Ernest Yamamoto, MD
NPI 1396730529 · Family Medicine Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ernest Yamamoto, MD is a Family Medicine Physician provider in Fresno, CA (NPI 1396730529).
Provider details
- NPI number
- 1396730529
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A87076 (CA)
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
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
1,113 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) |
|---|---|---|
| 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 | 351 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 336 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 197 | $92 |
| Assessment of Emotional Or Behavioral Problems96127 | 54 | $5 |
| Administration of Influenza Virus VaccineG0008 | 47 | $33 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 718 | 203 |
| Rosuvastatin Calcium | 301 | 76 |
| Amlodipine Besylate | 239 | 70 |
| Lisinopril | 193 | 59 |
| Metformin Hcl | 191 | 58 |
| Metoprolol Succinate | 185 | 52 |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,733 across 76 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
- 2005-09-14
- Last updated
- 2025-11-01
- Certified
- 2025-11-01
Frequently asked questions
- What is Ernest Yamamoto's NPI number?
- Ernest Yamamoto's National Provider Identifier (NPI) is 1396730529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ernest Yamamoto's specialty?
- Ernest Yamamoto is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ernest Yamamoto located?
- Ernest Yamamoto's practice location on file with NPPES is 1570 E Herndon Ave, Fresno, CA 93720-3303.
- What is Ernest Yamamoto's phone number?
- The practice phone number listed in the NPPES registry for Ernest Yamamoto is (559) 603-7400.
- Does Ernest Yamamoto accept Medicare?
- Ernest Yamamoto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ernest Yamamoto's NPI active?
- Yes — Ernest Yamamoto's NPI (1396730529) is active in the NPPES registry as of the last update on 2025-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.