Ken Arakawa, M.D.
NPI 1558334888 · Specialist · Honolulu, HI
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ken Arakawa, M.D. is a Specialist provider in Honolulu, HI (NPI 1558334888).
Provider details
- NPI number
- 1558334888
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD5877 (HI)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
19,817 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 2,516 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 2,320 | $127 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,116 | $8 |
| Bilirubin Level, Total82247 | 1,054 | $5 |
| Blood Creatinine Level82565 | 1,053 | $5 |
| Blood Potassium Level84132 | 1,053 | $5 |
| Blood Sodium Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 1,247 | 298 |
| Celecoxib | 1,009 | 222 |
| Methotrexate Sodiumbrand: Methotrexate | 964 | 243 |
| Meloxicam | 896 | 219 |
| Hydroxychloroquine Sulfate | 604 | 161 |
| Gabapentin | 451 | 101 |
| Colchicine | 263 | 76 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$611 across 51 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
Registry dates
- Enumerated
- 2006-02-08
- Last updated
- 2016-06-02
Frequently asked questions
- What is Ken Arakawa's NPI number?
- Ken Arakawa's National Provider Identifier (NPI) is 1558334888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ken Arakawa's specialty?
- Ken Arakawa is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Ken Arakawa located?
- Ken Arakawa's practice location on file with NPPES is 1329 Lusitana St Ste 206, Honolulu, HI 96813-2411.
- What is Ken Arakawa's phone number?
- The practice phone number listed in the NPPES registry for Ken Arakawa is (808) 528-3888.
- Does Ken Arakawa accept Medicare?
- Ken Arakawa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ken Arakawa's NPI active?
- Yes — Ken Arakawa's NPI (1558334888) is active in the NPPES registry as of the last update on 2016-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.