Katherine Williams, PA-C
- Medicare patients, 2024
- 116
- Part D claims, 2024
- 658
- Hospital affiliations
- 1
- Industry payments
- $112
- Medical group
- 1
- Practice address
- 1 Boston Medical Center Place, Boston, MA 02118
- Practice phone
- Call (617) 638-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Katherine 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.
Katherine Williams is a physician assistant in Boston, Massachusetts
Katherine Williams practices at Boston Medical Center in Boston, Massachusetts, part of Boston Medical Center Health System.
Katherine Williams' NPI, 1922795699, was assigned on April 21, 2023. Katherine Williams graduated from University of Pittsburgh School of Medicine in 2022. Katherine Williams holds Massachusetts license PA9258.
- NPI
- 1922795699NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587021803
- NPI enumeration date
- April 21, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 638-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Katherine Williams practices at Boston Medical Center in Boston, Massachusetts
Katherine Williams' primary practice is Boston Medical Center, at 1 Boston Medical Center Place, Boston, MA 02118 in Suffolk County. The practice phone is (617) 638-8000.
- Boston Medical Center1 Boston Medical Center Place, Boston, MA 02118 · Suffolk CountyPhone(617) 638-8000
Source: Dmand AI Affiliation Data
Katherine Williams is affiliated with 1 site of care and 1 medical group
Katherine Williams' primary practice is Boston Medical Center in Boston, Massachusetts, part of Boston Medical Center Health System. The medical group on file is ColumbiaDoctors.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Katherine Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boston Medical Center | 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 Boston Medical Center Health System and 6.2K+ hospitals, with verified contacts in the same login.
Katherine Williams is one of 3,922 physician assistants in Massachusetts
Physician assistant is Katherine Williams' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Katherine Williams' licenses on file in 2 states: Massachusetts and New York.
Specialties and state licenses
- Physician assistant, MassachusettsPrimary
- New York license
Physician assistants near Katherine 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
Katherine Williams treated 116 Medicare patients in 2024, average age 74
CMS counts 116 Medicare patients who saw Katherine Williams in 2024. The largest group is 65 to 74, with 54 patients. 68% of them have high blood pressure, and 64% have high cholesterol. 57% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Katherine Williams' median patient age at 70, with 22% women.
Katherine Williams' Medicare patients by age, 2024
Katherine Williams' Medicare patients by sex, 2024
- Women1614%
- Men10086%
Chronic conditions among Katherine Williams' Medicare patients, 2024
- High blood pressure68%
- High cholesterol64%
- Diabetes40%
- Chronic kidney disease29%
- Arthritis28%
- Ischemic heart disease23%
- Cancer20%
- Atrial fibrillation18%
Share of Medicare patients with each condition. A patient can have several.
Katherine Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women22%
- Men78%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Katherine Williams wrote 658 Medicare Part D claims in 2024
In 2024, Katherine Williams wrote 658 Medicare Part D claims for 178 patients. 79% of them were for generic drugs.
Katherine Williams' Part D claims by kind of drug, 2024
- Generic522 claims79%
- Brand-name136 claims21%
Drug classes CMS tracks in Katherine Williams' Part D claims, 2024
- Antibiotics3%22 of 658 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 Katherine Williams takes part in Medicare
Katherine 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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Katherine Williams received $112 in industry payments in 2025
CMS Open Payments shows 1 general payment to Katherine Williams from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $112.
Companies that paid Katherine 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
Katherine Williams graduated from University of Pittsburgh School of Medicine
Katherine Williams graduated from University of Pittsburgh School of Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Katherine 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) |
| 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 Katherine 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 Katherine Williams' NPI number?
Katherine Williams' NPI number is 1922795699. It was assigned on April 21, 2023, and it is active in the NPI Registry.
What does Katherine Williams specialize in?
Katherine Williams is a physician assistant in Boston, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Katherine Williams practice?
Katherine Williams practices at 1 Boston Medical Center Place, Boston, MA 02118. Katherine Williams' primary practice is Boston Medical Center in Boston, Massachusetts, part of Boston Medical Center Health System.
What is Katherine Williams' office phone number?
The practice phone on file for Katherine Williams is (617) 638-8000.
What is Katherine Williams' medical license number?
Katherine Williams holds Massachusetts license PA9258, one of the licenses on file in 2 states.
Which states has Katherine Williams been licensed in?
Dmand AI has state licenses on file for Katherine Williams in Massachusetts and New York.
Which hospitals is Katherine Williams affiliated with?
Katherine Williams practices at Boston Medical Center in Boston, Massachusetts.
What medical group is Katherine Williams part of?
Katherine Williams is linked to ColumbiaDoctors.
Does Katherine Williams accept Medicare?
Yes. CMS lists Katherine Williams as accepting Medicare assignment.
How many Medicare patients does Katherine Williams see?
CMS counts 116 Medicare patients who saw Katherine Williams in 2024, with an average age of 74.
Show 3 more questionsShow fewer questions
Where did Katherine Williams go to medical school?
Katherine Williams graduated from University of Pittsburgh School of Medicine in 2022.
Has Katherine Williams received payments from drug or device companies?
CMS Open Payments shows $112 in general payments to Katherine Williams from 1 company from 2025 to 2025. The largest total came from Boston Scientific Corporation.
How long has Katherine Williams been practicing?
Katherine Williams graduated from medical school in 2022, 4 years ago.
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