Kumiko E. Tanaka, MD
Obstetrics & Gynecology Physician · Wellesley, MA
Kumiko E. Tanaka, MD is an obstetrics & gynecology physician with a practice address in Wellesley, Massachusetts, and NPI 1619396900, issued on Apr 15, 2014. Check the license (Massachusetts 286473, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kumiko E. Tanaka
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 286473 MA
MD16361 RI
Self-reported in NPPES; status is on the state search - Practice location
- 30 Washington St, Wellesley, MA 02481
- Phone
- (781) 263-9110
- Enumerated
- Apr 15, 2014
- Record last updated
- Jul 7, 2025
- Fax
- (781) 263-9125
- Medicare enrollment
- Enrolled (PECOS I20210622001049); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 30 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Bottom, M.S CCC-SLPSpeech-Language Pathologist1790156438
- Megan BunnellObstetrics & Gynecology Physician1144789470
- Molly Clark, M.D.Specialist1043223324
- Charlotte Crane, M.D.Obstetrics & Gynecology Physician1164885596
- Sarah Cryer, MDObstetrics & Gynecology Physician1558725671
- Kara Deaver Chang, M.D.Specialist1013941350
Verify Kumiko E. Tanaka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 286473Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
23 Medicare Part D claims for 17 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $32.10
2 payments; by number, the most common kind was food and beverage; the largest payer was CooperSurgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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 one group practice
- About Women BY Women A Professional CorporationWellesley, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kumiko E. Tanaka among 1,127 obstetrics & gynecology physician records in Massachusetts
Kumiko E. Tanaka, MD is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2014 · median 2004 among the 715 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 obstetrics & gynecology physician records list a practice address in Wellesley
They are 18 of the 1,117 NPPES records with a practice address in Wellesley, and 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in Wellesley → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Sibel Bessim, MDWellesley, MA 024811528165685
- Anne Dixon, MDWellesley, MA 024811205881794
- Martha Ehrmann, M.D.Wellesley Hills, MA 024811639145428
- Maria Fradinho, MDWellesley, MA 024811184850703
- Ruth Fretts, MDWellesley, MA 024811275587719
- Julia Logan, M.D.Wellesley, MA 024811053343590
- Sharon Margulies, M.D.Wellesley, MA 024811144268434
- Emily Mather, CNMWellesley Hills, MA 024811134229552
Common questions
What is Kumiko E. Tanaka, MD's NPI number?
Kumiko E. Tanaka, MD's National Provider Identifier (NPI) is 1619396900, issued on Apr 15, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Kumiko E. Tanaka, MD located?
The NPPES record lists a practice address at 30 Washington St, Wellesley, MA, 02481. Phone: (781) 263-9110. Providers update this record themselves, so call before visiting.
How can I verify Kumiko E. Tanaka, MD's license?
NPPES lists Massachusetts license number 286473, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kumiko E. Tanaka, MD prescribe under Medicare Part D?
In 2024, Kumiko E. Tanaka, MD had 23 Medicare Part D claims for 17 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.