Ryuma Tanaka, M.D.
NPI 1184912230 · Pediatric Hematology & Oncology Physician · Columbus, OH
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryuma Tanaka, M.D. is a Pediatric Hematology & Oncology Physician provider in Columbus, OH (NPI 1184912230).
Provider details
- NPI number
- 1184912230
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35.151700 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
8 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,172 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (7)
- 4439 State Route 159Chillicothe, OH 45601-8207Phone: (614) 722-2000
- 6435 E Broad StColumbus, OH 43213-1507Phone: (614) 722-2000
- 7853 Pacer DrDelaware, OH 43015-7571Phone: (614) 722-6200
- 5665 Venture DrDublin, OH 43017-2159Phone: (614) 722-2000
- 536 S Trimble RdMansfield, OH 44906-3418Phone: (614) 722-2000
- 536 S Trimble RdMansfield, OH 44906-3418Phone: (614) 722-2555
- 740 Adair AveZanesville, OH 43701-2838Phone: (614) 722-2000
Registry dates
- Enumerated
- 2011-07-11
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Ryuma Tanaka's NPI number?
- Ryuma Tanaka's National Provider Identifier (NPI) is 1184912230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryuma Tanaka's specialty?
- Ryuma Tanaka is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryuma Tanaka located?
- Ryuma Tanaka's practice location on file with NPPES is 700 Childrens Dr, Columbus, OH 43205-2664.
- What is Ryuma Tanaka's phone number?
- The practice phone number listed in the NPPES registry for Ryuma Tanaka is (614) 722-2000.
- Does Ryuma Tanaka accept Medicare?
- Ryuma Tanaka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryuma Tanaka's NPI active?
- Yes — Ryuma Tanaka's NPI (1184912230) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.