Heidi Joonhee Kook-Willis, AGNP-C
Gerontology Nurse Practitioner · Austin, TX
Heidi Joonhee Kook-Willis, AGNP-C is a gerontology nurse practitioner with a practice address in Austin, Texas, and NPI 1952804650, issued on Mar 9, 2018. Check the license (Texas AP136938, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heidi Joonhee Kook-Willis
- Credential
- AGNP-C
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- AP136938 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12731 Research Blvd Ste 301C, Austin, TX 78759
- Phone
- (512) 257-0497
- Enumerated
- Mar 9, 2018
- Record last updated
- Mar 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180320000913); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 954 in Texas → Look up another NPI →
Also registered at 12731 Research Blvd Ste 301C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mireya Martinez, APRN, FNP-CFamily Nurse Practitioner1982283321
- Audra PufferFamily Nurse Practitioner1205311719
Verify Heidi Joonhee Kook-Willis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license AP136938Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $42.16
1 payment: food and beverage; the largest payer was Acadia Pharmaceuticals Inc. The 3,903 providers of this specialty with any payment received $742.05 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.
Bills Medicare through one group practice
- Austin Geriatric Specialists PLLCAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heidi Joonhee Kook-Willis among 954 gerontology nurse practitioner records in Texas
Heidi Joonhee Kook-Willis, AGNP-C is one of 954 gerontology nurse practitioner records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 39% of them.
- NPI issued2018 · 39% of these records are older, 54% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2017 · median 2019 among the 577 with a school on file
- Record last updated2018 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Texas
There are 954 gerontology nurse practitioner records in Texas.
All 954 in Texas → Every provider in Austin → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Jennifer AlejagaAustin, TX 787591497611768
- Tabitha CantrellAustin, TX 787591104788736
- Rebecca Carter, RN, GNP-CAustin, TX 787591174574842
- Stacey Challe, AGNP-CAustin, TX 787591912775875
- Berril JosephAustin, TX 787591649726563
- Mengesha Keelen, DNPAustin, TX 787591942915939
- Danielle Kislin, APRNAustin, TX 787591609575604
- Kristen Pulido, APRNAustin, TX 787591881365690
Common questions
What is Heidi Joonhee Kook-Willis, AGNP-C's NPI number?
Heidi Joonhee Kook-Willis, AGNP-C's National Provider Identifier (NPI) is 1952804650, issued on Mar 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Heidi Joonhee Kook-Willis, AGNP-C located?
The NPPES record lists a practice address at 12731 Research Blvd Ste 301C, Austin, TX, 78759. Phone: (512) 257-0497. Providers update this record themselves, so call before visiting.
How can I verify Heidi Joonhee Kook-Willis, AGNP-C's license?
NPPES lists Texas license number AP136938, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity 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.