William Casas
- Medicare services, 2024
- 495
- Medicare patients, 2024
- 197
- Part D claims, 2024
- 4,378
- Hospital affiliations
- 1
- Industry payments
- $75
- Practice address
- 2333 Foothill Blvd, La Verne, CA 91750
- Practice phone
- Call (909) 392-6501
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Family Health Center
La Verne, California
Find William Casas' 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.
William Casas is a family medicine physician in La Verne, California
William Casas practices at Family Health Center in La Verne, California.
William Casas' NPI, 1477998615, was assigned on May 1, 2013. William Casas graduated from Juan N. Corpas School of Medicine in 1996. William Casas' California license number on file is A139442.
- NPI
- 1477998615NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557502499
- NPI enumeration date
- May 1, 2013
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (909) 392-6501
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
William Casas practices at Family Health Center in La Verne, California
William Casas' primary practice is Family Health Center, at 2333 Foothill Blvd, La Verne, CA 91750 in Los Angeles County. The practice phone is (909) 392-6501.
- Family Health Center2333 Foothill Blvd, La Verne, CA 91750 · Los Angeles CountyPhone(909) 392-6501
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William Casas is affiliated with 3 sites of care and 1 medical group
William Casas' primary practice is Family Health Center in La Verne, California. William Casas is also affiliated with Pomona Valley Hospital Medical Center. The medical group on file is Premier Family Medicine Associates. Dmand AI also links William Casas to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at William Casas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Casas practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Family Health Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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William Casas is one of 15,680 family medicine physicians in California
Family medicine is William Casas' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. William Casas is board certified in family medicine by the American Board of Family Medicine. William Casas has a license on file in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute gastroduodenitis, acute sinusitis, acute skin infection, aneurysm, ankle or foot injury, anxiety, arthritis and asthma among the conditions William Casas treats.
Family medicine physicians near William Casas
Counts of family medicine physicians 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
William Casas billed Medicare for 495 services in 2024
CMS data shows 495 Medicare services from William Casas across 6 procedure codes in 2024, for 197 Medicare patients. Medicare paid $32,149 for them.
William Casas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4402024: 35120%
- Other services
- 2023: 02024: 144
Where William Casas' Medicare services took place, 2024
- In an office42786%
- In a facility6814%
William Casas compared with the California median for family medicine physicians, 2024
- William Casas
- California median
- Medicare services
- 495vs 2462.0 times
- Medicare patients
- 197vs 11867% above
- Part D claims
- 3,806vs 8334.6 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
William Casas' 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 William Casas?
Medicare shows one payer. Book a meeting to get commercial claims data for William Casas and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
William Casas treated 197 Medicare patients in 2024, average age 72
CMS counts 197 Medicare patients who saw William Casas in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 36% are also on Medicaid. Their average risk score is 1.75, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts William Casas' median patient age at 52, with 51% women.
William Casas' Medicare patients by age, 2024
William Casas' Medicare patients by sex, 2024
- Women12161%
- Men7639%
Chronic conditions among William Casas' Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Diabetes45%
- Arthritis44%
- Mood disorders27%
- Anxiety26%
- Depression26%
- Heart failure25%
Share of Medicare patients with each condition. A patient can have several.
William Casas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William Casas wrote 4,378 Medicare Part D claims in 2024
In 2024, William Casas wrote 4,378 Medicare Part D claims for 483 patients. 86% of them were for generic drugs. CMS names the drug for 3,806 of them, across 83 drugs with 11 or more claims each, at $348,980 in total drug cost. In 2023, CMS named 3,650 claims across 77 drugs.
William Casas' Part D claims by kind of drug, 2024
- Generic3,757 claims86%
- Brand-name589 claims13%
- Other32 claims1%
William Casas' 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 William Casas' Part D claims, 2024
- Opioids1%59 of 4,378 claims
- Antibiotics2%68 of 4,378 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: 3,6502024: 3,8064%
Drugs named by CMS: 83 in 2024, 77 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
William Casas offers telehealth to Medicare patients
CMS lists William Casas as offering telehealth.
- Offers telehealth
- Yes
Removal of skin lesions: 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)
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William Casas received $75 in industry payments from 2018 to 2024
CMS Open Payments shows 3 general payments to William Casas from 3 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $48.
General payments to William Casas by program year, 2018 to 2024
Companies that paid William Casas the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
William Casas graduated from Juan N. Corpas School of Medicine
William Casas graduated from Juan N. Corpas School of Medicine in 1996.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
William Casas accepts plans from 14 insurance carriers
William Casas is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- LA Care
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- +6 more carriersWith a free account
Plan types William Casas accepts, by number of carriers
- PPO9
- Medicare8
- HMO7
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for William Casas'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 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 |
| 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 William Casas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Casas' NPI number?
William Casas' NPI number is 1477998615. It was assigned on May 1, 2013, and it is active in the NPI Registry.
What does William Casas specialize in?
William Casas is a family medicine physician in La Verne, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does William Casas practice?
William Casas practices at 2333 Foothill Blvd, La Verne, CA 91750. William Casas' primary practice is Family Health Center in La Verne, California. Dmand AI also links William Casas to 1 group practice or clinic.
What is William Casas' office phone number?
The practice phone on file for William Casas is (909) 392-6501.
What is William Casas' medical license number?
William Casas' California license number on file is A139442.
Which hospitals is William Casas affiliated with?
William Casas is affiliated with Pomona Valley Hospital Medical Center.
What medical group is William Casas part of?
William Casas is linked to Premier Family Medicine Associates.
Does William Casas accept Medicare?
Yes. CMS data shows William Casas billed Medicare for 495 services in 2024.
Does William Casas offer telehealth?
Yes. The CMS Doctors and Clinicians file lists William Casas as offering telehealth services.
How many Medicare patients does William Casas see?
CMS counts 197 Medicare patients who saw William Casas in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
Is William Casas board certified?
Yes. William Casas is board certified in family medicine by the American Board of Family Medicine.
What services does William Casas bill to Medicare?
In 2024, William Casas' most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and hospital inpatient care (99232).
Where did William Casas go to medical school?
William Casas graduated from Juan N. Corpas School of Medicine in 1996.
What drugs does William Casas prescribe most?
In 2024 Medicare Part D data, William Casas' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has William Casas received payments from drug or device companies?
CMS Open Payments shows $75 in general payments to William Casas from 3 companies from 2018 to 2024. The largest total came from Edwards Lifesciences Corporation.
How long has William Casas been practicing?
William Casas graduated from medical school in 1996, 30 years ago.
What insurance does William Casas accept?
William Casas is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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