Dr. Rachael Yuson Williams, MD
- Medicare services, 2024
- 959
- Medicare patients, 2024
- 106
- Part D claims, 2024
- 179
- Publications
- 7
- Hospital affiliations
- 3
- Practice address
- 147 North Brent Street, Ventura, CA 93003
- Practice phone
- Call (805) 652-5011
- 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
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.
Dr. Rachael Yuson Williams is a general surgeon in Ventura, California
Dr. Williams practices at Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare.
Dr. Williams' NPI, 1386887362, was assigned on April 7, 2009. Dr. Williams graduated from Boston University School Of Medicine in 2009. Dr. Williams holds California license 159969.
- NPI
- 1386887362NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082832555
- NPI enumeration date
- April 7, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 652-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rachael Yuson Williams practices at Community Memorial Hospital - Ventura in Ventura, California
Dr. Williams' primary practice is Community Memorial Hospital - Ventura, at 147 North Brent Street, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-5011.
- Community Memorial Hospital - Ventura147 North Brent Street, Ventura, CA 93003 · Ventura CountyPhone(805) 652-5011
Source: Dmand AI Affiliation Data
Dr. Rachael Yuson Williams is affiliated with 8 sites of care and 2 medical groups
Dr. Williams' primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. Dr. Williams is also affiliated with Adventist Health Bakersfield. The medical group on file is Grossman Plastic Surgery. Dmand AI also links Dr. Williams to 1 more hospital, 2 group practices and clinics, 2 home health agencies, 1 physician office 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. Rachael Yuson Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Memorial Hospital - Ventura | Available with a free account |
| +7 more sites and 1 medical group | 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 Community Memorial Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Rachael Yuson Williams is one of 2,926 general surgeons in California
Surgery is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Williams is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Williams' licenses on file in 4 states: California, Delaware, Georgia and Virginia.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Delaware license
- Georgia license
- Virginia license
General surgeons near Dr. Williams
Counts of general surgeons 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. Rachael Yuson Williams billed Medicare for 959 services in 2024
CMS data shows 959 Medicare services from Dr. Williams across 10 procedure codes in 2024, for 106 Medicare patients. Medicare paid $47,848 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: 3952024: 57145%
- Surgery
- 2023: 472024: 260453%
- Tests and treatments
- 2023: 02024: 128
Dr. Williams compared with the California median for general surgeons, 2024
- Dr. Williams
- California median
- Medicare services
- 959vs 1665.8 times
- Medicare patients
- 106vs 12112% below
- Part D claims
- 89vs 342.6 times
Medians across 2,606 general surgeons in California 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 general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rachael Yuson Williams treated 106 Medicare patients in 2024, average age 71
CMS counts 106 Medicare patients who saw Dr. Williams in 2024. The largest group is 75 to 84, with 34 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 3.32, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 66, with 42% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women6057%
- Men4643%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes60%
- Ischemic heart disease48%
- Chronic kidney disease38%
- Anxiety36%
- Heart failure36%
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 66
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rachael Yuson Williams wrote 179 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 179 Medicare Part D claims for 53 patients. 83% of them were for generic drugs. CMS names the drug for 89 of them, across 5 drugs with 11 or more claims each, at $403 in total drug cost. In 2023, CMS named 54 claims across 4 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic148 claims83%
- Brand-name31 claims17%
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
- Opioids7%13 of 179 claims
- Antibiotics43%77 of 179 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: 542024: 8965%
Drugs named by CMS: 5 in 2024, 4 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. Rachael Yuson Williams ranks in the 97th percentile for removal of tissue in Medicare
Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 491 procedures of removal of tissue by Dr. Williams, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Williams ranks in Medicare procedure volume
- Removal of tissue
- 97th percentile491 procedures
- Removal of skin lesions
- 81st percentile258 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (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.
Dr. Rachael Yuson Williams has 7 publications on record
Dmand AI links 7 papers to Dr. Williams, published from 2016 to 2020. The most frequent topics are Burns, Craniocerebral Trauma and Neck Injuries. Dr. Williams has published most often in Am J Surg. Dr. Williams' most frequent co-authors are Juvonda S. Hodge, MD and Jeromy Ryan Patterson, MD.
Dr. Williams' papers by year, 2016 to 2020
Topics Dr. Williams writes about most
- Burns
- Craniocerebral Trauma
- Neck Injuries
Dr. Williams' most frequent co-authors
Recent publications by Dr. Williams
J Oral Maxillofac Surg
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 general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Rachael Yuson Williams received $17,317 in industry payments from 2016 to 2025
CMS Open Payments shows 154 general payments to Dr. Williams from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 31% of the total. KCI USA, Inc. paid the most, $7,142.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
- Food and beverage$5,36531%
- Consulting fees$5,03829%
- Travel and lodging$4,76528%
- Speaker and faculty fees$2,15012%
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. Rachael Yuson Williams graduated from Boston University School Of Medicine
Dr. Williams graduated from Boston University School Of Medicine in 2009.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
Source: Dmand AI Professional Profile Data
Dr. Rachael Yuson Williams accepts plans from 8 insurance carriers
Dr. Williams is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- DE State Medicaid
- GA State Medicaid
Plan types Dr. Williams accepts, by number of carriers
- Medicare6
- PPO5
- Medicaid2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Rachael Yuson 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)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 |
| 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. Rachael Yuson 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. Rachael Yuson Williams' NPI number?
Dr. Rachael Yuson Williams' NPI number is 1386887362. It was assigned on April 7, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Rachael Yuson Williams?
Dr. Rachael Yuson Williams is a general surgeon in Ventura, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Rachael Yuson Williams practice?
Dr. Williams practices at 147 North Brent Street, Ventura, CA 93003. Dr. Williams' primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. Dmand AI also links Dr. Williams to 1 hospital, 2 group practices and clinics, 2 home health agencies, 1 physician office and 1 medical group.
What is Dr. Rachael Yuson Williams' office phone number?
The practice phone on file for Dr. Williams is (805) 652-5011.
What is Dr. Rachael Yuson Williams' medical license number?
Dr. Williams holds California license 159969, one of the licenses on file in 4 states.
Which states has Dr. Rachael Yuson Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (2018 to 2026), Delaware (2022 to 2025), Georgia (2014 to 2020) and Virginia (2009 to 2014).
Which hospitals is Dr. Rachael Yuson Williams affiliated with?
Dr. Williams practices at Community Memorial Hospital - Ventura in Ventura, California. Dr. Williams is also affiliated with Adventist Health Bakersfield. Dmand AI links Dr. Williams to 1 more hospital.
What medical group is Dr. Rachael Yuson Williams part of?
Dr. Williams is linked to Grossman Plastic Surgery. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Rachael Yuson Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 959 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. Rachael Yuson Williams see?
CMS counts 106 Medicare patients who saw Dr. Williams in 2024, with an average age of 71.
Show 9 more questionsShow fewer questions
Is Dr. Rachael Yuson Williams board certified?
Yes. Dr. Williams is board certified in surgery by the American Board of Surgery.
What services does Dr. Rachael Yuson Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (17250) and special service (99183).
Where did Dr. Rachael Yuson Williams go to medical school?
Dr. Williams graduated from Boston University School Of Medicine in 2009.
What drugs does Dr. Rachael Yuson Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Doxycycline Hyclate, Levofloxacin and Clindamycin HCl.
Has Dr. Rachael Yuson Williams received payments from drug or device companies?
CMS Open Payments shows $17,317 in general payments to Dr. Williams from 14 companies from 2016 to 2025. The largest total came from KCI USA, Inc.
How long has Dr. Rachael Yuson Williams been practicing?
Dr. Williams graduated from medical school in 2009, 17 years ago.
Does Dr. Rachael Yuson Williams do research?
Dmand AI links 7 publications to Dr. Williams, published from 2016 to 2020.
Who does Dr. Rachael Yuson Williams publish with?
Dr. Williams' most frequent co-authors are Juvonda S. Hodge, MD (1 shared paper) and Jeromy Ryan Patterson, MD (1 shared paper).
What insurance does Dr. Rachael Yuson Williams accept?
Dr. Williams is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
Selling to surgery practices?
See general surgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card