Keiichi Kobayashi, M.D.
NPI 1134150089 · Internal Medicine Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keiichi Kobayashi, M.D. is a Internal Medicine Physician provider in Honolulu, HI (NPI 1134150089).
Provider details
- NPI number
- 1134150089
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 7904 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
421 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 273 | $90 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 51 | $125 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 32 | $19 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 26 | $9 |
| Hemoglobin A1c Level83036 | 21 | $9 |
| Administration of Influenza Virus VaccineG0008 | 18 | $34 |
Typical Medicare-allowed amounts for these services range $9–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 402 | 138 |
| Rosuvastatin Calcium | 250 | 86 |
| Amlodipine Besylate | 245 | 88 |
| Alendronate Sodium | 226 | 71 |
| Olmesartan Medoxomil | 203 | 69 |
| Levothyroxine Sodium | 184 | 55 |
| Olmesartan/Hydrochlorothiazidebrand: Olmesartan-Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$195 across 5 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
- 2006-07-06
- Last updated
- 2010-09-01
Frequently asked questions
- What is Keiichi Kobayashi's NPI number?
- Keiichi Kobayashi's National Provider Identifier (NPI) is 1134150089, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keiichi Kobayashi's specialty?
- Keiichi Kobayashi is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Keiichi Kobayashi located?
- Keiichi Kobayashi's practice location on file with NPPES is 1441 Kapiolani Blvd. #2000, Honolulu, HI 96814.
- What is Keiichi Kobayashi's phone number?
- The practice phone number listed in the NPPES registry for Keiichi Kobayashi is (808) 945-3719.
- Does Keiichi Kobayashi accept Medicare?
- Keiichi Kobayashi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keiichi Kobayashi's NPI active?
- Yes — Keiichi Kobayashi's NPI (1134150089) is active in the NPPES registry as of the last update on 2010-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.