Margret Diane Zager, MD
Internal Medicine Physician · Tacoma, WA
Margret Diane Zager, MD is an internal medicine physician with a practice address in Tacoma, Washington, and NPI 1144726597, issued on Apr 4, 2018. Check the license (Washington MD61080869, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Margret Diane Zager
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD61080869 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1608 S J St FL 3, Tacoma, WA 98405
- Phone
- (253) 274-7503
- Enumerated
- Apr 4, 2018
- Record last updated
- Feb 19, 2024
- Fax
- (253) 274-7993
- Medicaid ID
- 2012654 WA
- Medicare enrollment
- Enrolled (PECOS I20210526002681); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 1608 S J St FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Benson, ARNPAdult Health Nurse Practitioner1356783385
- Todd Chappell, DPMPodiatrist1548675192
- Paul Cho, DO, MHAPediatrics Physician1427639681
- Teera Crawford, M.D.Internal Medicine Physician1689107732
- Megan Durkin, ARNPGerontology Nurse Practitioner1306255948
- Bilal Fazal Mehmood, MDInternal Medicine Physician1356090666
Verify Margret Diane Zager in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61080869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,445 Medicare Part D claims for 268 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 109 claims were for opioids.
Most prescribed
- Atorvastatin Calcium140 claims
- Amlodipine Besylate96 claims
- Gabapentin80 claims
- Losartan Potassium74 claims
- Albuterol Sulfate Hfa73 claims
- Lisinopril65 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): 93.1 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).
Bills Medicare through one group practice
- Franciscan Medical GroupTacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margret Diane Zager among 3,079 internal medicine physician records in Washington
Margret Diane Zager, 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 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2018 · median 2006 among the 1,852 with a school on file
- Record last updated2024 · 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).
262 internal medicine physician records list a practice address in Tacoma
They are 262 of the 13,715 NPPES records with a practice address in Tacoma, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Tacoma → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Richard Bradford, MDTacoma, WA 984051285695379
- William Brand, MDTacoma, WA 984051093744716
- James Buttitta, MDTacoma, WA 984051376572214
- Imelda De Villa, M.D.Tacoma, WA 984051457399370
- Ellen Hardin, MDTacoma, WA 984051730112921
- Reid Holtzclaw-Swan, MDTacoma, WA 984051992782288
- Jeffrey Hooper, D.O.Tacoma, WA 984051083653539
- William Lee, MDTacoma, WA 984051285626325
Common questions
What is Margret Diane Zager, MD's NPI number?
Margret Diane Zager, MD's National Provider Identifier (NPI) is 1144726597, issued on Apr 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Margret Diane Zager, MD located?
The NPPES record lists a practice address at 1608 S J St FL 3, Tacoma, WA, 98405. Phone: (253) 274-7503. Providers update this record themselves, so call before visiting.
How can I verify Margret Diane Zager, MD's license?
NPPES lists Washington license number MD61080869, 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 Margret Diane Zager, MD prescribe under Medicare Part D?
In 2024, Margret Diane Zager, MD had 2,445 Medicare Part D claims for 268 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Margret Diane Zager, MD's MIPS final score?
The 2023 MIPS final score is 93.1 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.