$62.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	128	128	$556.00	$226.10
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	93	87	$241.00	$98.22
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	71	66	$362.00	$187.43
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	51	50	$271.00	$83.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	32	$107.00	$93.62
45378 Diagnostic exam of large bowel using a flexible endoscope	34	34	$392.00	$165.34
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	22	22	$344.00	$169.99
43249 Balloon dilation of esophagus using an endoscope	20	19	$300.00	$128.19
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	20	20	$344.00	$160.79
45380 Biopsy of large bowel using an endoscope	16	16	$468.00	$134.54
91110 Imaging of digestive tract done from the inside of the digestive tract	16	14	$834.00	$109.30
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	13	13	$11.00	$5.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	141	141	$556.00	$234.16
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	86	83	$241.00	$104.29
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	84	77	$271.00	$110.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	63	50	$107.00	$97.14
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	57	55	$361.68	$193.93
45380 Biopsy of large bowel using an endoscope	32	31	$468.00	$110.78
45378 Diagnostic exam of large bowel using a flexible endoscope	31	31	$392.00	$168.15
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	27	27	$344.00	$163.72
43249 Balloon dilation of esophagus using an endoscope	23	21	$300.00	$125.71
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	13	13	$11.00	$5.27
91110 Imaging of digestive tract done from the inside of the digestive tract	12	12	$834.00	$125.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	131	128	$556.00	$239.90
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	71	65	$238.63	$109.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	67	50	$114.25	$77.89
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	65	60	$267.60	$110.48
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	43	42	$277.00	$135.64
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	35	35	$11.00	$5.45
45378 Diagnostic exam of large bowel using a flexible endoscope	29	27	$392.00	$151.10
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	25	$359.00	$199.72
45380 Biopsy of large bowel using an endoscope	23	23	$468.00	$115.69
99441 Telephone medical discussion with physician, 5-10 minutes	19	18	$63.74	$25.22
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	15	14	$344.00	$163.05
45390 Removal of large bowel tissue using an endoscope	14	14	$529.86	$332.56
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	13	12	$437.69	$161.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	144	139	$518.53	$238.41
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	103	95	$258.00	$101.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	99	73	$111.91	$76.67
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	69	66	$229.00	$106.85
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	43	43	$11.00	$5.39
45380 Biopsy of large bowel using an endoscope	39	39	$416.85	$77.22
45378 Diagnostic exam of large bowel using a flexible endoscope	33	33	$365.82	$156.14
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	28	28	$359.00	$196.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	28	28	$277.00	$132.92
43249 Balloon dilation of esophagus using an endoscope	22	16	$336.00	$143.56
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	22	18	$545.00	$190.74
45390 Removal of large bowel tissue using an endoscope	20	19	$391.00	$323.43
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	19	19	$344.00	$156.61
45381 Injection beneath lining of large bowel using a flexible endoscope	12	12	$402.17	$15.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	116	110	$644.62	$230.43
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	92	90	$391.37	$113.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	57	44	$122.95	$75.19
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	38	$277.00	$131.74
45380 Biopsy of large bowel using an endoscope	38	36	$600.37	$97.30
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	31	31	$44.35	$5.32
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	30	28	$392.33	$105.00
45381 Injection beneath lining of large bowel using a flexible endoscope	22	20	$689.73	$24.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$290.50	$124.39
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	12	$545.00	$187.07
43249 Balloon dilation of esophagus using an endoscope	16	16	$336.00	$132.42
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	15	14	$405.47	$148.43
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	14	14	$384.00	$195.55
45390 Removal of large bowel tissue using an endoscope	14	14	$391.00	$329.56
45378 Diagnostic exam of large bowel using a flexible endoscope	14	14	$673.29	$162.92
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	11	11	$595.45	$165.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	84	78	$1026.00	$245.94
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	67	64	$667.00	$121.22
99213 Established patient office or other outpatient visit, typically 15 minutes	55	44	$66.87	$48.92
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	48	48	$105.00	$5.31
45380 Biopsy of large bowel using an endoscope	37	37	$913.00	$94.22
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	34	34	$579.00	$113.46
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	31	31	$277.00	$131.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$104.59	$73.22
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	17	16	$1266.00	$164.94
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	14	14	$1266.00	$167.54

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 240870

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Hospital & Practice Group Affiliations

Mainegeneral Medical Center

35 Medical Ctr Pkwy, Augusta, ME 043308160

Phone: 2076211000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

7 Associated Practitioners

Dr. Keith Boundy , MD

Internal Medicine - Infectious Disease

NPI 1215197561

Doctor of Medicine (M.D.)

Dr. Sorina Ghiran , MD

Internal Medicine

NPI 1265744833

Doctor of Medicine (M.D.)

Dr. Richard Forster , MD

Internal Medicine

NPI 1336122191

Doctor of Medicine (M.D.)

Dr. Sara Keihanian , MD

Internal Medicine

NPI 1427284215

Doctor of Medicine (M.D.)

Kalie Lodowsky , PA-C

Physician Assistant

NPI 1689113078

Physician Assistant (Certified)

Dr. Arpankumar Thaker , MD

Internal Medicine

NPI 1780905455

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active February 22, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location February 22, 2012

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 7744422173)

📍

Updated Business Mailing Address February 22, 2012

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 7744422173)

👤

Provider Name / Credentials Updated February 22, 2012

Recorded as JOSEPH CHARPENTIER, D.O.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 22, 2012

Internal Medicine (License #240870 in MA)

🟢

Initial NPI Registration & Enumeration June 08, 2009

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1346476132

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 08, 2009

Last Update: February 22, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

55 Lake Ave N

Worcester, MA 016550002

Phone: 7744422173

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.