Quick answers
- Does William J. Waterhouse accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Waterhouse 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 William J. Waterhouse see?
- In 2024, CMS data shows 745 Original Medicare patients and 6,629 services for William J. Waterhouse. This counts Original Medicare only and measures volume, not quality.
- What is William J. Waterhouse's NPI number?
- 1275536138. 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 William J. Waterhouse, 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 | 745 |
|---|---|
| Services billed to Medicare | 6,629 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Imaging of retina (92134)1,742 services
- Compounded drug, not otherwise classified (J7999)1,300 services
- Injection of drug into eye (67028)1,156 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)721 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)102 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 pressure62%
- High cholesterol56%
- Arthritis39%
- Diabetes23%
- Chronic kidney disease21%
- Ischemic heart disease18%
Hospitals where William J. Waterhouse works
Medicare's Facility Affiliation Data lists William J. Waterhouse 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.
- Community HospitalGrand Junction, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060054
Practice locations
Addresses where William J. Waterhouse is enrolled with Medicare (CMS data updated October 2, 2026).
- 2478 Patterson Rd, Suite 7Grand Junction, CO 81505 (970) 255‑7065
Group practices
Medicare enrollment lists William J. Waterhouse as a member of this group (CMS data updated October 2, 2026).
- The Retina Center of Western Colorado RLLP3 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Grand Junction
Clinicians with the same Medicare primary specialty in Grand Junction, CO — not a recommendation.
Other clinicians in The Retina Center of Western Colorado RLLP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Uniformed Services Uhs Fe Hebert School Of Med |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275536138 |
| 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