NPPES file of Aug 9, 2026

Sullivan Clyde Hanback, MD

Emergency Medicine Physician · Houston, TX

Sullivan Clyde Hanback, MD is an emergency medicine physician with a practice address in Houston, Texas, and NPI 1417538141, issued on Apr 15, 2021. Check the license (Texas U4523, 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
1417538141
Name
Sullivan Clyde Hanback
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
U4523 TX
Self-reported in NPPES; status is on the state search
Practice location
6431 Fannin Street, Houston, TX 77030
Phone
(713) 500-7878
Enumerated
Apr 15, 2021
Record last updated
Jun 9, 2026
Fax
(713) 500-0758
Medicare enrollment
Enrolled (PECOS I20240322000301); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 2021
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 6431 Fannin Street

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

  1. Kwasi Aboagye, MDStudent in an Organized Health Care Education/Training Program1710673645
  2. Julia Aguirre, DOPediatrics Physician1861027039
  3. Ahmed Ahmed, MDAnatomic Pathology & Clinical Pathology Physician1821762766
  4. Duane Akwar, M.D.Anesthesiology Physician1871842401
  5. Majd Al Shaarani, M.D.Anatomic Pathology & Clinical Pathology Physician1659768695
  6. Iad AlhallakStudent in an Organized Health Care Education/Training Program1962254714

Verify Sullivan Clyde Hanback in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license U4523
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average emergency medicine physician in 2024

50 Medicare Part D claims for 34 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Sullivan Hanback50
  2. Specialty average226

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

  1. Temple Faculty Practice Plan IncPhiladelphia, PA

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

Sullivan Clyde Hanback among 4,885 emergency medicine physician records in Texas

Sullivan Clyde Hanback, 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 updated2026 · 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).

818 emergency medicine physician records list a practice address in Houston

They are 818 of the 61,221 NPPES records with a practice address in Houston, and 4,885 emergency medicine physician records in Texas.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Bentley Bobrow, M.D.Houston, TX 770301528040276
  2. Jack Butler, M.D.Houston, TX 770301962491035
  3. Pamela Carmain, M.D.Houston, TX 770301285636266
  4. Crystal Cassidy, M.D.Houston, TX 770301316948599
  5. Robert Dickson, MDHouston, TX 770301609866391
  6. Swapan Dubey, M.D.Houston, TX 770301497756175
  7. Bhushan Kukkalli, M.D.Houston, TX 770301871579276
  8. Kelly Larkin, M.D.Houston, TX 770301144205683

Common questions

What is Sullivan Clyde Hanback, MD's NPI number?

Sullivan Clyde Hanback, MD's National Provider Identifier (NPI) is 1417538141, issued on Apr 15, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sullivan Clyde Hanback, MD located?

The NPPES record lists a practice address at 6431 Fannin Street, Houston, TX, 77030. Phone: (713) 500-7878. Providers update this record themselves, so call before visiting.

How can I verify Sullivan Clyde Hanback, MD's license?

NPPES lists Texas license number U4523, 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 Sullivan Clyde Hanback, MD prescribe under Medicare Part D?

In 2024, Sullivan Clyde Hanback, MD had 50 Medicare Part D claims for 34 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.