NPPES file of Aug 9, 2026

Bob B. Thong, MD

Internal Medicine Physician · Seattle, WA

Bob B. Thong, MD is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1538352802, issued on Aug 21, 2007. Check the license (Washington MD60123029, 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
1538352802
Name
Bob B. Thong
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD60123029 WA
Self-reported in NPPES; status is on the state search
Practice location
1111 W Blaine St, Seattle, WA 98119
Phone
(206) 659-7816
Enumerated
Aug 21, 2007
Record last updated
Jan 7, 2025
Fax
(888) 518-4955
Medicare enrollment
Enrolled (PECOS I20100317000036); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 2006
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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Verify Bob B. Thong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60123029
    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

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40% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,900 Medicare Part D claims for 87 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Bob Thong1,900
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium119 claims
  2. Quetiapine Fumarate77 claims
  3. Atorvastatin Calcium73 claims
  4. Amlodipine Besylate64 claims
  5. Sertraline Hcl60 claims
  6. Eliquis59 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 3 group practices

  1. Select Outpatient Services IncGlenview, IL
  2. Select Rehabilitation, LLCGlenview, IL
  3. Senior Healthcare Associates LLCSeattle, WA

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

Bob B. Thong among 3,079 internal medicine physician records in Washington

Bob B. Thong, MD 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 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2006 · median 2006 among the 1,852 with a school on file
  • Record last updated2025 · 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).

821 internal medicine physician records list a practice address in Seattle

They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Susan Baumgaertel, M.D.Seattle, WA 981191801862511
  2. Richard Weller, M.D.Seattle, WA 981191194815258
  3. Christopher Chen, MDSeattle, WA 981181376842146
  4. Dana Fong, M.D., PH.D.Seattle, WA 981181558511816
  5. Megan Gillum, M.D.Seattle, WA 981181710373824
  6. Sue Ikai, MDSeattle, WA 981181346395787
  7. Timothy Joos, MDSeattle, WA 981181740265735
  8. Son Nguyen, M.D.Seattle, WA 981181508927716

Common questions

What is Bob B. Thong, MD's NPI number?

Bob B. Thong, MD's National Provider Identifier (NPI) is 1538352802, issued on Aug 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Bob B. Thong, MD located?

The NPPES record lists a practice address at 1111 W Blaine St, Seattle, WA, 98119. Phone: (206) 659-7816. Providers update this record themselves, so call before visiting.

How can I verify Bob B. Thong, MD's license?

NPPES lists Washington license number MD60123029, 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 Bob B. Thong, MD prescribe under Medicare Part D?

In 2024, Bob B. Thong, MD had 1,900 Medicare Part D claims for 87 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.