Quick answers
- Does Timothy W. Gilliam accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy W. Gilliam accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Timothy W. Gilliam see?
- In 2024, CMS data shows 174 Original Medicare patients and 2,264 services for Timothy W. Gilliam. This counts Original Medicare only and measures volume, not quality.
- What is Timothy W. Gilliam's NPI number?
- 1265182810. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Timothy W. Gilliam, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 174 |
|---|---|
| Services billed to Medicare | 2,264 |
| Different services or procedures | 61 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg (J7325)1,058 services
- Aspiration and/or injection of fluid from large joint (20610)169 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)169 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)141 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)92 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis75%
- Diabetes33%
- Ischemic heart disease22%
- Depression20%
Hospitals where Timothy W. Gilliam works
Medicare's Facility Affiliation Data lists Timothy W. Gilliam at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Carthage Area Hospital, IncCarthage, NY · Critical Access Hospital · Emergency services: listed by Medicare · CCN 331318
- Clifton-Fine HospitalStar Lake, NY · Rural Emergency Hospital · Emergency services: listed by Medicare · CCN 330799
- Oswego HospitalOswego, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330218
- River Hospital ClinicsAlexandria Bay, NY · Critical Access Hospital · Emergency services: listed by Medicare · CCN 331309
- Samaritan Medical CenterWatertown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330157
Practice locations
Addresses where Timothy W. Gilliam is enrolled with Medicare (CMS data updated October 2, 2026).
- 1571 Washington St, Suite 201Watertown, NY 13601 (315) 782‑1650
Group practices
Medicare enrollment lists Timothy W. Gilliam as a member of this group (CMS data updated October 2, 2026).
- North Country Orthopaedic Group PC18 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Watertown
Clinicians with the same Medicare primary specialty in Watertown, NY — not a recommendation.
Other clinicians in North Country Orthopaedic Group PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1265182810 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians