Theodore James Billy, OD
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 152
- Industry payments
- $174
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 111 E 4th St, Alton, IL 62002
- Practice phone
- Call (989) 845-7050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aeg Michigan Professional
Alton, Illinois
Find Theodore Billy'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.
Theodore James Billy is an optometrist in Alton, Illinois
Theodore Billy practices at Aeg Michigan Professional in Alton, Illinois.
Theodore Billy's NPI, 1861461766, was assigned on March 15, 2006. Theodore Billy graduated from Ohio State University - College of Optometry in 1998. Theodore Billy holds Michigan license 4901003965.
- NPI
- 1861461766NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224170899
- NPI enumeration date
- March 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (989) 845-7050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Theodore James Billy practices at Aeg Michigan Professional in Alton, Illinois
Theodore Billy's primary practice is Aeg Michigan Professional, at 111 E 4th St, Alton, IL 62002 in Madison County. The practice phone is (989) 845-7050.
- Aeg Michigan Professional111 E 4th St, Alton, IL 62002 · Madison CountyPhone(989) 845-7050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Theodore James Billy is affiliated with 3 sites of care and 2 medical groups
Theodore Billy's primary practice is Aeg Michigan Professional in Alton, Illinois. Dmand AI also links Theodore Billy to 2 group practices and clinics and 2 medical groups, 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 Theodore James Billy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Theodore Billy practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aeg Michigan Professional | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Theodore James Billy is one of 2,194 optometrists in Illinois
Optometrist is Theodore Billy's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Theodore Billy is licensed in Michigan.
Specialties and state licenses
- Optometrist, MichiganPrimary
Optometrists near Theodore Billy
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
Theodore James Billy treated 146 Medicare patients in 2024, average age 76
CMS counts 146 Medicare patients who saw Theodore Billy in 2024. The largest group is 75 to 84, with 65 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Theodore Billy's median patient age at 71, with 55% women.
Theodore Billy's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Theodore Billy's Medicare patients by sex, 2024
- Women8458%
- Men6242%
Chronic conditions among Theodore Billy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes38%
- Anxiety27%
- Chronic kidney disease21%
- Ischemic heart disease21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Theodore Billy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Theodore James Billy wrote 152 Medicare Part D claims in 2024
In 2024, Theodore Billy wrote 152 Medicare Part D claims for 79 patients. 56% of them were for generic drugs.
Theodore Billy's Part D claims by kind of drug, 2024
- Generic85 claims56%
- Brand-name67 claims44%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Theodore James Billy ranks in the 43rd percentile for cataract surgery in Medicare
Theodore Billy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of cataract surgery by Theodore Billy, more than 43% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Theodore Billy ranks in Medicare procedure volume
- Cataract surgery
- 43rd percentile19 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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Theodore James Billy received $174 in industry payments in 2025
CMS Open Payments shows 4 general payments to Theodore Billy 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, $87.
Companies that paid Theodore Billy the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Theodore James Billy graduated from Ohio State University - College of Optometry
Theodore Billy graduated from Ohio State University - College of Optometry in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Theodore James Billy'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 Theodore James Billy
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Theodore James Billy's NPI number?
Theodore James Billy's NPI number is 1861461766. It was assigned on March 15, 2006, and it is active in the NPI Registry.
What does Theodore James Billy specialize in?
Theodore James Billy is an optometrist in Alton, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Theodore James Billy practice?
Theodore Billy practices at 111 E 4th St, Alton, IL 62002. Theodore Billy's primary practice is Aeg Michigan Professional in Alton, Illinois. Dmand AI also links Theodore Billy to 2 group practices and clinics and 2 medical groups.
What is Theodore James Billy's office phone number?
The practice phone on file for Theodore Billy is (989) 845-7050.
What is Theodore James Billy's medical license number?
Theodore Billy holds Michigan license 4901003965.
Does Theodore James Billy accept Medicare?
Yes. CMS lists Theodore Billy as accepting Medicare assignment.
How many Medicare patients does Theodore James Billy see?
CMS counts 146 Medicare patients who saw Theodore Billy in 2024, with an average age of 76.
Where did Theodore James Billy go to medical school?
Theodore Billy graduated from Ohio State University - College of Optometry in 1998.
Has Theodore James Billy received payments from drug or device companies?
CMS Open Payments shows $174 in general payments to Theodore Billy from 3 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Theodore James Billy been practicing?
Theodore Billy graduated from medical school in 1998, 28 years ago.
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