David Benjamin Liang, M.D.
Gastroenterology Physician · Edmonds, WA
David Benjamin Liang, M.D. is a gastroenterology physician with a practice address in Edmonds, Washington, and NPI 1619178027, issued on May 31, 2007. Check the license (Washington MD60197486, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- David Benjamin Liang
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD60197486 WA
14761 NV
Self-reported in NPPES; status is on the state search - Practice location
- 21600 Highway 99 Ste 260, Edmonds, WA 98026
- Phone
- (425) 774-2650
- Enumerated
- May 31, 2007
- Record last updated
- Oct 11, 2024
- Fax
- (425) 774-2643
- Medicaid ID
- 2048950 WA
- Medicare enrollment
- Enrolled (PECOS I20151116002361); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2004
- Entity
- Type 1 · individual
Also registered at 21600 Highway 99 Ste 260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Crystal Bernstein, M.D.Gastroenterology Physician1326019167
- Kimberly Boyce, PA-CPhysician Assistant1447464094
- Victoria Gasparyan, ARNPFamily Nurse Practitioner1912268004
- Michelle Goodman, ARNPNurse Practitioner1093899478
- Klaus Mergener, M.D.Gastroenterology Physician1578537031
Verify David Benjamin Liang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60197486Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average gastroenterology physician in 2024
1,204 Medicare Part D claims for 421 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Omeprazole287 claims
- Pantoprazole Sodium213 claims
- Sod Sulf-Potass Sulf-Mag Sulf98 claims
- Peg-3350 And Electrolytes54 claims
- Gavilyte-G46 claims
- Mesalamine43 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 MIPS final score for 2023 (Medicare payment program): 83.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $23.52
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- PeacehealthBellingham, WA
- Yakima Valley Memorial PhysiciansYakima, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Washington
There are 533 gastroenterology physician records in Washington.
Other gastroenterology physician records in Washington
- Abimbola AdikePoulsbo, WA1821357112
- Abhishek Agarwal, MDPuyallup, WA1801010053
- Gaurav Aggarwal, M.D.Bellevue, WA1902083587
- Sanjay Agrawal, M.D.Tacoma, WA1710912894
- Ehsaan Akhtar, MDKirkland, WA1710255591
- Oviea Akpotaire, MDSeattle, WA1649632936
- Steven Alabaster, MDTacoma, WA1801869623
- Sankar Alagugurusamy, MDMount Vernon, WA1093970576
- Hawwa Alao, MDSeattle, WA1376774752
- Nouredin Alebouyeh, M.D.Seattle, WA1144454711
Common questions
What is David Benjamin Liang, M.D.'s NPI number?
David Benjamin Liang, M.D.'s National Provider Identifier (NPI) is 1619178027, issued on May 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Benjamin Liang, M.D. located?
The NPPES record lists a practice address at 21600 Highway 99 Ste 260, Edmonds, WA, 98026. Phone: (425) 774-2650. Providers update this record themselves, so call before visiting.
How can I verify David Benjamin Liang, M.D.'s license?
NPPES lists Washington license number MD60197486, 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 David Benjamin Liang, M.D. prescribe under Medicare Part D?
In 2024, David Benjamin Liang, M.D. had 1,204 Medicare Part D claims for 421 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is David Benjamin Liang, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.5 of 100. 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.