Joseph M Williams, M.D.
Ophthalmology · Worcester, MA
At a glance
591 Lincoln St, Worcester, MA 01605-1932
Published activity: Cataract surgery. View counts and coverage
NPPES record updated May 11, 2017. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
591 Lincoln StWorcester, MA 01605-1932
Education & affiliations
- Medical / professional school
- University Of Rochester School Of Medicine And Dentistry
- Graduation year
- 1989
- CMS specialties
- Ophthalmology
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Cataract surgery | 220 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Reported clinician measures
Measures below describe reported clinician performance in the stated period. They do not form an overall HCPList rating, and reporting differs between clinicians.
Published clinical measures
- Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
- 7%2024Published MIPS performance rate. Lower rates indicate better performance for this inverse measure. Measure: MIPS_EC_001_overall. Collection type: EHR. Measure denominator: 74.
- Diabetic Retinopathy: Communication with the Physician Managing Ongoing Diabetes Care
- 98%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_019_overall. Collection type: EHR. Measure denominator: 88.
- Cataracts: 20/40 or Better Visual Acuity within 90 Days Following Cataract Surgery
- 99%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_191_overall. Collection type: EHR. Measure denominator: 100.
See all 4 reported measures
- Falls: Screening for Future Fall Risk
- 94%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_318_overall. Collection type: EHR. Measure denominator: 1689.
Source: PY 2024 Clinician Public Reporting: MIPS Measures and Attestations · Published Sep 10, 2026.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $398.77 |
Reporting companies
| Company | Amount |
|---|---|
| ABBVIE INC. | $165.59 |
| ALCON VISION LLC | $77.96 |
| TARSUS PHARMACEUTICALS, INC. | $64.71 |
| BAUSCH & LOMB AMERICAS INC. | $41.91 |
| OYSTER POINT PHARMA, INC. | $26.48 |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $22.12 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Ophthalmology
- Taxonomy code
- 207W00000X
- Enumeration date
- Aug 20, 2006
- Record updated
- May 11, 2017
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207W00000X · Primary
License reported: 150862 MA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
591 Lincoln StWorcester, MA 01605-1932
- Phone
- (508) 853-2020
- Fax
- (508) 459-5082
Mailing address
591 LINCOLN STWORCESTER, MA 016051932
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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