NPPES file of Aug 9, 2026

Michael Koichi Hasegawa, M.D.

Emergency Medicine Physician · West Lake Hills, TX

Michael Koichi Hasegawa, M.D. is an emergency medicine physician with a practice address in West Lake Hills, Texas, and NPI 1154761971, issued on Jun 25, 2013. Check the license (Texas Q6753, 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
1154761971
Name
Michael Koichi Hasegawa
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
Q6753 TX
125063470 IL
Self-reported in NPPES; status is on the state search
Practice location
5100 Bee Caves RD, West Lake Hills, TX 78746
Phone
(512) 524-7783
Enumerated
Jun 25, 2013
Record last updated
May 19, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →

Verify Michael Koichi Hasegawa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q6753    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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77% fewer Medicare Part D claims than the average emergency medicine physician in 2024

53 Medicare Part D claims for 39 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Michael Hasegawa53
  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.

Michael Koichi Hasegawa among 4,885 emergency medicine physician records in Texas

Michael Koichi Hasegawa, M.D. 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 2013, is newer than 59% of them.

  • NPI issued2013 · 59% of these records are older, 37% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • 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).

Emergency Medicine Physician providers in Texas

There are 4,885 emergency medicine physician records in Texas.

All 4,885 in Texas → Every provider in West Lake Hills → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Robert Allensworth, MDAustin, TX 787461225002736
  2. Richard Bae, M.D.Austin, TX 787461154340297
  3. Ryan Cradeur, M.D.Austin, TX 787461326027897
  4. Amanda Dupont, MDWest Lake Hills, TX 787461912064288
  5. James Hefner, MDAustin, TX 787461063654606
  6. Matthew Holden, M.D.Austin, TX 787461871575969
  7. David Jacoby, M.D.West Lake Hills, TX 787461437335635
  8. Tea JonssonAustin, TX 787461669908471

Common questions

What is Michael Koichi Hasegawa, M.D.'s NPI number?

Michael Koichi Hasegawa, M.D.'s National Provider Identifier (NPI) is 1154761971, issued on Jun 25, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Michael Koichi Hasegawa, M.D. located?

The NPPES record lists a practice address at 5100 Bee Caves RD, West Lake Hills, TX, 78746. Phone: (512) 524-7783. Providers update this record themselves, so call before visiting.

How can I verify Michael Koichi Hasegawa, M.D.'s license?

NPPES lists Texas license number Q6753, 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 Michael Koichi Hasegawa, M.D. prescribe under Medicare Part D?

In 2024, Michael Koichi Hasegawa, M.D. had 53 Medicare Part D claims for 39 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.