David I. Tasker, MD
Ophthalmology Physician · San Antonio, TX
David I. Tasker, MD is an ophthalmology physician with a practice address in San Antonio, Texas, and NPI 1659363810, issued on Aug 15, 2005. Check the license (Texas E1426, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- David I. Tasker
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- E1426 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1150 N Loop 1604 W, San Antonio, TX 78248
- Phone
- (210) 496-0496
- Enumerated
- Aug 15, 2005
- Record last updated
- May 6, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (210) 496-1226
- Medicaid ID
- 097744902 TX
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,514 in Texas → Look up another NPI →
Also registered at 1150 N Loop 1604 W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ariana AnciraPharmacy Technician1073102133
- Ashley BazoPharmacist1801521067
- Yesenia CorreaPharmacy Technician1114697604
- Ruth De La Cruz, CPHTPharmacy Technician1497477582
- Miguel DelgadoPharmacy Technician1194495820
- Julee Gilliland-Castillo, RPHPharmacist1588906143
Verify David I. Tasker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license E1426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average ophthalmology physician in 2024
32 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
David I. Tasker among 1,514 ophthalmology physician records in Texas
David I. Tasker, MD is one of 1,514 ophthalmology physician records with a practice address in Texas. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 78% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Texas
There are 1,514 ophthalmology physician records in Texas.
All 1,514 in Texas → Every provider in San Antonio → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Nader Iskander, MDSan Antonio, TX 782481659369601
- Timothy Lindquist, MDSan Antonio, TX 782481124281431
- Raul Membreno, MD, MPHSan Antonio, TX 782481821675190
- Manpreet Chhabra, M.D.San Antonio, TX 782491053575647
- Simra Ahmed, MDSan Antonio, TX 782511790288769
- Christina Bui, M.D.San Antonio, TX 782531659558617
- Darren Bell, MDSan Antonio, TX 782401205893708
- Jason Burns, M.D.San Antonio, TX 782401679579874
Common questions
What is David I. Tasker, MD's NPI number?
David I. Tasker, MD's National Provider Identifier (NPI) is 1659363810, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David I. Tasker, MD located?
The NPPES record lists a practice address at 1150 N Loop 1604 W, San Antonio, TX, 78248. Phone: (210) 496-0496. Providers update this record themselves, so call before visiting.
How can I verify David I. Tasker, MD's license?
NPPES lists Texas license number E1426, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David I. Tasker, MD prescribe under Medicare Part D?
In 2024, David I. Tasker, MD had 32 Medicare Part D claims; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.