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Dr. Kumiko E. Tanaka, MD
NPI1619396900PAC ID4284932153
- Medicare services, 2020
- 30
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 23
- Publications
- 4
- Hospital affiliations
- 2
- Practice address
- 30 Washington St, Wellesley Hills, MA 02481
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
About Women By Women - HOPD
Acute Care Hospital outpatient department · Wellesley Hills, Massachusetts
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Dr. Kumiko E. Tanaka is an OB-GYN in Wellesley Hills, Massachusetts
Dr. Tanaka practices at About Women By Women - HOPD in Wellesley Hills, Massachusetts.
Dr. Tanaka's NPI, 1619396900, was assigned on April 15, 2014. Dr. Tanaka graduated from University of Southern California Keck School of Medicine in 2014. Dr. Tanaka holds Massachusetts license 286473.
NPI and contact details
- NPI
- 1619396900NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284932153
- NPI enumeration date
- April 15, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kumiko E. Tanaka practices at About Women By Women - HOPD in Wellesley Hills, Massachusetts
Dr. Tanaka's primary practice is About Women By Women - HOPD, at 30 Washington St, Wellesley Hills, MA 02481.
- About Women By Women - HOPD30 Washington St, Wellesley Hills, MA 02481
Source: Dmand AI Affiliation Data
Dr. Kumiko E. Tanaka is affiliated with 6 sites of care and 7 medical groups
Dr. Tanaka's primary practice is About Women By Women - HOPD in Wellesley Hills, Massachusetts. Dr. Tanaka is also affiliated with Newton-Wellesley Hospital. The medical group on file is Steward Medical Group. Dmand AI also links Dr. Tanaka to 1 more hospital, 6 medical groups and 3 group practices and clinics, each named with a free account. Dr. Tanaka's employer is on file too: a hospital.
About Women By Women - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Kumiko E. Tanaka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tanaka practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| About Women By Women - HOPD | Available with a free account |
| +5 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kumiko E. Tanaka is one of 903 OB-GYNs in Massachusetts
Obstetrics and gynecology is Dr. Tanaka's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dmand AI has Dr. Tanaka's licenses on file in 2 states: Massachusetts and Rhode Island.
Specialties and state licenses
- Obstetrics and gynecology, MassachusettsPrimary
- Rhode Island license
OB-GYNs near Dr. Tanaka
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
903OB-GYNs in Massachusetts
7OB-GYNs in Wellesley Hills
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Kumiko E. Tanaka billed Medicare for 30 services in 2020
CMS data shows 30 Medicare services from Dr. Tanaka across 1 procedure code in 2020, all of them office visits, for 13 Medicare patients. Medicare paid $1,457 for them. Every service was in an office.
Medicare services, 202030
Medicare patients13
Paid by Medicare$1,457
Procedure codes1
Dr. Tanaka compared with the Massachusetts median for OB-GYNs, 2020
- Dr. Tanaka
- Massachusetts median
- Medicare services
- 30vs 5848% below
- Medicare patients
- 13vs 5677% below
- Part D claims
- 27vs 297% below
Medians across 803 OB-GYNs in Massachusetts with Dmand AI profiles that report each measure.
Dr. Tanaka's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tanaka and other OB-GYNs in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kumiko E. Tanaka treated 13 Medicare patients in 2024, average age 60
CMS counts 13 Medicare patients who saw Dr. Tanaka in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 0.66, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tanaka's median patient age at 35, with 100% women.
Medicare patients, 202413
Average age60
Average risk score0.66
Dr. Tanaka's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tanaka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kumiko E. Tanaka wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Tanaka wrote 23 Medicare Part D claims for 17 patients. 96% of them were for generic drugs. They cover 2 drugs, with $6,719 in total drug cost. In 2019, CMS named 12 claims across 1 drug.
Part D claims, 202423
Drugs named by CMS2
Total drug cost$6,719
Part D patients17
Dr. Tanaka's Part D claims by kind of drug, 2024
- Generic22 claims96%
- Brand-name and other1 claims4%
Dr. Tanaka's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 122020: 27125%
Drugs named by CMS: 2 in 2020, 1 in 2019.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Kumiko E. Tanaka takes part in Medicare
Dr. Tanaka accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Kumiko E. Tanaka has 4 publications on record
Dmand AI links 4 papers to Dr. Tanaka, published from 2011 to 2016. The most frequent topics are Lung Neoplasms. Dr. Tanaka has published most often in PLoS One. Dr. Tanaka's most frequent co-authors are David Alan Frank, MD, William Chun Hahn, MD, PhD and Richard L. Stevens, MD.
Papers4
Years published2011 to 2016
Dr. Tanaka's papers by year, 2011 to 2016
Topics Dr. Tanaka writes about most
- Lung Neoplasms
Dr. Tanaka's most frequent co-authors
- David Alan Frank, MD1 shared paper
- William Chun Hahn, MD, PhD1 shared paper
- Richard L. Stevens, MD1 shared paper
Recent publications by Dr. Tanaka
Cell Cycle ProteinsCell LineDNA-Binding Proteins
Proc Natl Acad Sci U S A
AdenocarcinomaAdenocarcinoma of LungAlleles
PLoS One
3' Untranslated RegionsCarcinoma, Non-Small-Cell LungCell Line, Tumor
See who Dr. Tanaka researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tanaka works with, so you can find a warm path to the right OB-GYNs.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Kumiko E. Tanaka received $1,025 in industry payments from 2019 to 2025
CMS Open Payments shows 51 general payments to Dr. Tanaka from 16 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $378.
General payments to Dr. Tanaka by program year, 2019 to 2025
Companies that paid Dr. Tanaka the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kumiko E. Tanaka graduated from University of Southern California Keck School of Medicine
Dr. Tanaka graduated from University of Southern California Keck School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kumiko E. Tanaka's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Kumiko E. Tanaka
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Kumiko E. Tanaka's NPI number?
Dr. Kumiko E. Tanaka's NPI number is 1619396900. It was assigned on April 15, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Kumiko E. Tanaka?
Dr. Kumiko E. Tanaka is an OB-GYN in Wellesley Hills, Massachusetts. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Kumiko E. Tanaka practice?
Dr. Tanaka practices at 30 Washington St, Wellesley Hills, MA 02481. Dr. Tanaka's primary practice is About Women By Women - HOPD in Wellesley Hills, Massachusetts. Dmand AI also links Dr. Tanaka to 1 hospital, 6 medical groups and 3 group practices and clinics.
What is Dr. Kumiko E. Tanaka's medical license number?
Dr. Tanaka holds Massachusetts license 286473, one of the licenses on file in 2 states.
Which states has Dr. Kumiko E. Tanaka been licensed in?
Dmand AI has state licenses on file for Dr. Tanaka in Massachusetts and Rhode Island.
Which hospitals is Dr. Kumiko E. Tanaka affiliated with?
Dr. Tanaka is affiliated with Newton-Wellesley Hospital. Dmand AI links Dr. Tanaka to 1 more hospital.
What medical group is Dr. Kumiko E. Tanaka part of?
Dr. Tanaka is linked to Steward Medical Group. Dmand AI links Dr. Tanaka to 6 more medical groups.
Does Dr. Kumiko E. Tanaka accept Medicare?
Yes. CMS data shows Dr. Tanaka billed Medicare for 30 services in 2020, and Dr. Tanaka accepts Medicare assignment.
How many Medicare patients does Dr. Kumiko E. Tanaka see?
CMS counts 13 Medicare patients who saw Dr. Tanaka in 2024, with an average age of 60.
What services does Dr. Kumiko E. Tanaka bill to Medicare?
In 2020, Dr. Tanaka's most billed Medicare services were office visit, established patient (99213).
Show 6 more questionsShow fewer questions
Where did Dr. Kumiko E. Tanaka go to medical school?
Dr. Tanaka graduated from University of Southern California Keck School of Medicine in 2014.
What drugs does Dr. Kumiko E. Tanaka prescribe most?
In 2020 Medicare Part D data, Dr. Tanaka's most prescribed drugs by claims were Premarin and Ibuprofen.
Has Dr. Kumiko E. Tanaka received payments from drug or device companies?
CMS Open Payments shows $1,025 in general payments to Dr. Tanaka from 16 companies from 2019 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Kumiko E. Tanaka been practicing?
Dr. Tanaka graduated from medical school in 2014, 12 years ago.
Does Dr. Kumiko E. Tanaka do research?
Dmand AI links 4 publications to Dr. Tanaka, published from 2011 to 2016.
Who does Dr. Kumiko E. Tanaka publish with?
Dr. Tanaka's most frequent co-authors are David Alan Frank, MD (1 shared paper), William Chun Hahn, MD, PhD (1 shared paper) and Richard L. Stevens, MD (1 shared paper).
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