J Investig Med High Impact Case Rep
Dr. Neil Patrick Williams, MD
- Medicare services, 2024
- 215
- Medicare patients, 2024
- 215
- Part D claims, 2024
- 94
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 7300 Medical Center Dr, West Hills, CA 91307
- Practice phone
- Call (818) 676-4000
- 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
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. Neil Patrick Williams is an internist in West Hills, California
Dr. Williams practices at UCLA West Valley Medical Center in West Hills, California, part of University of California Health.
Dr. Williams' NPI, 1174141253, was assigned on July 6, 2020. Dr. Williams graduated from St. George's University School of Medicine in 2020. Dr. Williams holds California license D9394722.
- NPI
- 1174141253NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668815150
- NPI enumeration date
- July 6, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 676-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Neil Patrick Williams practices at UCLA West Valley Medical Center in West Hills, California
Dr. Williams' primary practice is UCLA West Valley Medical Center, at 7300 Medical Center Dr, West Hills, CA 91307 in Los Angeles County. The practice phone is (818) 676-4000.
- UCLA West Valley Medical Center7300 Medical Center Dr, West Hills, CA 91307 · Los Angeles CountyPhone(818) 676-4000
Source: Dmand AI Affiliation Data
Dr. Neil Patrick Williams is affiliated with 4 sites of care and 4 medical groups
Dr. Williams' primary practice is UCLA West Valley Medical Center in West Hills, California, part of University of California Health. Dr. Williams is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links Dr. Williams to 2 more hospitals and 3 medical groups, 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. Neil Patrick Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCLA West Valley Medical Center | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Neil Patrick Williams is one of 16,751 internists in California
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 2 states: California and New Jersey.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- New Jersey license
Clinical focus
Dmand AI lists loss of balance 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. Neil Patrick Williams billed Medicare for 215 services in 2024
CMS data shows 215 Medicare services from Dr. Williams across 2 procedure codes in 2024, for 215 Medicare patients. Medicare paid $27,335 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams compared with the California median for internists, 2024
- Dr. Williams
- California median
- Medicare services
- 215vs 36140% below
- Medicare patients
- 215vs 15142% above
Medians across 15,815 internists 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 internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Neil Patrick Williams treated 215 Medicare patients in 2024, average age 75
CMS counts 215 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 67 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 2.82, 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 62, with 50% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women12458%
- Men9142%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes65%
- Chronic kidney disease52%
- Arthritis51%
- Ischemic heart disease51%
- Heart failure48%
- Mood disorders43%
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 62
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Neil Patrick Williams wrote 94 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 94 Medicare Part D claims. 76% of them were for generic drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic71 claims76%
- Brand-name23 claims24%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Neil Patrick Williams takes part in Medicare
Dr. 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)
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Dr. Neil Patrick Williams has 1 publication on record
Dmand AI links 1 paper to Dr. Williams. Dr. Williams' most frequent co-authors are William Farrer, MD and Fisayo Kayode-Ajala, MD.
Dr. Williams' most frequent co-authors
Recent publications by Dr. Williams
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. Neil Patrick Williams received $33 in industry payments from 2022 to 2024
CMS Open Payments shows 2 general payments to Dr. Williams from 2 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $18.
General payments to Dr. Williams by program year, 2022 to 2024
Companies that paid Dr. Williams the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Neil Patrick Williams graduated from St. George's University School of Medicine
Dr. Williams graduated from St. George's University School of Medicine in 2020.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Neil Patrick Williams accepts plans from 4 insurance carriers
Dr. Williams is in network with 4 carriers, including Cigna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Cigna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. Williams accepts, by number of carriers
- Medicare4
- PPO3
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Neil Patrick 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 (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. Neil Patrick 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. Neil Patrick Williams' NPI number?
Dr. Neil Patrick Williams' NPI number is 1174141253. It was assigned on July 6, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Neil Patrick Williams?
Dr. Neil Patrick Williams is an internist in West Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Neil Patrick Williams practice?
Dr. Williams practices at 7300 Medical Center Dr, West Hills, CA 91307. Dr. Williams' primary practice is UCLA West Valley Medical Center in West Hills, California, part of University of California Health. Dmand AI also links Dr. Williams to 2 hospitals and 3 medical groups.
What is Dr. Neil Patrick Williams' office phone number?
The practice phone on file for Dr. Williams is (818) 676-4000.
What is Dr. Neil Patrick Williams' medical license number?
Dr. Williams holds California license D9394722, one of the licenses on file in 2 states.
Which states has Dr. Neil Patrick Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (2024 to 2026) and New Jersey (2023 to 2025).
Which hospitals is Dr. Neil Patrick Williams affiliated with?
Dr. Williams practices at UCLA West Valley Medical Center in West Hills, California. Dr. Williams is also affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Williams to 2 more hospitals.
What medical group is Dr. Neil Patrick Williams part of?
Dr. Williams is linked to UCLA Medical Group. Dmand AI links Dr. Williams to 3 more medical groups.
Does Dr. Neil Patrick Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 215 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. Neil Patrick Williams see?
CMS counts 215 Medicare patients who saw Dr. Williams in 2024, with an average age of 75.
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Is Dr. Neil Patrick Williams board certified?
Yes. Dr. Williams is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Neil Patrick Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were hospital inpatient care (99223) and hospital inpatient care (99222).
Where did Dr. Neil Patrick Williams go to medical school?
Dr. Williams graduated from St. George's University School of Medicine in 2020.
Has Dr. Neil Patrick Williams received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. Williams from 2 companies from 2022 to 2024. The largest total came from Pfizer Inc.
How long has Dr. Neil Patrick Williams been practicing?
Dr. Williams graduated from medical school in 2020, 6 years ago.
Does Dr. Neil Patrick Williams do research?
Dmand AI links 1 publication to Dr. Williams.
Who does Dr. Neil Patrick Williams publish with?
Dr. Williams' most frequent co-authors are William Farrer, MD (1 shared paper) and Fisayo Kayode-Ajala, MD (1 shared paper).
What insurance does Dr. Neil Patrick Williams accept?
Dr. Williams is in network with 4 carriers, including Cigna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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