Tomoko Tagawa, M.D.
Internal Medicine Physician · Duarte, CA
Tomoko Tagawa, M.D. is an internal medicine physician with a practice address in Duarte, California, and NPI 1285825414, issued on Aug 5, 2007. Check the license (California A98428, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tomoko Tagawa
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A98428 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 East Duarte RD, Duarte, CA 91010
- Phone
- (626) 471-9200
- Enumerated
- Aug 5, 2007
- Record last updated
- Oct 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110818000769); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1500 East Duarte RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Laleh Melstrom, MDSurgery Physician1811153893
- Christina Pierce, NPAdult Health Nurse Practitioner1831385251
- Traci Young, N.P.Adult Health Nurse Practitioner1720254493
Verify Tomoko Tagawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A98428Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,433 Medicare Part D claims for 258 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 48 claims were for opioids.
Most prescribed
- Anastrozole181 claims
- Acyclovir88 claims
- Prednisone81 claims
- Dexamethasone79 claims
- Abiraterone Acetate69 claims
- Ondansetron Odt57 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
- Southern California Permanente Medical GroupBellflower, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tomoko Tagawa among 17,696 internal medicine physician records in California
Tomoko Tagawa, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Duarte → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Karam Ashouri, MDDuarte, CA 910101518616200
- Houman Badrzadeh, DODuarte, CA 910101295380517
- Stan Mathioulakis, MDDuarte, CA 910101912080847
- Ulin Sargeant, M.D., MPHDuarte, CA 910101992878151
- Tyler Seto, M.D.Duarte, CA 910101669579579
- Indravadan Shah, MDDuarte, CA 910101932126497
- Koral Shah, MDDuarte, CA 910101124672613
- Mohammed Siddiqui, MDDuarte, CA 910101861056251
Common questions
What is Tomoko Tagawa, M.D.'s NPI number?
Tomoko Tagawa, M.D.'s National Provider Identifier (NPI) is 1285825414, issued on Aug 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tomoko Tagawa, M.D. located?
The NPPES record lists a practice address at 1500 East Duarte RD, Duarte, CA, 91010. Phone: (626) 471-9200. Providers update this record themselves, so call before visiting.
How can I verify Tomoko Tagawa, M.D.'s license?
NPPES lists California license number A98428, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tomoko Tagawa, M.D. prescribe under Medicare Part D?
In 2024, Tomoko Tagawa, M.D. had 1,433 Medicare Part D claims for 258 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.