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Dr. Joseph M. Williams, MD
NPI1467567438PAC ID6103869086
- Medicare services, 2024
- 2,887
- Medicare patients, 2024
- 989
- Part D claims, 2024
- 2,982
- Publications
- 1
- MIPS score, 2024
- 92
- Practice address
- 300 Grove Street, Worcester, MA 01605
- Practice phone
- Call (508) 754-0700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Worcester Surgical Center
Surgery Center - Medicare-Certified · Worcester, Massachusetts
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Dr. Joseph M. Williams is an ophthalmologist in Worcester, Massachusetts
Dr. Williams practices at Worcester Surgical Center in Worcester, Massachusetts.
Dr. Williams' NPI, 1467567438, was assigned on August 20, 2006. Dr. Williams graduated from University of Rochester School of Medicine and Dentistry in 1989. Dr. Williams holds Massachusetts license 150862.
NPI and contact details
- NPI
- 1467567438NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103869086
- NPI enumeration date
- August 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 754-0700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph M. Williams practices at Worcester Surgical Center in Worcester, Massachusetts
Dr. Williams' primary practice is Worcester Surgical Center, at 300 Grove Street, Worcester, MA 01605. The practice phone is (508) 754-0700.
- Worcester Surgical Center300 Grove Street, Worcester, MA 01605Phone(508) 754-0700
Source: Dmand AI Affiliation Data
Dr. Joseph M. Williams is affiliated with 2 sites of care
Dr. Williams' primary practice is Worcester Surgical Center in Worcester, Massachusetts. Dmand AI also links Dr. Williams to 1 physician office, named with a free account.
Worcester Surgical CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph M. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Worcester Surgical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph M. Williams is one of 617 ophthalmologists in Massachusetts
Ophthalmology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Williams is licensed in Massachusetts.
Specialties and state licenses
- Ophthalmology, MassachusettsPrimary
Ophthalmologists near Dr. Williams
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joseph M. Williams billed Medicare for 2,887 services in 2024
CMS data shows 2,887 Medicare services from Dr. Williams across 16 procedure codes in 2024, for 989 Medicare patients. Medicare paid $231,277 for them.
Medicare services, 20242,887
Medicare patients989
Paid by Medicare$231,277
Procedure codes16
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,5892024: 2,05629%
- Office and hospital visits
- 2023: 6162024: 6506%
- Surgery
- 2023: 1742024: 1814%
- Imaging
- 2023: 152024: 0100%
Where Dr. Williams' Medicare services took place, 2024
- In an office2,75095%
- In a facility1375%
Dr. Williams compared with the Massachusetts median for ophthalmologists, 2024
- Dr. Williams
- Massachusetts median
- Medicare services
- 2,887vs 1,59881% above
- Medicare patients
- 989vs 59466% above
- Part D claims
- 2,863vs 5455.3 times
Medians across 612 ophthalmologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other ophthalmologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph M. Williams treated 989 Medicare patients in 2024, average age 77
CMS counts 989 Medicare patients who saw Dr. Williams in 2024. The largest group is 75 to 84, with 447 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 75, with 54% women.
Medicare patients, 2024989
Average age77
Average risk score1.13
Also on Medicaid11%
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women61462%
- Men37538%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Anxiety25%
- Chronic kidney disease25%
- Diabetes25%
- Ischemic heart disease23%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph M. Williams wrote 2,982 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 2,982 Medicare Part D claims for 616 patients. 64% of them were for generic drugs. CMS names the drug for 2,863 of them, across 24 drugs with 11 or more claims each, at $219,878 in total drug cost. In 2023, CMS named 2,140 claims across 22 drugs.
Part D claims, 20242,982
Drugs named by CMS24
Total drug cost$219,878
Part D patients616
Dr. Williams' Part D claims by kind of drug, 2024
- Generic1,903 claims64%
- Brand-name1,079 claims36%
Dr. Williams' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Williams' Part D claims, 2024
- Antibiotics1%40 of 2,982 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1402024: 2,86334%
Drugs named by CMS: 24 in 2024, 22 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joseph M. Williams scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Williams for performance year 2024, reported individually. Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 220 procedures of cataract surgery by Dr. Williams, more than 85% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Williams' MIPS scores, performance year 2024
- 92of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Williams ranks in Medicare procedure volume
- Cataract surgery
- 85th percentile220 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Joseph M. Williams has 1 publication on record
Dmand AI links 1 paper to Dr. Williams.
Papers1
Recent publications by Dr. Williams
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joseph M. Williams received $2,137 in industry payments from 2016 to 2025
CMS Open Payments shows 52 general payments to Dr. Williams from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Alcon Laboratories Inc paid the most, $553.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
$2.1Kin total
- Food and beverage$2,12399%
- Entertainment$141%
Companies that paid Dr. Williams the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph M. Williams graduated from University of Rochester School of Medicine and Dentistry
Dr. Williams graduated from University of Rochester School of Medicine and Dentistry in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joseph M. Williams's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joseph M. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joseph M. Williams' NPI number?
Dr. Joseph M. Williams' NPI number is 1467567438. It was assigned on August 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph M. Williams?
Dr. Joseph M. Williams is an ophthalmologist in Worcester, Massachusetts. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Joseph M. Williams practice?
Dr. Williams practices at 300 Grove Street, Worcester, MA 01605. Dr. Williams' primary practice is Worcester Surgical Center in Worcester, Massachusetts. Dmand AI also links Dr. Williams to 1 physician office.
What is Dr. Joseph M. Williams' office phone number?
The practice phone on file for Dr. Williams is (508) 754-0700.
What is Dr. Joseph M. Williams' medical license number?
Dr. Williams holds Massachusetts license 150862.
Does Dr. Joseph M. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 2,887 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. Joseph M. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 92 out of 100, reported individually.
How many Medicare patients does Dr. Joseph M. Williams see?
CMS counts 989 Medicare patients who saw Dr. Williams in 2024, with an average age of 77.
What services does Dr. Joseph M. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were eye exam or test (92014), office visit, established patient (99213) and eye exam or test (92250).
Where did Dr. Joseph M. Williams go to medical school?
Dr. Williams graduated from University of Rochester School of Medicine and Dentistry in 1989.
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What drugs does Dr. Joseph M. Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Tobramycin-Dexamethasone.
Has Dr. Joseph M. Williams received payments from drug or device companies?
CMS Open Payments shows $2,137 in general payments to Dr. Williams from 17 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Joseph M. Williams been practicing?
Dr. Williams graduated from medical school in 1989, 37 years ago.
Does Dr. Joseph M. Williams do research?
Dmand AI links 1 publication to Dr. Williams.
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