Justin Garrett Hacnik, MD
Emergency Medicine Physician · Corpus Christi, TX
Justin Garrett Hacnik, MD is an emergency medicine physician with a practice address in Corpus Christi, Texas, and NPI 1043897747, issued on Mar 27, 2021. Check the license (Texas U3863, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Justin Garrett Hacnik
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- U3863 TX
BP10074735 TX
Self-reported in NPPES; status is on the state search - Practice location
- 600 Elizabeth Street, Corpus Christi, TX 78404
- Phone
- (361) 861-1864
- Enumerated
- Mar 27, 2021
- Record last updated
- Aug 24, 2023
- Medicare enrollment
- Enrolled (PECOS I20230713001767); accepts Medicare assignment
- Medical or professional school
- University Of Nevada School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 600 Elizabeth Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Endemano, D.O.Emergency Medicine Physician1578191995
- Candace IbbotsonSpeech-Language Pathologist1083833560
- Kathryn Kirkland, M.D.Emergency Medicine Physician1093732638
Verify Justin Garrett Hacnik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U3863Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average emergency medicine physician in 2024
54 Medicare Part D claims for 49 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Sulfamethoxazole-Trimethoprim11 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.
Bills Medicare through one group practice
- Gulf Coast Emergency Physicians, PLLCKingsville, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Garrett Hacnik among 4,885 emergency medicine physician records in Texas
Justin Garrett Hacnik, MD is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2013 among the 2,779 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 emergency medicine physician records list a practice address in Corpus Christi
They are 155 of the 5,600 NPPES records with a practice address in Corpus Christi, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Corpus Christi → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Nicholas Bown, MDCorpus Christi, TX 784041124068234
- Cadyn Crawford, MDCorpus Christi, TX 784041487159372
- Jordyn Ewbank, DOCorpus Christi, TX 784041437656410
- Mark Flora, M.D.Corpus Christi, TX 784041366860918
- Shani ItaliyaCorpus Christi, TX 784041558757443
- Paul Jackson, DOCorpus Christi, TX 784041114422599
- Kathryn Kirkland, M.D.Corpus Christi, TX 784041093732638
- Lamar MoodyCorpus Christi, TX 784041336307081
Common questions
What is Justin Garrett Hacnik, MD's NPI number?
Justin Garrett Hacnik, MD's National Provider Identifier (NPI) is 1043897747, issued on Mar 27, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Justin Garrett Hacnik, MD located?
The NPPES record lists a practice address at 600 Elizabeth Street, Corpus Christi, TX, 78404. Phone: (361) 861-1864. Providers update this record themselves, so call before visiting.
How can I verify Justin Garrett Hacnik, MD's license?
NPPES lists Texas license number U3863, 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 Justin Garrett Hacnik, MD prescribe under Medicare Part D?
In 2024, Justin Garrett Hacnik, MD had 54 Medicare Part D claims for 49 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.