NPPES file of Aug 9, 2026

Lai Wan Tan, M.D.

Internal Medicine Physician · Bremerton, WA

Lai Wan Tan, M.D. is an internal medicine physician with a practice address in Bremerton, Washington, and NPI 1720014657, issued on Jun 23, 2006. Check the license (Washington MD00036150, as entered in NPPES) on the Washington Medical Commission; 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
1720014657
Name
Lai Wan Tan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD00036150 WA
Self-reported in NPPES; status is on the state search
Practice location
2512 Wheaton Way, Bremerton, WA 98310
Phone
(360) 782-3700
Enumerated
Jun 23, 2006
Record last updated
Mar 7, 2023
Medicaid ID
8277956 WA
Medicare enrollment
Enrolled (PECOS I20080423000445); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 2512 Wheaton Way

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

  1. Terry Chun, MDDiagnostic Radiology Physician1194737429
  2. Anthony Hoovler, M.D.Endocrinology, Diabetes & Metabolism Physician1427009372
  3. John Lamberg, MDInternal Medicine Physician1053353292
  4. Bruce Robertson, LICSWClinical Social Worker1598756512
  5. Benjamin Sy, M.D.Pulmonary Disease Physician1427075183

Verify Lai Wan Tan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00036150
    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 Washington 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

55% more Medicare Part D claims than the average internal medicine physician in 2024

4,938 Medicare Part D claims for 513 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 96 claims were for opioids.

  1. Lai Tan4,938
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium499 claims
  2. Amlodipine Besylate304 claims
  3. Losartan Potassium216 claims
  4. Levothyroxine Sodium184 claims
  5. Losartan-Hydrochlorothiazide174 claims
  6. Simvastatin154 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. Permanente Medical Group IncSan Jose, CA

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

Lai Wan Tan among 3,079 internal medicine physician records in Washington

Lai Wan Tan, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1993 · median 2006 among the 1,852 with a school on file
  • Record last updated2023 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 internal medicine physician records list a practice address in Bremerton

They are 29 of the 3,142 NPPES records with a practice address in Bremerton, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. William Bauer, MDBremerton, WA 983101902887276
  2. Frederick Dore, MDBremerton, WA 983101851372395
  3. Michael Gannon, M.D.Bremerton, WA 983101366582710
  4. Gary Gretch, MDBremerton, WA 983101053392597
  5. Major Gross, MDBremerton, WA 983101326035387
  6. John Lamberg, MDBremerton, WA 983101053353292
  7. Irene Lee, MDBremerton, WA 983101861531113
  8. Naushaba Marri, MDBremerton, WA 983101679630461

Common questions

What is Lai Wan Tan, M.D.'s NPI number?

Lai Wan Tan, M.D.'s National Provider Identifier (NPI) is 1720014657, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lai Wan Tan, M.D. located?

The NPPES record lists a practice address at 2512 Wheaton Way, Bremerton, WA, 98310. Phone: (360) 782-3700. Providers update this record themselves, so call before visiting.

How can I verify Lai Wan Tan, M.D.'s license?

NPPES lists Washington license number MD00036150, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lai Wan Tan, M.D. prescribe under Medicare Part D?

In 2024, Lai Wan Tan, M.D. had 4,938 Medicare Part D claims for 513 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.