NPPES file of Aug 9, 2026

Terry Fuller Eska, M.D.

Internal Medicine Physician · Gonzales, TX

Terry Fuller Eska, M.D. is an internal medicine physician with a practice address in Gonzales, Texas, and NPI 1558470864, issued on Aug 30, 2006. Check the license (Texas E6773, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558470864
Name
Terry Fuller Eska
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
E6773 TX
Self-reported in NPPES; status is on the state search
Practice location
1605 N Sarah Dewitt Dr, Gonzales, TX 78629
Phone
(830) 672-4995
Enumerated
Aug 30, 2006
Record last updated
May 11, 2026
Medicare enrollment
Enrolled (PECOS I20040714000623); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 1973
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1605 N Sarah Dewitt Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Williamson, M.D.General Practice Physician1821095696

Verify Terry Fuller Eska in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license E6773
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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97% more Medicare Part D claims than the average internal medicine physician in 2024

6,255 Medicare Part D claims for 250 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 79 claims were for opioids.

  1. Terry Eska6,255
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate383 claims
  2. Potassium Chloride272 claims
  3. Furosemide226 claims
  4. Atorvastatin Calcium210 claims
  5. Levothyroxine Sodium201 claims
  6. Hydrochlorothiazide194 claims

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.

Industry payments in 2024: $55.88

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Terry Eska$55.88
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Terry Fuller Eska among 9,175 internal medicine physician records in Texas

Terry Fuller Eska, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1973 · median 2004 among the 6,088 with a school on file
  • Record last updated2026 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in Texas

There are 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jennifer Clark, M.D.Georgetown, TX 786281003876095
  2. Christopher Hearne, M.D.Georgetown, TX 786281134189863
  3. Richard Lawlis, M.D.Georgetown, TX 786281710948955
  4. Chrishanthi Perera, M.D.Georgetown, TX 786281205871845
  5. Kumar Sathianathan, M.D.Georgetown, TX 786281831144161
  6. Anthony Shallin, M.D.Georgetown, TX 786281891734968
  7. Dharshini Wallooppillai, M.D.Georgetown, TX 786281558316521
  8. Ashton Wickramasinghe, MDGeorgetown, TX 786281295927580

Common questions

What is Terry Fuller Eska, M.D.'s NPI number?

Terry Fuller Eska, M.D.'s National Provider Identifier (NPI) is 1558470864, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Terry Fuller Eska, M.D. located?

The NPPES record lists a practice address at 1605 N Sarah Dewitt Dr, Gonzales, TX, 78629. Phone: (830) 672-4995. Providers update this record themselves, so call before visiting.

How can I verify Terry Fuller Eska, M.D.'s license?

NPPES lists Texas license number E6773, 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 Terry Fuller Eska, M.D. prescribe under Medicare Part D?

In 2024, Terry Fuller Eska, M.D. had 6,255 Medicare Part D claims for 250 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.