NPPES file of Aug 9, 2026

Michael Oliver Zamora Roxas, MD

Internal Medicine Physician · Tacoma, WA

Michael Oliver Zamora Roxas, MD is an internal medicine physician with a practice address in Tacoma, Washington, and NPI 1700140266, issued on Jun 29, 2012. Check the license (Washington MD60813515, 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
1700140266
Name
Michael Oliver Zamora Roxas
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD60813515 WA
42230 IA
4301100570 MI
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
Jun 29, 2012
Record last updated
Dec 9, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
2105929 WA
Medicare enrollment
Enrolled (PECOS I20180820003042); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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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.

  1. Emily Benson, ARNPAdult Health Nurse Practitioner1356783385
  2. Todd Chappell, DPMPodiatrist1548675192
  3. Paul Cho, DO, MHAPediatrics Physician1427639681
  4. Teera Crawford, M.D.Internal Medicine Physician1689107732
  5. Megan Durkin, ARNPGerontology Nurse Practitioner1306255948
  6. Bilal Fazal Mehmood, MDInternal Medicine Physician1356090666

Verify Michael Oliver Zamora Roxas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60813515
    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.

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4.3 times the Medicare Part D claims of the average internal medicine physician in 2024

13,625 Medicare Part D claims for 591 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. 608 claims were for opioids.

  1. Michael Oliver Roxas13,625
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium644 claims
  2. Rosuvastatin Calcium380 claims
  3. Gabapentin338 claims
  4. Amlodipine Besylate307 claims
  5. Losartan Potassium307 claims
  6. Levothyroxine Sodium300 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. Franciscan Medical GroupTacoma, WA

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

Michael Oliver Zamora Roxas among 3,079 internal medicine physician records in Washington

Michael Oliver Zamora Roxas, 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 2012, is newer than 68% of them.

  • NPI issued2012 · 68% of these records are older, 29% 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 updated2020 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Richard Bradford, MDTacoma, WA 984051285695379
  2. William Brand, MDTacoma, WA 984051093744716
  3. James Buttitta, MDTacoma, WA 984051376572214
  4. Imelda De Villa, M.D.Tacoma, WA 984051457399370
  5. Ellen Hardin, MDTacoma, WA 984051730112921
  6. Reid Holtzclaw-Swan, MDTacoma, WA 984051992782288
  7. Jeffrey Hooper, D.O.Tacoma, WA 984051083653539
  8. William Lee, MDTacoma, WA 984051285626325

Common questions

What is Michael Oliver Zamora Roxas, MD's NPI number?

Michael Oliver Zamora Roxas, MD's National Provider Identifier (NPI) is 1700140266, issued on Jun 29, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Michael Oliver Zamora Roxas, 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 Michael Oliver Zamora Roxas, MD's license?

NPPES lists Washington license number MD60813515, 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 Michael Oliver Zamora Roxas, MD prescribe under Medicare Part D?

In 2024, Michael Oliver Zamora Roxas, MD had 13,625 Medicare Part D claims for 591 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.