Dr. Mark H. Takemura, MD
- Medicare services, 2023
- 282
- Part D claims, 2024
- 30
- Industry payments
- $5,918
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 20911 Earl St Suite 220 Suite 220, Torrance, CA 90503-4353
- Practice phone
- Call (310) 540-9600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Providence Little Company Of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St)
Multi-specialty group site · Torrance, California
Find Dr. Takemura's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark H. Takemura is a gastroenterologist in Torrance, California
Dr. Takemura practices at Providence Little Company Of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St) in Torrance, California.
Dr. Takemura's NPI, 1487721189, was assigned on November 29, 2006. Dr. Takemura holds California license G58448.
- NPI
- 1487721189NPI Registry (opens in a new tab)
- NPI enumeration date
- November 29, 2006
- NPI status
- Active
- Practice phone
- (310) 540-9600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark H. Takemura practices at 2 locations in Torrance, California
Dr. Takemura's primary practice is Providence Little Company of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St), at 20911 Earl St Suite 220 Suite 220, Torrance, CA 90503-4353. The practice phone is (310) 540-9600. The NPI Registry lists Dr. Takemura's practice address as 3330 Lomita Blvd, Torrance, CA 90505.
- Providence Little Company of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St)Primary20911 Earl St Suite 220 Suite 220, Torrance, CA 90503-4353Phone(310) 540-9600
- NPI Registry address3330 Lomita Blvd, Torrance, CA 90505 · Los Angeles CountyPhone(310) 214-7236
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Mark H. Takemura is affiliated with 2 sites of care and 2 medical groups
Dr. Takemura's primary practice is Providence Little Company Of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St) in Torrance, California. The medical group on file is Providence Medical Institute. Dmand AI also links Dr. Takemura to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Mark H. Takemura's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Takemura practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Little Company Of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St) | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark H. Takemura is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Takemura's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Takemura is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Gastroenterologists near Dr. Takemura
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark H. Takemura billed Medicare for 282 services in 2023
CMS data shows 282 Medicare services from Dr. Takemura across 6 procedure codes in 2023. Medicare paid $27,140 for them.
Dr. Takemura's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3932023: 16359%
- Surgery
- 2022: 2572023: 10260%
- Other services
- 2022: 522023: 1767%
Where Dr. Takemura's Medicare services took place, 2023
- In an office16358%
- In a facility11942%
Dr. Takemura compared with the California median for gastroenterologists, 2023
- Dr. Takemura
- California median
- Medicare services
- 282vs 58652% below
- Part D claims
- 353vs 3807% below
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Takemura's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Takemura?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Takemura and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark H. Takemura's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Takemura's median patient age at 71, with 38% women.
Dr. Takemura's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women38%
- Men63%
Source: Dmand AI Patient Panel Data
Dr. Mark H. Takemura wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Takemura wrote 30 Medicare Part D claims for 18 patients. 97% of them were for generic drugs. They cover 4 drugs, with $5,945 in total drug cost. In 2022, CMS named 549 claims across 8 drugs.
Dr. Takemura's Part D claims by kind of drug, 2024
- Generic29 claims97%
- Brand-name and other1 claims3%
Dr. Takemura's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 5492023: 35336%
Drugs named by CMS: 4 in 2023, 8 in 2022.
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
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Dr. Mark H. Takemura received $5,918 in industry payments from 2016 to 2021
CMS Open Payments shows 95 general payments to Dr. Takemura from 17 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 99% of the total. Ironwood Pharmaceuticals, Inc paid the most, $3,585.
General payments to Dr. Takemura by program year, 2016 to 2021
General payments to Dr. Takemura by kind, 2016 to 2021
- Food and beverage$5,88899%
- Consulting fees$160%
- Education$150%
Companies that paid Dr. Takemura the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark H. Takemura'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mark H. Takemura
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. Mark H. Takemura's NPI number?
Dr. Mark H. Takemura's NPI number is 1487721189. It was assigned on November 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark H. Takemura?
Dr. Mark H. Takemura is a gastroenterologist in Torrance, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mark H. Takemura practice?
Dr. Takemura practices at 20911 Earl St Suite 220 Suite 220, Torrance, CA 90503-4353. Dr. Takemura also practices at 3330 Lomita Blvd, Torrance, CA 90505. Dr. Takemura's primary practice is Providence Little Company Of Mary Medical Institute - OB/GYN & Women's Health - Torrance (Earl St) in Torrance, California. Dmand AI also links Dr. Takemura to 1 group practice or clinic and 1 medical group.
What is Dr. Mark H. Takemura's office phone number?
The practice phone on file for Dr. Takemura is (310) 540-9600.
What is Dr. Mark H. Takemura's medical license number?
Dr. Takemura holds California license G58448.
What medical group is Dr. Mark H. Takemura part of?
Dr. Takemura is linked to Providence Medical Institute. Dmand AI links Dr. Takemura to 1 more medical group.
Does Dr. Mark H. Takemura accept Medicare?
Yes. CMS data shows Dr. Takemura billed Medicare for 282 services in 2023.
What services does Dr. Mark H. Takemura bill to Medicare?
In 2023, Dr. Takemura's most billed Medicare services were office visit, established patient (99213), surgery: digestive system (45380) and surgery: digestive system (43239).
What drugs does Dr. Mark H. Takemura prescribe most?
In 2023 Medicare Part D data, Dr. Takemura's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Famotidine.
Has Dr. Mark H. Takemura received payments from drug or device companies?
CMS Open Payments shows $5,918 in general payments to Dr. Takemura from 17 companies from 2016 to 2021. The largest total came from Ironwood Pharmaceuticals, Inc.
How long has Dr. Mark H. Takemura been practicing?
Dr. Takemura graduated from medical school in 1985, 41 years ago.
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