NPPES file of Aug 9, 2026

Ralf Voshtina, DO

Clinical Neurophysiology Physician · Stanford, CA

Ralf Voshtina, DO is a clinical neurophysiology physician with a practice address in Stanford, California, and NPI 1558948281, issued on Mar 27, 2021. Check the license (California 20A24081, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558948281
Name
Ralf Voshtina
Credential
DO
Primary taxonomy
Clinical Neurophysiology Physician 2084N0600X
License numbers
20A24081 CA
125.078295 IL
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Mar 27, 2021
Record last updated
Jul 2, 2026
Medicare enrollment
Enrolled (PECOS I20260501002217); may accept Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 2021
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Ralf Voshtina in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A24081
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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89% fewer Medicare Part D claims than the average clinical neurophysiology physician in 2024

169 Medicare Part D claims for 42 beneficiaries, against an average of 1,586 among the 319 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Ralf Voshtina169
  2. Specialty average1,586

Most prescribed

  1. Memantine Hcl27 claims
  2. Atorvastatin Calcium24 claims
  3. Amlodipine Besylate15 claims
  4. Levetiracetam11 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.

Ralf Voshtina among 71 clinical neurophysiology physician records in California

Ralf Voshtina, DO is one of 71 clinical neurophysiology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 97% of them.

  • NPI issued2021 · 97% of these records are older, 0% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2021 · median 2007 among the 49 with a school on file
  • Record last updated2026 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0600X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Neurophysiology Physician providers in California

There are 71 clinical neurophysiology physician records in California.

The 8 clinical neurophysiology physician records with the nearest ZIP codes

  1. Helen Bronte-Stewart, MDStanford, CA 943051295786804
  2. Sungho Cho, MDStanford, CA 943051932152360
  3. Safwan Jaradeh, MDStanford, CA 943051730130576
  4. Maya Katz, MDStanford, CA 943051427218304
  5. James Langston, MDStanford, CA 943051659306371
  6. Leslie Lee, M.D.Stanford, CA 943051932115219
  7. Christopher Lock, MDStanford, CA 943051427205061
  8. Jaime Lopez, MDStanford, CA 943051033288014

Common questions

What is Ralf Voshtina, DO's NPI number?

Ralf Voshtina, DO's National Provider Identifier (NPI) is 1558948281, issued on Mar 27, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Ralf Voshtina, DO located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Ralf Voshtina, DO's license?

NPPES lists California license number 20A24081, 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 Ralf Voshtina, DO prescribe under Medicare Part D?

In 2024, Ralf Voshtina, DO had 169 Medicare Part D claims for 42 beneficiaries; the average among clinical neurophysiology physician prescribers was 1,586. Part D covers Medicare prescriptions only.

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.