NPPES file of Aug 9, 2026

Nancy Gisela Zegarra, M.D.

Internal Medicine Physician · Harker Heights, TX

Nancy Gisela Zegarra, M.D. is an internal medicine physician with a practice address in Harker Heights, Texas, and NPI 1366768715, issued on Apr 9, 2010. Check the license (Texas P5579, 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
1366768715
Name
Nancy Gisela Zegarra
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
P5579 TX
Self-reported in NPPES; status is on the state search
Practice location
800 W Central Texas Expy, Harker Heights, TX 76548
Phone
(254) 618-4330
Enumerated
Apr 9, 2010
Record last updated
Sep 3, 2013 (not updated in 13 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 800 W Central Texas Expy

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

  1. William Cashion, MDCardiovascular Disease Physician1497756860
  2. Kimberly Dietze, CNMAdvanced Practice Midwife1477927770
  3. John Duggan, MDOrthopaedic Surgery Physician1134396906
  4. Kenechukwu Eneli, M.D.Family Medicine Physician1235151192
  5. Mark Fierro, M.D.Family Medicine Physician1720425242
  6. Patricia Lambden, NPAdult Health Clinical Nurse Specialist1457438558

Verify Nancy Gisela Zegarra in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P5579    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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31% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,180 Medicare Part D claims for 305 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Nancy Zegarra2,180
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium150 claims
  2. Atorvastatin Calcium132 claims
  3. Amlodipine Besylate96 claims
  4. Rosuvastatin Calcium77 claims
  5. Lisinopril71 claims
  6. Gabapentin63 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: $48.80

2 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences 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. Nancy Zegarra$48.80
  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.

Internal Medicine Physician providers in Texas

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

All 9,175 in Texas → Every provider in Harker Heights →

Other internal medicine physician records in Texas

  1. Muhammad A. Sattar, MDDallas, TX1760465553
  2. Gayatri Aaluri, MDGalveston, TX1821928508
  3. Anunaya AashishDenton, TX1134246374
  4. Queenie Ann Abad, M.D.San Antonio, TX1174979785
  5. Fuad Abaleka, M.DLubbock, TX1861925596
  6. Carol Abalihi, M.D.El Paso, TX1326136243
  7. Oliverio Abarca Guzman, MDHarlingen, TX1346972940
  8. Obinna Abaribe, M.DMansfield, TX1457704355
  9. Enyinnaya Abarikwu, MDTyler, TX1174788178
  10. Sulaiman Abawi, D.O.Frisco, TX1780845255

Common questions

What is Nancy Gisela Zegarra, M.D.'s NPI number?

Nancy Gisela Zegarra, M.D.'s National Provider Identifier (NPI) is 1366768715, issued on Apr 9, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Gisela Zegarra, M.D. located?

The NPPES record lists a practice address at 800 W Central Texas Expy, Harker Heights, TX, 76548. Phone: (254) 618-4330. Providers update this record themselves, so call before visiting.

How can I verify Nancy Gisela Zegarra, M.D.'s license?

NPPES lists Texas license number P5579, 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 Nancy Gisela Zegarra, M.D. prescribe under Medicare Part D?

In 2024, Nancy Gisela Zegarra, M.D. had 2,180 Medicare Part D claims for 305 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.