Dr. Frederick K. Williams II, MD
- Medicare services, 2024
- 94
- Medicare patients, 2024
- 92
- Part D claims, 2024
- 241
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 4725 N Federal Hwy, Fort Lauderdale, FL 33308
- Practice phone
- Call (954) 771-8000
- 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. Frederick K. Williams II is an internist in Fort Lauderdale, Florida
Dr. Williams practices at Holy Cross Health in Fort Lauderdale, Florida, part of Trinity Health.
Dr. Williams' NPI, 1457310260, was assigned on March 21, 2006. Dr. Williams graduated from USF Health Morsani College of Medicine in 1989. Dr. Williams holds Florida license ME103240.
- NPI
- 1457310260NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355238643
- NPI enumeration date
- March 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (954) 771-8000
- 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. Frederick K. Williams II practices at Holy Cross Health in Fort Lauderdale, Florida
Dr. Williams' primary practice is Holy Cross Health, at 4725 N Federal Hwy, Fort Lauderdale, FL 33308 in Broward County. The practice phone is (954) 771-8000.
- Holy Cross Health4725 N Federal Hwy, Fort Lauderdale, FL 33308 · Broward CountyPhone(954) 771-8000
Source: Dmand AI Affiliation Data
Dr. Frederick K. Williams II is affiliated with 2 sites of care and 2 medical groups
Dr. Williams' primary practice is Holy Cross Health in Fort Lauderdale, Florida, part of Trinity Health. The medical group on file is Holy Cross Medical Group. Dmand AI also links Dr. Williams to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Frederick K. Williams II's 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 |
|---|---|
| Holy Cross Health | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Frederick K. Williams II is one of 9,009 internists in Florida
Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williams is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Williams' licenses on file in 3 states: Florida, Maryland and District of Columbia.
Specialties and state licenses
- Internal medicine, FloridaPrimary
- Maryland license
- District of Columbia license
Clinical focus
Dmand AI lists acute sinusitis, acute stomach ulcer, alcohol use disorders, asthma, atrial fibrillation and flutter, chronic anemia, chronic hypertension and chronic obstructive pulmonary disease (COPD) among the conditions Dr. Williams treats.
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. Frederick K. Williams II billed Medicare for 94 services in 2024
CMS data shows 94 Medicare services from Dr. Williams across 4 procedure codes in 2024, for 92 Medicare patients. Medicare paid $6,210 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1282024: 8236%
- Other services
- 2023: 02024: 12
Where Dr. Williams' Medicare services took place, 2024
- In an office7277%
- In a facility2223%
Dr. Williams compared with the Florida median for internists, 2024
- Dr. Williams
- Florida median
- Medicare services
- 94vs 55583% below
- Medicare patients
- 92vs 21557% below
- Part D claims
- 63vs 46686% below
Medians across 8,488 internists in Florida 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.
Need commercial claims for Dr. Williams?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other internists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Frederick K. Williams II treated 92 Medicare patients in 2024, average age 75
CMS counts 92 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 69, with 43% 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
- Women2527%
- Men6773%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease42%
- Diabetes30%
- Anxiety29%
- Cancer27%
- COPD25%
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 69
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Frederick K. Williams II wrote 241 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 241 Medicare Part D claims for 75 patients. 88% of them were for generic drugs. CMS names the drug for 63 of them, across 5 drugs with 11 or more claims each, at $592 in total drug cost. In 2023, CMS named 120 claims across 8 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic211 claims88%
- Brand-name30 claims12%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1202024: 6348%
Drugs named by CMS: 5 in 2024, 8 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. Frederick K. Williams II offers telehealth to Medicare patients
Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Williams as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Frederick K. Williams II has 3 publications on record
Dmand AI links 3 papers to Dr. Williams in 2015. 2015 was the busiest year, with 2. Dr. Williams has published most often in Am J Case Rep. Dr. Williams' most frequent co-authors are Thomas Abraham, MD, Scott M. Alter, MD and William Benda, MD.
Dr. Williams' most frequent co-authors
Recent publications by Dr. Williams
Am J Case Rep
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 internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Frederick K. Williams II received $24 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Williams from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $24.
Companies that paid Dr. Williams the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Frederick K. Williams II graduated from USF Health Morsani College of Medicine
Dr. Williams graduated from USF Health Morsani College of Medicine in 1989.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Frederick K. Williams II accepts plans from 11 insurance carriers
Dr. Williams is in network with 11 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Molina
- Regence Health Plans
- United Healthcare
- Alliant Health Plans
- +3 more carriersWith a free account
Plan types Dr. Williams accepts, by number of carriers
- Medicare7
- HMO6
- PPO6
- POS5
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Frederick K. Williams II'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) |
| 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Frederick K. Williams II
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. Frederick K. Williams II's NPI number?
Dr. Frederick K. Williams II's NPI number is 1457310260. It was assigned on March 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Frederick K. Williams II?
Dr. Frederick K. Williams II is an internist in Fort Lauderdale, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Frederick K. Williams II practice?
Dr. Williams practices at 4725 N Federal Hwy, Fort Lauderdale, FL 33308. Dr. Williams' primary practice is Holy Cross Health in Fort Lauderdale, Florida, part of Trinity Health. Dmand AI also links Dr. Williams to 1 group practice or clinic and 1 medical group.
What is Dr. Frederick K. Williams II's office phone number?
The practice phone on file for Dr. Williams is (954) 771-8000.
What is Dr. Frederick K. Williams II's medical license number?
Dr. Williams holds Florida license ME103240, one of the licenses on file in 3 states.
Which states has Dr. Frederick K. Williams II been licensed in?
Dmand AI has state licenses on file for Dr. Williams in Florida (2008 to 2027), Maryland (2003 to 2009) and District of Columbia (1992 to 2004).
Which hospitals is Dr. Frederick K. Williams II affiliated with?
Dr. Williams practices at Holy Cross Health in Fort Lauderdale, Florida.
What medical group is Dr. Frederick K. Williams II part of?
Dr. Williams is linked to Holy Cross Medical Group. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Frederick K. Williams II accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 94 services in 2024, and Dr. Williams accepts Medicare assignment.
Does Dr. Frederick K. Williams II offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Williams as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Frederick K. Williams II see?
CMS counts 92 Medicare patients who saw Dr. Williams in 2024, with an average age of 75.
Is Dr. Frederick K. Williams II board certified?
Yes. Dr. Williams is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Frederick K. Williams II bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and hospital inpatient care (99232).
Where did Dr. Frederick K. Williams II go to medical school?
Dr. Williams graduated from USF Health Morsani College of Medicine in 1989.
What drugs does Dr. Frederick K. Williams II prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Frederick K. Williams II received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Williams from 1 company from 2023 to 2023. The largest total came from Hologic Inc.
How long has Dr. Frederick K. Williams II been practicing?
Dr. Williams graduated from medical school in 1989, 37 years ago.
Does Dr. Frederick K. Williams II do research?
Dmand AI links 3 publications to Dr. Williams.
Who does Dr. Frederick K. Williams II publish with?
Dr. Williams' most frequent co-authors are Thomas Abraham, MD (1 shared paper), Scott M. Alter, MD (1 shared paper) and William Benda, MD (1 shared paper).
What insurance does Dr. Frederick K. Williams II accept?
Dr. Williams is in network with 11 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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