Jack A. Greenan
- Industry payments
- $120
- Affiliated sites
- 4
- Medical groups
- 4
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 10650 Culebra Rd, San Antonio, TX 78251
- 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
San Antonio, Texas
Find Jack Greenan'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.
Jack A. Greenan is an optometrist in San Antonio, Texas
Jack Greenan practices at Aeg Texas Professional in San Antonio, Texas.
Jack Greenan's NPI, 1639613979, was assigned on December 6, 2016. Jack Greenan holds Texas license 9121T.
- NPI
- 1639613979NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981981206
- NPI enumeration date
- December 6, 2016
- 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
- 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)
Jack A. Greenan practices at Aeg Texas Professional in San Antonio, Texas
Jack Greenan's primary practice is Aeg Texas Professional, at 10650 Culebra Rd, San Antonio, TX 78251 in Bexar County. The practice phone is (830) 896-2600.
- Aeg Texas Professional10650 Culebra Rd, San Antonio, TX 78251 · Bexar CountyPhone(830) 896-2600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Jack A. Greenan is affiliated with 5 sites of care and 4 medical groups
Jack Greenan's primary practice is Aeg Texas Professional in San Antonio, Texas. Dmand AI also links Jack Greenan to 4 group practices and clinics and 4 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 Jack A. Greenan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jack Greenan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aeg Texas Professional | Available with a free account |
| +4 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Jack A. Greenan is one of 3,272 optometrists in Texas
Optometrist is Jack Greenan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Jack Greenan is licensed in Texas.
Specialties and state licenses
- Optometrist, TexasPrimary
Optometrists near Jack Greenan
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
Jack A. Greenan's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Jack Greenan's median patient age at 66, with 58% women.
Jack Greenan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women58%
- Men40%
Source: Dmand AI Patient Panel Data
How Jack A. Greenan takes part in Medicare
Jack Greenan 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)
Jack A. Greenan received $120 in industry payments in 2025
CMS Open Payments shows 2 general payments to Jack Greenan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $120.
Companies that paid Jack Greenan 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 Jack A. Greenan'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 Data |
| 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 Jack A. Greenan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jack A. Greenan's NPI number?
Jack A. Greenan's NPI number is 1639613979. It was assigned on December 6, 2016, and it is active in the NPI Registry.
What does Jack A. Greenan specialize in?
Jack A. Greenan is an optometrist in San Antonio, Texas. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Jack A. Greenan practice?
Jack Greenan practices at 10650 Culebra Rd, San Antonio, TX 78251. Jack Greenan's primary practice is Aeg Texas Professional in San Antonio, Texas. Dmand AI also links Jack Greenan to 4 group practices and clinics and 4 medical groups.
What is Jack A. Greenan's office phone number?
The practice phone on file for Jack Greenan is (830) 896-2600.
What is Jack A. Greenan's medical license number?
Jack Greenan holds Texas license 9121T.
Does Jack A. Greenan accept Medicare?
Yes. CMS lists Jack Greenan as accepting Medicare assignment.
Has Jack A. Greenan received payments from drug or device companies?
CMS Open Payments shows $120 in general payments to Jack Greenan from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Jack A. Greenan been practicing?
Jack Greenan graduated from medical school in 2016, 10 years ago.
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