NPPES file of Aug 9, 2026

Kathleen Mary Koerner, D.O.

Surgery Physician · Gonzales, TX

Kathleen Mary Koerner, D.O. is a surgery physician with a practice address in Gonzales, Texas, and NPI 1093936171, issued on May 2, 2007. Check the license (Texas P0843, 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
1093936171
Name
Kathleen Mary Koerner
Credential
D.O.
Primary taxonomy
Surgery Physician 208600000X
License numbers
P0843 TX
5101015812 MI
Self-reported in NPPES; status is on the state search
Practice location
1110 N Sarah Dewitt Dr, Gonzales, TX 78629
Phone
(830) 672-8502
Enumerated
May 2, 2007
Record last updated
Sep 12, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(830) 672-3035
Medicaid ID
369192 AZ
Medicare enrollment
Enrolled (PECOS I20120118000836); accepts Medicare assignment
Medical or professional school
Arizona College Of Osteopathic Medicine Mid Western University, 2003
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 1110 N Sarah Dewitt Dr

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

  1. Jasmine Bonder, APRN-CNPNurse Practitioner1740858349
  2. Sheryl BreitschopfOccupational Therapist1538527031
  3. Terry ClayPhysical Therapist1649744301
  4. William Craig, MDCardiovascular Disease Physician1134115397
  5. Todd Crawford, PHYSICIAN ASST - CPhysician Assistant1154596179
  6. Karen FortuneSpeech-Language Pathologist1255799755

Verify Kathleen Mary Koerner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P0843
    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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11% fewer Medicare Part D claims than the average surgery physician in 2024

131 Medicare Part D claims for 59 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 31 claims were for opioids.

  1. Kathleen Koerner131
  2. Specialty average147

Most prescribed

  1. Tramadol Hcl29 claims
  2. Clindamycin Hcl19 claims
  3. Cefdinir18 claims
  4. Ciprofloxacin Hcl12 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: $115.62

4 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Koerner$115.62
  2. Specialty average$3,513.80

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

Bills Medicare through one group practice

  1. Gonzales Healthcare SystemsGonzales, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Surgery Physician providers in Texas

There are 2,192 surgery physician records in Texas.

Other surgery physician records in Texas

  1. Alan Abando, M.D.Cedar Park, TX1073561387
  2. Babak Abbassi, M.D.Greenville, TX1992151385
  3. Steven Abbate, MDSan Antonio, TX1235117433
  4. John Abbott, M.D.Rowlett, TX1255540936
  5. Kareem Abdelfattah, MDDallas, TX1053510339
  6. John Abdelsayed, MDSugar Land, TX1578983839
  7. Ziad Abdo, M.D.Dallas, TX1700838414
  8. Alan Abel, MDBig Spring, TX1518966829
  9. Stephen Abernathy, M.D.Temple, TX1851389779
  10. John Abikhaled, M.D.Austin, TX1639108731

Common questions

What is Kathleen Mary Koerner, D.O.'s NPI number?

Kathleen Mary Koerner, D.O.'s National Provider Identifier (NPI) is 1093936171, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Mary Koerner, D.O. located?

The NPPES record lists a practice address at 1110 N Sarah Dewitt Dr, Gonzales, TX, 78629. Phone: (830) 672-8502. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Mary Koerner, D.O.'s license?

NPPES lists Texas license number P0843, 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 Kathleen Mary Koerner, D.O. prescribe under Medicare Part D?

In 2024, Kathleen Mary Koerner, D.O. had 131 Medicare Part D claims for 59 beneficiaries; the average among surgery physician prescribers was 147. 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.