NPPES file of Aug 9, 2026

Lauren I. Okamoto, MD

Family Medicine Physician · Honolulu, HI

Lauren I. Okamoto, MD is a family medicine physician with a practice address in Honolulu, Hawaii, and NPI 1023270394, issued on Jun 27, 2008. Check the license (Hawaii MDR5500, as entered in NPPES) on the Hawaii 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
1023270394
Name
Lauren I. Okamoto
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
MDR5500 HI
16053 HI
Self-reported in NPPES; status is on the state search
Practice location
347 N Kuakini St, Honolulu, HI 96817
Phone
(808) 523-8461
Enumerated
Jun 27, 2008
Record last updated
Mar 29, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120824000734); accepts Medicare assignment
Medical or professional school
University Of Hawaii John A. Burns School Of Medicine, 2008
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 347 N Kuakini St

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

  1. Andy Aoki, M.D.Diagnostic Radiology Physician1558326629
  2. Howard Arimoto, M.D.Diagnostic Radiology Physician1033174818
  3. David Brush, MDEmergency Medicine Physician1952392748
  4. John Buzanoski, M.D.Geriatric Medicine (Internal Medicine) Physician1407873037
  5. Andy Chon, MDDiagnostic Radiology Physician1093978538
  6. Hillary Chun, DPTPhysical Therapist1033772983

Verify Lauren I. Okamoto in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersHawaii Medical Board
    Search for license MDR5500
    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 Hawaii 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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60% fewer Medicare Part D claims than the average family medicine physician in 2024

1,429 Medicare Part D claims for 46 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Lauren Okamoto1,429
  2. Specialty average3,544

Most prescribed

  1. Furosemide126 claims
  2. Trazodone Hcl55 claims
  3. Potassium Chloride53 claims
  4. Tamsulosin Hcl51 claims
  5. Escitalopram Oxalate49 claims
  6. Pantoprazole Sodium45 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

  1. Queens University Medical GroupHonolulu, HI

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

Lauren I. Okamoto among 730 family medicine physician records in Hawaii

Lauren I. Okamoto, MD is one of 730 family medicine physician records with a practice address in Hawaii. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 43% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2008 · median 2006 among the 383 with a school on file
  • Record last updated2012 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

160 family medicine physician records list a practice address in Honolulu

They are 160 of the 12,408 NPPES records with a practice address in Honolulu, and 730 family medicine physician records in Hawaii.

The 8 family medicine physician records with the nearest ZIP codes

  1. Kenneth Fink, MDHonolulu, HI 968171225020720
  2. Tsuneari Hayashi, M.D.Honolulu, HI 968171104147677
  3. Izumi Kobashigawa, MDHonolulu, HI 968171366550865
  4. Barbara Kobayashi, MDHonolulu, HI 968171245386325
  5. Jesus Lucas, M.D., PHD.Honolulu, HI 968171790703197
  6. Melissa McKinney, D.O.Honolulu, HI 968171124112123
  7. Caroline Mee, M.D.Honolulu, HI 968171508035015
  8. Owen Nishikawa, MDHonolulu, HI 968171053471797

Common questions

What is Lauren I. Okamoto, MD's NPI number?

Lauren I. Okamoto, MD's National Provider Identifier (NPI) is 1023270394, issued on Jun 27, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Lauren I. Okamoto, MD located?

The NPPES record lists a practice address at 347 N Kuakini St, Honolulu, HI, 96817. Phone: (808) 523-8461. Providers update this record themselves, so call before visiting.

How can I verify Lauren I. Okamoto, MD's license?

NPPES lists Hawaii license number MDR5500, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lauren I. Okamoto, MD prescribe under Medicare Part D?

In 2024, Lauren I. Okamoto, MD had 1,429 Medicare Part D claims for 46 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.