Matthew David Williams, PA-C
- Medicare patients, 2024
- 125
- Part D claims, 2024
- 937
- Hospital affiliations
- 3
- Industry payments
- $164
- Medical group
- 1
- Practice address
- 99 Beauvoir Avenue, Summit, NJ 07901
- Practice phone
- Call (908) 522-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Matthew Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Matthew David Williams is a physician assistant in Summit, New Jersey
Matthew Williams practices at Overlook Medical Center in Summit, New Jersey, part of Atlantic Health System.
Matthew Williams' NPI, 1144749359, was assigned on September 19, 2017. Matthew Williams holds New Jersey license 25MP00493000.
- NPI
- 1144749359NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789943952
- NPI enumeration date
- September 19, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (908) 522-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Matthew David Williams practices at Overlook Medical Center in Summit, New Jersey
Matthew Williams' primary practice is Overlook Medical Center, at 99 Beauvoir Avenue, Summit, NJ 07901 in Union County. The practice phone is (908) 522-2000.
- Overlook Medical Center99 Beauvoir Avenue, Summit, NJ 07901 · Union CountyPhone(908) 522-2000
Source: Dmand AI Affiliation Data
Matthew David Williams is affiliated with 3 sites of care and 1 medical group
Matthew Williams' primary practice is Overlook Medical Center in Summit, New Jersey, part of Atlantic Health System. Matthew Williams is also affiliated with Morristown Medical Center. The medical group on file is Atlantic Medical Group. Dmand AI also links Matthew Williams to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Matthew David Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matthew Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Overlook Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Atlantic Health System and 6.2K+ hospitals, with verified contacts in the same login.
Matthew David Williams is one of 2,975 physician assistants in New Jersey
Physician assistant is Matthew Williams' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Matthew Williams' licenses on file in 2 states: New Jersey and New York.
Specialties and state licenses
- Physician assistant, New JerseyPrimary
- New York license
Physician assistants near Matthew Williams
Counts of physician assistants 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
Matthew David Williams treated 125 Medicare patients in 2024, average age 76
CMS counts 125 Medicare patients who saw Matthew Williams in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.12, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Matthew Williams' median patient age at 69, with 56% women.
Matthew Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Matthew Williams' Medicare patients by sex, 2024
- Women6451%
- Men6149%
Chronic conditions among Matthew Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer46%
- Arthritis44%
- Diabetes34%
- COPD32%
- Chronic kidney disease29%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Matthew Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women56%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matthew David Williams wrote 937 Medicare Part D claims in 2024
In 2024, Matthew Williams wrote 937 Medicare Part D claims for 304 patients. 77% of them were for generic drugs.
Matthew Williams' Part D claims by kind of drug, 2024
- Generic725 claims77%
- Brand-name and other212 claims23%
Drug classes CMS tracks in Matthew Williams' Part D claims, 2024
- Opioids10%98 of 937 claims
- Antibiotics5%47 of 937 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Matthew David Williams takes part in Medicare
Matthew Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Matthew David Williams received $164 in industry payments in 2025
CMS Open Payments shows 8 general payments to Matthew Williams from 7 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $46.
Companies that paid Matthew Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Matthew David 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 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 (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Matthew David 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 Matthew David Williams' NPI number?
Matthew David Williams' NPI number is 1144749359. It was assigned on September 19, 2017, and it is active in the NPI Registry.
What does Matthew David Williams specialize in?
Matthew David Williams is a physician assistant in Summit, New Jersey. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Matthew David Williams practice?
Matthew Williams practices at 99 Beauvoir Avenue, Summit, NJ 07901. Matthew Williams' primary practice is Overlook Medical Center in Summit, New Jersey, part of Atlantic Health System. Dmand AI also links Matthew Williams to 1 hospital.
What is Matthew David Williams' office phone number?
The practice phone on file for Matthew Williams is (908) 522-2000.
What is Matthew David Williams' medical license number?
Matthew Williams holds New Jersey license 25MP00493000, one of the licenses on file in 2 states.
Which states has Matthew David Williams been licensed in?
Dmand AI has state licenses on file for Matthew Williams in New Jersey and New York.
Which hospitals is Matthew David Williams affiliated with?
Matthew Williams practices at Overlook Medical Center in Summit, New Jersey. Matthew Williams is also affiliated with Morristown Medical Center. Dmand AI links Matthew Williams to 1 more hospital.
What medical group is Matthew David Williams part of?
Matthew Williams is linked to Atlantic Medical Group.
Does Matthew David Williams accept Medicare?
Yes. CMS lists Matthew Williams as accepting Medicare assignment.
How many Medicare patients does Matthew David Williams see?
CMS counts 125 Medicare patients who saw Matthew Williams in 2024, with an average age of 76.
Has Matthew David Williams received payments from drug or device companies?
CMS Open Payments shows $164 in general payments to Matthew Williams from 7 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Matthew David Williams been practicing?
Matthew Williams graduated from medical school in 2017, 9 years ago.
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