Karen Holzer, FNP-C
Nurse Practitioner · La Vernia, TX
Karen Holzer, FNP-C is a nurse practitioner with a practice address in La Vernia, Texas, and NPI 1780394593, issued on Dec 2, 2022. Check the license (Texas 1099965, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Holzer
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 1099965 TX
Self-reported in NPPES; status is on the state search - Practice location
- 13857 US Highway 87 W, La Vernia, TX 78121
- Phone
- (303) 711-4008
- Enumerated
- Dec 2, 2022
- Entity
- Type 1 · individual
Also registered at 13857 US Highway 87 W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cody BlissPhysical Therapist1972200558
- Carlos Caro, MDFamily Medicine Physician1295189025
- Valerie Dryka-Garcia, FNP-CFamily Nurse Practitioner1982241691
- Brina Esser, APRNFamily Nurse Practitioner1346884509
- Meghan Wilson, FNPFamily Nurse Practitioner1609330893
Verify Karen Holzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 1099965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
61% fewer Medicare Part D claims than the average nurse practitioner in 2024
449 Medicare Part D claims for 282 beneficiaries, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass56 claims
- Methylprednisolone49 claims
- Prednisone45 claims
- Nitrofurantoin Mono-Macro34 claims
- Azithromycin31 claims
- Sulfamethoxazole-Trimethoprim25 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: $54.70
3 payments, mostly food and beverage; the largest payer was Pfizer Inc.. The 36,168 providers of this specialty with any payment received $802.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Wilson County Memorial Hospital DistrictLa Vernia, TX
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
2 nurse practitioner records list a La Vernia practice address
They are 2 of the 92 NPPES records with a La Vernia practice address, and 4,912 nurse practitioner records in Texas.
All 2 in La Vernia → All 4,912 in Texas → Every provider in La Vernia →
Other nurse practitioner records in Texas
- Cornelia Abanobi, NPTomball, TX1831889005
- Patricia Abbott, FNP-CSan Antonio, TX1639561897
- Malika Abdelfettah, A/G NPGarland, TX1902259815
- Muntaha Abdelhadi, R.N., C.P.N.P.Dallas, TX1326503095
- Guelbert Abellana, N.P.Houston, TX1457605156
- Mary Abelt, CPNPHouston, TX1780764043
- Maria Abernathy, RNAustin, TX1528103371
- Pamela Abeyta, APNFort Sam Houston, TX1497089494
- Shibi Abhilash-Kunjumon, FNPLeague City, TX1376088708
- Kathleen AbingSan Antonio, TX1871425447
Common questions
What is Karen Holzer, FNP-C's NPI number?
Karen Holzer, FNP-C's National Provider Identifier (NPI) is 1780394593, issued on Dec 2, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Karen Holzer, FNP-C located?
The NPPES record lists a practice address at 13857 US Highway 87 W, La Vernia, TX, 78121. Phone: (303) 711-4008. Providers update this record themselves, so call before visiting.
How can I verify Karen Holzer, FNP-C's license?
NPPES lists Texas license number 1099965, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Holzer, FNP-C prescribe under Medicare Part D?
In 2024, Karen Holzer, FNP-C had 449 Medicare Part D claims for 282 beneficiaries; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.