Nelson Yamagata, M.D.
NPI 1821024852 · Neurology Physician · Templeton, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nelson Yamagata, M.D. is a Neurology Physician provider in Templeton, CA (NPI 1821024852).
Provider details
- NPI number
- 1821024852
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G67076 (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
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
1,707 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 617 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 401 | $84 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 282 | $165 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 172 | $201 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 65 | $90 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 335 | 95 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 214 | 53 |
| Levetiracetam | 210 | 43 |
| Duloxetine Hcl | 140 | 50 |
| Topiramate | 91 | 23 |
| Escitalopram Oxalate | 85 | 21 |
| Prednisone | 75 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (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
- 2006-06-23
- Last updated
- 2012-07-20
Frequently asked questions
- What is Nelson Yamagata's NPI number?
- Nelson Yamagata's National Provider Identifier (NPI) is 1821024852, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nelson Yamagata's specialty?
- Nelson Yamagata is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Nelson Yamagata located?
- Nelson Yamagata's practice location on file with NPPES is 225 Posada Ln, Templeton, CA 93465-4058.
- What is Nelson Yamagata's phone number?
- The practice phone number listed in the NPPES registry for Nelson Yamagata is (805) 434-0335.
- Does Nelson Yamagata accept Medicare?
- Nelson Yamagata is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nelson Yamagata's NPI active?
- Yes — Nelson Yamagata's NPI (1821024852) is active in the NPPES registry as of the last update on 2012-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.