Steven Koga, M.D.
NPI 1144275512 · Internal Medicine Physician · Caldwell, ID
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Koga, M.D. is a Internal Medicine Physician provider in Caldwell, ID (NPI 1144275512).
Provider details
- NPI number
- 1144275512
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M6779 (ID)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
768 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 282 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 199 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 111 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $86 |
| Hemoglobin A1c Level83036 | 37 | $10 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 131 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 718 | 154 |
| Losartan Potassium | 438 | 99 |
| Atorvastatin Calcium | 418 | 112 |
| Lisinopril | 393 | 95 |
| Gabapentin | 342 | 82 |
| Amlodipine Besylate | 341 | 80 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-24
- Last updated
- 2022-01-28
- Certified
- 2020-11-27
Frequently asked questions
- What is Steven Koga's NPI number?
- Steven Koga's National Provider Identifier (NPI) is 1144275512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Koga's specialty?
- Steven Koga is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Koga located?
- Steven Koga's practice location on file with NPPES is 1906 Fairview Ave Ste 230, Caldwell, ID 83605-5432.
- What is Steven Koga's phone number?
- The practice phone number listed in the NPPES registry for Steven Koga is (208) 459-4667.
- Does Steven Koga accept Medicare?
- Steven Koga is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Koga's NPI active?
- Yes — Steven Koga's NPI (1144275512) is active in the NPPES registry as of the last update on 2022-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.