Andrew S. Cassis, OD
- Medicare patients, 2024
- 441
- Part D claims, 2024
- 100
- Industry payments
- $87
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 3701 Maccorkle SE Ave, Charleston, WV 25304
- Practice phone
- Call (304) 720-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Charleston Internal Medicine Inc
Charleston, West Virginia
Find Andrew Cassis' 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.
Andrew S. Cassis is an optometrist in Charleston, West Virginia
Andrew Cassis practices at Charleston Internal Medicine Inc in Charleston, West Virginia.
Andrew Cassis' NPI, 1487103255, was assigned on September 22, 2016. Andrew Cassis graduated from University of Houston - College of Optometry in 2016. Andrew Cassis holds West Virginia license 2026-IOD1.
- NPI
- 1487103255NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820378656
- NPI enumeration date
- September 22, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (304) 720-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Andrew S. Cassis practices at Charleston Internal Medicine Inc in Charleston, West Virginia
Andrew Cassis' primary practice is Charleston Internal Medicine Inc, at 3701 Maccorkle SE Ave, Charleston, WV 25304 in Kanawha County. The practice phone is (304) 720-2345.
- Charleston Internal Medicine Inc3701 Maccorkle SE Ave, Charleston, WV 25304 · Kanawha CountyPhone(304) 720-2345
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Andrew S. Cassis is affiliated with 2 sites of care
Andrew Cassis' primary practice is Charleston Internal Medicine Inc in Charleston, West Virginia. Dmand AI also links Andrew Cassis to 1 physician office, 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 Andrew S. Cassis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Andrew Cassis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Charleston Internal Medicine Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Andrew S. Cassis is one of 207 optometrists in West Virginia
Optometrist is Andrew Cassis' primary specialty in the NPI Registry, under taxonomy code 152W00000X. Andrew Cassis is licensed in West Virginia.
Specialties and state licenses
- Optometrist, West VirginiaPrimary
Optometrists near Andrew Cassis
Counts of optometrists 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
Andrew S. Cassis treated 441 Medicare patients in 2024, average age 77
CMS counts 441 Medicare patients who saw Andrew Cassis in 2024. The largest group is 65 to 74, with 180 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Andrew Cassis' median patient age at 75, with 59% women.
Andrew Cassis' Medicare patients by age, 2024
Andrew Cassis' Medicare patients by sex, 2024
- Women26560%
- Men17640%
Chronic conditions among Andrew Cassis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes41%
- Ischemic heart disease35%
- Chronic kidney disease30%
- Mood disorders25%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Andrew Cassis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Andrew S. Cassis wrote 100 Medicare Part D claims in 2024
In 2024, Andrew Cassis wrote 100 Medicare Part D claims for 51 patients. 77% of them were for generic drugs.
Andrew Cassis' Part D claims by kind of drug, 2024
- Generic77 claims77%
- Brand-name23 claims23%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Andrew S. Cassis takes part in Medicare
Andrew Cassis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 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
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Andrew S. Cassis received $87 in industry payments in 2025
CMS Open Payments shows 4 general payments to Andrew Cassis from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $42.
Companies that paid Andrew Cassis the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Andrew S. Cassis graduated from University of Houston - College of Optometry
Andrew Cassis graduated from University of Houston - College of Optometry in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Andrew S. Cassis'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 (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 Andrew S. Cassis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Andrew S. Cassis' NPI number?
Andrew S. Cassis' NPI number is 1487103255. It was assigned on September 22, 2016, and it is active in the NPI Registry.
What does Andrew S. Cassis specialize in?
Andrew S. Cassis is an optometrist in Charleston, West Virginia. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Andrew S. Cassis practice?
Andrew Cassis practices at 3701 Maccorkle SE Ave, Charleston, WV 25304. Andrew Cassis' primary practice is Charleston Internal Medicine Inc in Charleston, West Virginia. Dmand AI also links Andrew Cassis to 1 physician office.
What is Andrew S. Cassis' office phone number?
The practice phone on file for Andrew Cassis is (304) 720-2345.
What is Andrew S. Cassis' medical license number?
Andrew Cassis holds West Virginia license 2026-IOD1.
Does Andrew S. Cassis accept Medicare?
Yes. CMS lists Andrew Cassis as accepting Medicare assignment.
How many Medicare patients does Andrew S. Cassis see?
CMS counts 441 Medicare patients who saw Andrew Cassis in 2024, with an average age of 77.
Where did Andrew S. Cassis go to medical school?
Andrew Cassis graduated from University of Houston - College of Optometry in 2016.
Has Andrew S. Cassis received payments from drug or device companies?
CMS Open Payments shows $87 in general payments to Andrew Cassis from 3 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Andrew S. Cassis been practicing?
Andrew Cassis graduated from medical school in 2016, 10 years ago.
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