NPPES file of Aug 9, 2026

Mark A. Hackbarth, MD

Addiction Medicine (Anesthesiology) Physician · Henderson, TX

Mark A. Hackbarth, MD is an addiction medicine (anesthesiology) physician with a practice address in Henderson, Texas, and NPI 1629071527, issued on May 24, 2005. Check the license (Texas G3420, 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
1629071527
Name
Mark A. Hackbarth
Credential
MD
Primary taxonomy
Addiction Medicine (Anesthesiology) Physician 207LA0401X
License number
G3420 TX
Self-reported in NPPES; status is on the state search
Practice location
300 Wilson St, Henderson, TX 75652
Phone
(903) 655-6536
Enumerated
May 24, 2005
Record last updated
Jul 14, 2025
Medicare enrollment
Enrolled (PECOS I20040416001122); accepts Medicare assignment
Medical or professional school
Oral Roberts University School Of Medicine, 1982
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 300 Wilson St

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

  1. Jathan Cantu, M.D.Family Medicine Physician1932174596
  2. Joseph Carver, D.O.Family Medicine Physician1720408909
  3. Glena Davis, D.O.Obstetrics & Gynecology Physician1932383981
  4. Nino Fuller, AGACNP-BCNurse Practitioner1962974469
  5. Dwight Hall, CRNACertified Registered Nurse Anesthetist1770582736
  6. Mica Norman, PMHNP-BC, FNP-CPsychiatric/Mental Health Nurse Practitioner1053953794

Verify Mark A. Hackbarth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G3420
    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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2.9 times the Medicare Part D claims of the average addiction medicine (anesthesiology) physician in 2024

1,010 Medicare Part D claims for 110 beneficiaries, against an average of 345 among the 58 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 491 claims were for opioids.

  1. Mark Hackbarth1,010
  2. Specialty average345

Most prescribed

  1. Hydrocodone-Acetaminophen240 claims
  2. Gabapentin109 claims
  3. Tizanidine Hcl80 claims
  4. Tramadol Hcl58 claims
  5. Baclofen56 claims
  6. Pregabalin41 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: $50.02

2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 34 providers of this specialty with any payment received $370.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Hackbarth$50.02
  2. Specialty average$370.73

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

Bills Medicare through 4 group practices

  1. Christus Trinity ClinicTyler, TX
  2. East Texas Medical Center HendersonHenderson, TX
  3. Henderson Hospital LLCHenderson, TX
  4. Henderson Memorial HospitalHenderson, TX

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

Addiction Medicine (Anesthesiology) Physician providers in Texas

There are 6 addiction medicine (anesthesiology) physician records in Texas.

The 5 addiction medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Sharon Bailey, D.ODallas, TX 752431730432766
  2. Charles Irwin, M.D.Dallas, TX 752311093792566
  3. James Lai, M.D.Houston, TX 770431942291406
  4. John Blakely, DOSan Antonio, TX 782281619945839
  5. Neal Gray, M.D.Fort Sam Houston, TX 782341790754398

Common questions

What is Mark A. Hackbarth, MD's NPI number?

Mark A. Hackbarth, MD's National Provider Identifier (NPI) is 1629071527, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Hackbarth, MD located?

The NPPES record lists a practice address at 300 Wilson St, Henderson, TX, 75652. Phone: (903) 655-6536. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Hackbarth, MD's license?

NPPES lists Texas license number G3420, 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 Mark A. Hackbarth, MD prescribe under Medicare Part D?

In 2024, Mark A. Hackbarth, MD had 1,010 Medicare Part D claims for 110 beneficiaries; the average among addiction medicine (anesthesiology) physician prescribers was 345. 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.