Charles M. Janssens, D.O.
Internal Medicine Physician · Ctr Ossipee, NH
Charles M. Janssens, D.O. is an internal medicine physician with a practice address in Ctr Ossipee, New Hampshire, and NPI 1740448489, issued on May 29, 2008. Check the license on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles M. Janssens
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 34.011017 OH
3445 AL
326356 NY
OS024267 PA
U7119 TX
Self-reported in NPPES; status is on the state search - Practice location
- 68 Route 16B, Ctr Ossipee, NH 03814
- Phone
- (603) 651-1441
- Enumerated
- May 29, 2008
- Record last updated
- Sep 4, 2025
- Medicaid ID
- 0107618 OH
- Medicare enrollment
- Enrolled (PECOS I20090928000065); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 673 in New Hampshire → Look up another NPI →
Also registered at 68 Route 16B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathleen Tufts, LADCAddiction (Substance Use Disorder) Counselor1770231565
Verify Charles M. Janssens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
16 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $249.25
2 payments; by number, the most common kind was food and beverage; the largest payer was Noven Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Post Acute Care Specialists LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles M. Janssens among 673 internal medicine physician records in New Hampshire
Charles M. Janssens, D.O. is one of 673 internal medicine physician records with a practice address in New Hampshire. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2005 among the 443 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in New Hampshire
There are 673 internal medicine physician records in New Hampshire.
All 673 in New Hampshire → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Heidi Root, MDConway, NH 038181184736381
- Paul Berry, MDDover, NH 038201548208796
- Homayoun Daneschvar, MDDover, NH 038201558443903
- Mark Dick, M.D.Dover, NH 038201003806084
- John Foley, DODover, NH 038201295723401
- Joseph Graciano, MDDover, NH 038201669411062
- Virginia Keefe Hassett, MDDover, NH 038201578552113
- Restituto Malonso, MDDover, NH 038201760470975
Common questions
What is Charles M. Janssens, D.O.'s NPI number?
Charles M. Janssens, D.O.'s National Provider Identifier (NPI) is 1740448489, issued on May 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Charles M. Janssens, D.O. located?
The NPPES record lists a practice address at 68 Route 16B, Ctr Ossipee, NH, 03814. Phone: (603) 651-1441. Providers update this record themselves, so call before visiting.
How can I verify Charles M. Janssens, D.O.'s license?
Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles M. Janssens, D.O. prescribe under Medicare Part D?
In 2024, Charles M. Janssens, D.O. had 16 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.