Dr. Katherine Ann Williams, MD
- Medicare services, 2024
- 501
- Medicare patients, 2024
- 186
- Part D claims, 2024
- 4,853
- Hospital affiliations
- 1
- Industry payments
- $263
- Practice address
- 888 S King Street, Honolulu, HI 96813
- Practice phone
- Call (808) 522-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williams' professional email, personal email and mobile number
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Dr. Katherine Ann Williams is an internist in Honolulu, Hawaii
Dr. Williams practices at Straub Benioff Medical Center in Honolulu, Hawaii, part of Hawaiʻi Pacific Health.
Dr. Williams' NPI, 1467527556, was assigned on November 22, 2006. Dr. Williams graduated from University of South Alabama College of Medicine in 1982. Dr. Williams holds Hawaii license MD-5257.
- NPI
- 1467527556NPI Registry (opens in a new tab)
- NPI enumeration date
- November 22, 2006
- NPI status
- Active
- Practice phone
- (808) 522-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Katherine Ann Williams practices at Straub Benioff Medical Center in Honolulu, Hawaii
Dr. Williams' primary practice is Straub Benioff Medical Center, at 888 S King Street, Honolulu, HI 96813 in Honolulu County. The practice phone is (808) 522-4000.
- Straub Benioff Medical Center888 S King Street, Honolulu, HI 96813 · Honolulu CountyPhone(808) 522-4000
Source: Dmand AI Affiliation Data
Dr. Katherine Ann Williams is affiliated with 1 site of care and 1 medical group
Dr. Williams' primary practice is Straub Benioff Medical Center in Honolulu, Hawaii, part of Hawaiʻi Pacific Health. The medical group on file is Straub Benioff Medical Center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Ann Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Straub Benioff Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Ann Williams is one of 771 internists in Hawaii
Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williams is licensed in Hawaii.
Specialties and state licenses
- Internal medicine, HawaiiPrimary
Internists near Dr. Williams
Counts of internists 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. Katherine Ann Williams billed Medicare for 501 services in 2024
CMS data shows 501 Medicare services from Dr. Williams across 3 procedure codes in 2024, all of them office visits, for 186 Medicare patients. Medicare paid $21,523 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5892024: 50115%
Dr. Williams compared with the Hawaii median for internists, 2024
- Dr. Williams
- Hawaii median
- Medicare services
- 501vs 34246% above
- Medicare patients
- 186vs 12845% above
- Part D claims
- 4,131vs 6706.2 times
Medians across 699 internists in Hawaii 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Ann Williams treated 186 Medicare patients in 2024, average age 79
CMS counts 186 Medicare patients who saw Dr. Williams in 2024. The largest group is 75 to 84, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 76, with 65% women.
Dr. Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Williams' Medicare patients by sex, 2024
- Women14075%
- Men4625%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Osteoporosis37%
- Chronic kidney disease31%
- Diabetes27%
- Arthritis25%
- Cancer18%
- Atrial fibrillation13%
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 76
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Ann Williams wrote 4,853 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 4,853 Medicare Part D claims for 517 patients. 89% of them were for generic drugs. CMS names the drug for 4,131 of them, across 66 drugs with 11 or more claims each, at $400,886 in total drug cost. In 2023, CMS named 4,746 claims across 88 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic4,335 claims89%
- Brand-name482 claims10%
- Other36 claims1%
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
- Opioids1%27 of 4,853 claims
- Antibiotics2%86 of 4,853 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: 4,7462024: 4,13113%
Drugs named by CMS: 66 in 2024, 88 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
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Dr. Katherine Ann Williams received $263 in industry payments from 2018 to 2025
CMS Open Payments shows 16 general payments to Dr. Williams from 2 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $251.
General payments to Dr. Williams by program year, 2018 to 2025
Companies that paid Dr. Williams the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Ann Williams graduated from University of South Alabama College of Medicine
Dr. Williams graduated from University of South Alabama College of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Ann 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) |
| 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. Katherine Ann 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. Katherine Ann Williams' NPI number?
Dr. Katherine Ann Williams' NPI number is 1467527556. It was assigned on November 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Ann Williams?
Dr. Katherine Ann Williams is an internist in Honolulu, Hawaii. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Katherine Ann Williams practice?
Dr. Williams practices at 888 S King Street, Honolulu, HI 96813. Dr. Williams' primary practice is Straub Benioff Medical Center in Honolulu, Hawaii, part of Hawaiʻi Pacific Health.
What is Dr. Katherine Ann Williams' office phone number?
The practice phone on file for Dr. Williams is (808) 522-4000.
What is Dr. Katherine Ann Williams' medical license number?
Dr. Williams holds Hawaii license MD-5257.
Which hospitals is Dr. Katherine Ann Williams affiliated with?
Dr. Williams practices at Straub Benioff Medical Center in Honolulu, Hawaii.
What medical group is Dr. Katherine Ann Williams part of?
Dr. Williams is linked to Straub Benioff Medical Center.
Does Dr. Katherine Ann Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 501 services in 2024.
How many Medicare patients does Dr. Katherine Ann Williams see?
CMS counts 186 Medicare patients who saw Dr. Williams in 2024, with an average age of 79.
What services does Dr. Katherine Ann Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Show 4 more questionsShow fewer questions
Where did Dr. Katherine Ann Williams go to medical school?
Dr. Williams graduated from University of South Alabama College of Medicine in 1982.
What drugs does Dr. Katherine Ann Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Katherine Ann Williams received payments from drug or device companies?
CMS Open Payments shows $263 in general payments to Dr. Williams from 2 companies from 2018 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Katherine Ann Williams been practicing?
Dr. Williams graduated from medical school in 1982, 44 years ago.
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