Ali S. Williams, PA-C
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 2,084
- Industry payments
- $406
- Medical group
- 1
- Year NPI issued
- 2011
- Practice address
- 26520 Cactus Ave, Moreno Valley, CA 92555
- Practice phone
- Call (951) 486-4458
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Riverside University Medical Center
Moreno Valley, California
Find Ali 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.
Ali S. Williams is a physician assistant in Moreno Valley, California
Ali Williams practices at Riverside University Medical Center in Moreno Valley, California.
Ali Williams' NPI, 1902182090, was assigned on November 2, 2011.
- NPI
- 1902182090NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476792292
- NPI enumeration date
- November 2, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 486-4458
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Ali S. Williams practices at Riverside University Medical Center in Moreno Valley, California
Ali Williams' primary practice is Riverside University Medical Center, at 26520 Cactus Ave, Moreno Valley, CA 92555 in Riverside County. The practice phone is (951) 486-4458.
- Riverside University Medical Center26520 Cactus Ave, Moreno Valley, CA 92555 · Riverside CountyPhone(951) 486-4458
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ali S. Williams is affiliated with 1 site of care and 1 medical group
Ali Williams' primary practice is Riverside University Medical Center in Moreno Valley, California. The medical group on file is Indio Community Health Center.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Ali S. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ali Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside University Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Ali S. Williams is one of 11,482 physician assistants in California
Physician assistant is Ali Williams' primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Clinical focus
Dmand AI lists bipolar disorder, depression and schizophrenia among the conditions Ali Williams treats.
Physician assistants near Ali Williams
Counts of physician assistants 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
Ali S. Williams treated 11 Medicare patients in 2024, average age 51
CMS counts 11 Medicare patients who saw Ali Williams in 2024. The largest group is 75 to 84, with 0 patients. 100% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ali Williams' median patient age at 46, with 39% women.
Ali Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Ali Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women39%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ali S. Williams wrote 2,084 Medicare Part D claims in 2024
In 2024, Ali Williams wrote 2,084 Medicare Part D claims for 68 patients. 89% of them were for generic drugs. CMS names the drug for 2,016 of them, across 39 drugs with 11 or more claims each, at $670,232 in total drug cost.
Ali Williams' Part D claims by kind of drug, 2024
- Generic1,847 claims89%
- Brand-name237 claims11%
Ali 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 Ali Williams' Part D claims, 2024
- Antipsychotics, patients 65 and over3%57 of 2,084 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Ali S. Williams takes part in Medicare
Ali 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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Ali S. Williams received $406 in industry payments in 2025
CMS Open Payments shows 15 general payments to Ali Williams from 8 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $136.
Companies that paid Ali Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Ali S. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Ali S. 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 Ali S. Williams' NPI number?
Ali S. Williams' NPI number is 1902182090. It was assigned on November 2, 2011, and it is active in the NPI Registry.
What does Ali S. Williams specialize in?
Ali S. Williams is a physician assistant in Moreno Valley, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Ali S. Williams practice?
Ali Williams practices at 26520 Cactus Ave, Moreno Valley, CA 92555. Ali Williams' primary practice is Riverside University Medical Center in Moreno Valley, California.
What is Ali S. Williams' office phone number?
The practice phone on file for Ali Williams is (951) 486-4458.
What medical group is Ali S. Williams part of?
Ali Williams is linked to Indio Community Health Center.
Does Ali S. Williams accept Medicare?
Yes. CMS lists Ali Williams as accepting Medicare assignment.
How many Medicare patients does Ali S. Williams see?
CMS counts 11 Medicare patients who saw Ali Williams in 2024, with an average age of 51.
What drugs does Ali S. Williams prescribe most?
In 2024 Medicare Part D data, Ali Williams' most prescribed drugs by claims were Trazodone HCl, Invega Sustenna and Olanzapine.
Has Ali S. Williams received payments from drug or device companies?
CMS Open Payments shows $406 in general payments to Ali Williams from 8 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Ali S. Williams been practicing?
Ali Williams graduated from medical school in 2010, 16 years ago.
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