Corey Bryce Giammarco, OD
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 58
- Industry payments
- $43
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 111 E 4th St, Alton, IL 62002
- Practice phone
- Call (830) 896-2600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aeg Texas Professional
Alton, Illinois
Find Corey Giammarco's 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.
Corey Bryce Giammarco is an optometrist in Alton, Illinois
Corey Giammarco practices at Aeg Texas Professional in Alton, Illinois.
Corey Giammarco's NPI, 1467008870, was assigned on August 12, 2019. Corey Giammarco holds Texas license 9718T.
- NPI
- 1467008870NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002348315
- NPI enumeration date
- August 12, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (830) 896-2600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Corey Bryce Giammarco practices at Aeg Texas Professional in Alton, Illinois
Corey Giammarco's primary practice is Aeg Texas Professional, at 111 E 4th St, Alton, IL 62002 in Madison County. The practice phone is (830) 896-2600.
- Aeg Texas Professional111 E 4th St, Alton, IL 62002 · Madison CountyPhone(830) 896-2600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Corey Bryce Giammarco is affiliated with 2 sites of care and 1 medical group
Corey Giammarco's primary practice is Aeg Texas Professional in Alton, Illinois. Dmand AI also links Corey Giammarco to 1 group practice or clinic and 1 medical group, each 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 Corey Bryce Giammarco's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Corey Giammarco practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aeg Texas Professional | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Corey Bryce Giammarco is one of 2,194 optometrists in Illinois
Optometrist is Corey Giammarco's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Corey Giammarco is licensed in Texas.
Specialties and state licenses
- Optometrist, TexasPrimary
Optometrists near Corey Giammarco
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
Corey Bryce Giammarco treated 27 Medicare patients in 2024, average age 74
CMS counts 27 Medicare patients who saw Corey Giammarco in 2024. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 0.77, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Corey Giammarco's median patient age at 61, with 50% women.
Chronic conditions among Corey Giammarco's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis41%
Share of Medicare patients with each condition. A patient can have several.
Corey Giammarco's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Corey Bryce Giammarco wrote 58 Medicare Part D claims in 2024
In 2024, Corey Giammarco wrote 58 Medicare Part D claims for 25 patients. 66% of them were for generic drugs.
Corey Giammarco's Part D claims by kind of drug, 2024
- Generic38 claims66%
- Brand-name20 claims34%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Corey Bryce Giammarco ranks in the 45th percentile for cataract surgery in Medicare
Corey Giammarco accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of cataract surgery by Corey Giammarco, more than 45% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Corey Giammarco ranks in Medicare procedure volume
- Cataract surgery
- 45th percentile20 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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Corey Bryce Giammarco received $43 in industry payments in 2025
CMS Open Payments shows 2 general payments to Corey Giammarco from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Johnson & Johnson Vision Care, Inc. paid the most, $23.
Companies that paid Corey Giammarco 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 Corey Bryce Giammarco'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) |
| 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 Corey Bryce Giammarco
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Corey Bryce Giammarco's NPI number?
Corey Bryce Giammarco's NPI number is 1467008870. It was assigned on August 12, 2019, and it is active in the NPI Registry.
What does Corey Bryce Giammarco specialize in?
Corey Bryce Giammarco is an optometrist in Alton, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Corey Bryce Giammarco practice?
Corey Giammarco practices at 111 E 4th St, Alton, IL 62002. Corey Giammarco's primary practice is Aeg Texas Professional in Alton, Illinois. Dmand AI also links Corey Giammarco to 1 group practice or clinic and 1 medical group.
What is Corey Bryce Giammarco's office phone number?
The practice phone on file for Corey Giammarco is (830) 896-2600.
What is Corey Bryce Giammarco's medical license number?
Corey Giammarco holds Texas license 9718T.
Does Corey Bryce Giammarco accept Medicare?
Yes. CMS lists Corey Giammarco as accepting Medicare assignment.
How many Medicare patients does Corey Bryce Giammarco see?
CMS counts 27 Medicare patients who saw Corey Giammarco in 2024, with an average age of 74.
Has Corey Bryce Giammarco received payments from drug or device companies?
CMS Open Payments shows $43 in general payments to Corey Giammarco from 2 companies from 2025 to 2025. The largest total came from Johnson & Johnson Vision Care, Inc.
How long has Corey Bryce Giammarco been practicing?
Corey Giammarco graduated from medical school in 2019, 7 years ago.
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