Dr. David McCann Williams, MD
- Medicare services, 2024
- 115
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 112
- Hospital affiliations
- 4
- Industry payments
- $28,568
- Practice address
- 9898 Genesee Avenue, La Jolla, CA 92037
- Practice phone
- Call (414) 975-3807
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Scripps Clinic la Jolla ASC
Surgery Center - Medicare-Certified · La Jolla, California
Find Dr. Williams' professional email, personal email and mobile number
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Dr. David McCann Williams is a cardiothoracic surgeon in La Jolla, California
Dr. Williams practices at Scripps Clinic la Jolla ASC in La Jolla, California.
Dr. Williams' NPI, 1215347851, was assigned on May 5, 2014. Dr. Williams graduated from West Virginia University School Of Medicine in 2014. Dr. Williams holds New York license 301498.
- NPI
- 1215347851NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486670643
- NPI enumeration date
- May 5, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 975-3807
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David McCann Williams practices at Scripps Clinic la Jolla ASC in La Jolla, California
Dr. Williams' primary practice is Scripps Clinic la Jolla ASC, at 9898 Genesee Avenue, La Jolla, CA 92037. The practice phone is (414) 975-3807.
- Scripps Clinic la Jolla ASC9898 Genesee Avenue, La Jolla, CA 92037Phone(414) 975-3807
Source: Dmand AI Affiliation Data
Dr. David McCann Williams is affiliated with 6 sites of care and 1 medical group
Dr. Williams' primary practice is Scripps Clinic la Jolla ASC in La Jolla, California. Dr. Williams is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Williams to 3 more hospitals and 1 home health agency, each named with a free account. Dr. Williams' employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David McCann Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Clinic la Jolla ASC | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David McCann Williams is one of 568 cardiothoracic surgeons in California
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Williams is licensed in New York.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), New YorkPrimary
Cardiothoracic surgeons near Dr. Williams
Counts of cardiothoracic 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. David McCann Williams billed Medicare for 115 services in 2024
CMS data shows 115 Medicare services from Dr. Williams across 4 procedure codes in 2024, for 109 Medicare patients. Medicare paid $31,784 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: 592024: 6917%
- Surgery
- 2023: 612024: 4625%
Dr. Williams compared with the California median for cardiothoracic surgeons, 2024
- Dr. Williams
- California median
- Medicare services
- 115vs 114Close to median
- Medicare patients
- 109vs 9515% above
- Part D claims
- 72vs 193.8 times
Medians across 453 cardiothoracic 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other cardiothoracic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David McCann Williams treated 109 Medicare patients in 2024, average age 76
CMS counts 109 Medicare patients who saw Dr. Williams in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.77, 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 70, with 31% 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
- Women4339%
- Men6661%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Heart failure69%
- Atrial fibrillation47%
- Arthritis39%
- Chronic kidney disease39%
- Diabetes39%
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 70
Patient panel by sex, all payers
- Women31%
- Men68%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David McCann Williams wrote 112 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 112 Medicare Part D claims for 34 patients. 84% of them were for generic drugs. CMS names the drug for 72 of them, across 4 drugs with 11 or more claims each, at $8,376 in total drug cost. In 2023, CMS named 38 claims across 2 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic94 claims84%
- Brand-name18 claims16%
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: 382024: 7289%
Drugs named by CMS: 4 in 2024, 2 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. David McCann Williams ranks in the 73rd percentile for coronary artery bypass graft (cabg) in Medicare
Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 23 procedures of coronary artery bypass graft (cabg) by Dr. Williams, more than 73% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Williams ranks in Medicare procedure volume
- Coronary artery bypass graft (CABG)
- 73rd percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David McCann Williams received $28,568 in industry payments from 2020 to 2025
CMS Open Payments shows 204 general payments to Dr. Williams from 9 drug and device companies from 2020 to 2025. Grants make up the largest share, 77% of the total. Medtronic, Inc. paid the most, $22,814.
General payments to Dr. Williams by program year, 2020 to 2025
General payments to Dr. Williams by kind, 2020 to 2025
- Grants$22,00077%
- Food and beverage$6,05921%
- Travel and lodging$5092%
Companies that paid Dr. Williams the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David McCann Williams graduated from West Virginia University School Of Medicine
Dr. Williams graduated from West Virginia University School Of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David McCann 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) |
| 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. David McCann 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. David McCann Williams' NPI number?
Dr. David McCann Williams' NPI number is 1215347851. It was assigned on May 5, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. David McCann Williams?
Dr. David McCann Williams is a cardiothoracic surgeon in La Jolla, California. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. David McCann Williams practice?
Dr. Williams practices at 9898 Genesee Avenue, La Jolla, CA 92037. Dr. Williams' primary practice is Scripps Clinic la Jolla ASC in La Jolla, California. Dmand AI also links Dr. Williams to 3 hospitals and 1 home health agency.
What is Dr. David McCann Williams' office phone number?
The practice phone on file for Dr. Williams is (414) 975-3807.
What is Dr. David McCann Williams' medical license number?
Dr. Williams holds New York license 301498.
Which hospitals is Dr. David McCann Williams affiliated with?
Dr. Williams is affiliated with Scripps Memorial Hospital La Jolla. Dmand AI links Dr. Williams to 3 more hospitals.
What medical group is Dr. David McCann Williams part of?
Dr. Williams is linked to Scripps Clinic Medical Group.
Does Dr. David McCann Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 115 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. David McCann Williams see?
CMS counts 109 Medicare patients who saw Dr. Williams in 2024, with an average age of 76.
What services does Dr. David McCann Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were surgery: heart and blood vessels (33361), office visit, new patient (99205) and hospital inpatient care (99221).
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Where did Dr. David McCann Williams go to medical school?
Dr. Williams graduated from West Virginia University School Of Medicine in 2014.
What drugs does Dr. David McCann Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Metoprolol Tartrate, Atorvastatin Calcium and Eliquis.
Has Dr. David McCann Williams received payments from drug or device companies?
CMS Open Payments shows $28,568 in general payments to Dr. Williams from 9 companies from 2020 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. David McCann Williams been practicing?
Dr. Williams graduated from medical school in 2014, 12 years ago.
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