James S. Mason, D.O.
Orthopaedic Surgery Physician · Lowville, NY
James S. Mason, D.O. is an orthopaedic surgery physician with a practice address in Lowville, New York, and NPI 1902870934, issued on Feb 15, 2006. Check the license (New York 309442, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- James S. Mason
- Credential
- D.O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 309442 NY
027867 GA
Self-reported in NPPES; status is on the state search - Practice location
- 7785 N State St Ste 120, Lowville, NY 13367
- Phone
- (315) 376-4505
- Enumerated
- Feb 15, 2006
- Record last updated
- Apr 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (313) 376-4259
- Medicaid ID
- 000790743D GA
- Medicare enrollment
- Enrolled (PECOS I20210524001727); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 1984
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 1,339 in New York → Look up another NPI →
Also registered at 7785 N State St Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evan Leibelsperger, PA-CPhysician Assistant1396057691
- Steven Pals, MDOrthopaedic Surgery Physician1063503217
- Nicholas Perry, M.D.Orthopaedic Surgery Physician1982016275
- Nelson Wiegman, MDOrthopaedic Surgery Physician1316996119
- Shane Woolf, MDOrthopaedic Surgery Physician1326044686
Verify James S. Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 309442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
143 Medicare Part D claims for 64 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Meloxicam37 claims
- Celecoxib15 claims
- Hydrocodone-Acetaminophen11 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: $14.45
1 payment: food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. The 15,003 providers of this specialty with any payment received $23,022.89 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.
One hospital affiliation
- Lewis County General HospitalLowville, NY · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
James S. Mason among 1,339 orthopaedic surgery physician records in New York
James S. Mason, D.O. is one of 1,339 orthopaedic surgery physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 44% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1984 · median 2002 among the 819 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 orthopaedic surgery physician records list a practice address in Lowville
They are 7 of the 234 NPPES records with a practice address in Lowville, and 1,339 orthopaedic surgery physician records in New York.
All 1,339 in New York → Every provider in Lowville → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Dwight Campbell, M.D.Lowville, NY 133671528041613
- Jeffrey Gundel, MDLowville, NY 133671174693949
- Steven Pals, MDLowville, NY 133671063503217
- Nicholas Perry, M.D.Lowville, NY 133671982016275
- Nelson Wiegman, MDLowville, NY 133671316996119
- Shane Woolf, MDLowville, NY 133671326044686
- Russell Lafrance, M.D.Hamilton, NY 133461245356187
- Raymond Meeks, MDHamilton, NY 133461861451684
Common questions
What is James S. Mason, D.O.'s NPI number?
James S. Mason, D.O.'s National Provider Identifier (NPI) is 1902870934, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James S. Mason, D.O. located?
The NPPES record lists a practice address at 7785 N State St Ste 120, Lowville, NY, 13367. Phone: (315) 376-4505. Providers update this record themselves, so call before visiting.
How can I verify James S. Mason, D.O.'s license?
NPPES lists New York license number 309442, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James S. Mason, D.O. prescribe under Medicare Part D?
In 2024, James S. Mason, D.O. had 143 Medicare Part D claims for 64 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.