NPPES file of Aug 9, 2026

Alan A. Hasegawa, MD

Psychiatry Physician · Tulsa, OK

Alan A. Hasegawa, MD is a psychiatry physician with a practice address in Tulsa, Oklahoma, and NPI 1639149818, issued on Jan 23, 2006. Check the license (Oklahoma 17409, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639149818
Name
Alan A. Hasegawa
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
17409 OK
Self-reported in NPPES; status is on the state search
Practice location
6655 S Yale Ave, Tulsa, OK 74136
Phone
(918) 491-5051
Enumerated
Jan 23, 2006
Record last updated
Jan 31, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(918) 502-5060
Medicaid ID
100216860C OK
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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Also registered at 6655 S Yale Ave

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

  1. Kara Alger, APRN, CNPPsychiatric/Mental Health Nurse Practitioner1104600279
  2. Mohamad Alrifai, DOPsychiatry Physician1164092730
  3. Monica Armstrong, LMFTMarriage & Family Therapist1912154550
  4. Casey Augustus-Horvath, PHDClinical Psychologist1154600435
  5. Robin Aupperle, PH.D.Clinical Psychologist1073887907
  6. Marla Barrett, LCSWClinical Social Worker1124094131

Verify Alan A. Hasegawa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 17409
    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 Oklahoma license search

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78% more Medicare Part D claims than the average psychiatry physician in 2024

1,779 Medicare Part D claims for 376 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Alan Hasegawa1,779
  2. Specialty average1,000

Most prescribed

  1. Alprazolam173 claims
  2. Duloxetine Hcl109 claims
  3. Lamotrigine98 claims
  4. Clonazepam89 claims
  5. Quetiapine Fumarate85 claims
  6. Trazodone Hcl85 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 89.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.2
  2. Costout of 100 · 30%70.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Alan A. Hasegawa among 463 psychiatry physician records in Oklahoma

Alan A. Hasegawa, MD is one of 463 psychiatry physician records with a practice address in Oklahoma. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 56% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 46% of these records are
  • Record last updated2017 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Oklahoma

There are 463 psychiatry physician records in Oklahoma.

The 8 psychiatry physician records with the nearest ZIP codes

  1. John Chelf, MDTulsa, OK 741361679553242
  2. Michael Dubriwny, MDTulsa, OK 741361659341808
  3. Katherine Godwin, MDTulsa, OK 741361649240706
  4. Heather Hall, MDTulsa, OK 741361497750343
  5. Carol Hanson, D.O.Tulsa, OK 741361295799377
  6. Phillip Leon, MDTulsa, OK 741361023069853
  7. Dominic Losacco, MDTulsa, OK 741361063452571
  8. Matthew Meyer, MDTulsa, OK 741361154399574

Common questions

What is Alan A. Hasegawa, MD's NPI number?

Alan A. Hasegawa, MD's National Provider Identifier (NPI) is 1639149818, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alan A. Hasegawa, MD located?

The NPPES record lists a practice address at 6655 S Yale Ave, Tulsa, OK, 74136. Phone: (918) 491-5051. Providers update this record themselves, so call before visiting.

How can I verify Alan A. Hasegawa, MD's license?

NPPES lists Oklahoma license number 17409, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alan A. Hasegawa, MD prescribe under Medicare Part D?

In 2024, Alan A. Hasegawa, MD had 1,779 Medicare Part D claims for 376 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Alan A. Hasegawa, MD's MIPS final score?

The 2023 MIPS final score is 89.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.