Maribonn Tiangson
Internal Medicine Physician · Vancouver, WA
Maribonn Tiangson is an internal medicine physician with a practice address in Vancouver, Washington, and NPI 1982157996, issued on Jul 26, 2016. Check the license (Washington MD61334513, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Maribonn Tiangson
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD61334513 WA
125.068456 IL
01082487A IN
Self-reported in NPPES; status is on the state search - Practice location
- 14406 NE 20TH Ave, Vancouver, WA 98686
- Phone
- (800) 813-2000
- Enumerated
- Jul 26, 2016
- Record last updated
- Oct 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20221206001842); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 14406 NE 20TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shaanti Abbruzzese, CNMAdvanced Practice Midwife1063577815
- Christina Adams, RDADental Assistant1639422645
- Genise Albertson, RDADental Assistant1982949830
- Camilla Albrecht, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1568645489
- Joseph Alsberge, M.D.Ophthalmology Physician1740623792
- Marcus Asby, M.D.Internal Medicine Physician1104112697
Verify Maribonn Tiangson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61334513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average internal medicine physician in 2024
4,499 Medicare Part D claims for 733 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 340 claims were for opioids.
Most prescribed
- Atorvastatin Calcium228 claims
- Levothyroxine Sodium165 claims
- Losartan Potassium150 claims
- Lisinopril149 claims
- Amlodipine Besylate147 claims
- Rosuvastatin Calcium143 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
- Kaiser Foundation Health Plan OF The NorthwestLongview, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maribonn Tiangson among 3,079 internal medicine physician records in Washington
Maribonn Tiangson 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2009 · 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).
200 internal medicine physician records list a practice address in Vancouver
They are 200 of the 10,772 NPPES records with a practice address in Vancouver, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Vancouver → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lisa Alberts, M.D.Vancouver, WA 986861144289125
- Robert Davis, MDVancouver, WA 986861033187679
- Guillermo Gow-Lee, M.D.Vancouver, WA 986861700994324
- Mike Lin, MDVancouver, WA 986861558474569
- Vivek Murari, MDVancouver, WA 986861487642591
- Kalpana Narapasetty, M.DVancouver, WA 986861548465149
- Vu Ngo, M.D.Vancouver, WA 986861982717682
- Tatiana Peterson, MDVancouver, WA 986861114070455
Common questions
What is Maribonn Tiangson's NPI number?
Maribonn Tiangson's National Provider Identifier (NPI) is 1982157996, issued on Jul 26, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Maribonn Tiangson located?
The NPPES record lists a practice address at 14406 NE 20TH Ave, Vancouver, WA, 98686. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Maribonn Tiangson's license?
NPPES lists Washington license number MD61334513, 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 Maribonn Tiangson prescribe under Medicare Part D?
In 2024, Maribonn Tiangson had 4,499 Medicare Part D claims for 733 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.