Nelson T. Yamagata, M.D.
Neurology Physician · Templeton, CA
Nelson T. Yamagata, M.D. is a neurology physician with a practice address in Templeton, California, and NPI 1821024852, issued on Jun 23, 2006. Check the license (California G67076, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nelson T. Yamagata
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G67076 CA
Self-reported in NPPES; status is on the state search - Practice location
- 225 Posada LN, Templeton, CA 93465
- Phone
- (805) 434-0335
- Enumerated
- Jun 23, 2006
- Record last updated
- Jul 20, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 434-0421
- Medicare enrollment
- Enrolled (PECOS I20090109000120); may accept Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 225 Posada LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Craig Beuttler, D.C., F.I.A.M.A.Chiropractor1093811382
Verify Nelson T. Yamagata in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67076Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% more Medicare Part D claims than the average neurology physician in 2024
2,730 Medicare Part D claims for 415 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 43 claims were for opioids.
Most prescribed
- Gabapentin335 claims
- Carbidopa-Levodopa214 claims
- Levetiracetam210 claims
- Duloxetine Hcl140 claims
- Topiramate91 claims
- Escitalopram Oxalate85 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.42
1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- David B. HammerTempleton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
Other neurology physician records in California
- Venkat Raghav Aachi, MDThousand Oaks, CA1740640051
- John Aalbers, M.D.San Diego, CA1942262431
- Kafia Abbasi, M.D.French Camp, CA1215114897
- Puya Abbassi, D.O.San Jose, CA1831695428
- Ahmed Abdelhak, MB CHBSan Francisco, CA1053013748
- Diana Abdulrahman, M.D.Pomona, CA1518276880
- Hadi Abou El Hassan, MDLos Angeles, CA1053995720
- John Paul Aboubechara, MD, PHDPalo Alto, CA1205461803
- Saheil AboutalibLong Beach, CA1548551112
- Justin Abraham, M.D., M.B.A.Santa Barbara, CA1225322522
Common questions
What is Nelson T. Yamagata, M.D.'s NPI number?
Nelson T. Yamagata, M.D.'s National Provider Identifier (NPI) is 1821024852, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nelson T. Yamagata, M.D. located?
The NPPES record lists a practice address at 225 Posada LN, Templeton, CA, 93465. Phone: (805) 434-0335. Providers update this record themselves, so call before visiting.
How can I verify Nelson T. Yamagata, M.D.'s license?
NPPES lists California license number G67076, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nelson T. Yamagata, M.D. prescribe under Medicare Part D?
In 2024, Nelson T. Yamagata, M.D. had 2,730 Medicare Part D claims for 415 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Nelson T. Yamagata, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.