Erik Richard Ensrud, MD
Neurology Physician · Stanford, CA
Erik Richard Ensrud, MD is a neurology physician with a practice address in Stanford, California, and NPI 1982658738, issued on May 19, 2006. Check the license (California C207741, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erik Richard Ensrud
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- C207741 CA
2021049178 MO
MD181780 OR
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- May 19, 2006
- Record last updated
- Mar 17, 2026
- Medicaid IDs
- 200094637 MO
172255501 TX - Medicare enrollment
- Enrolled (PECOS I20260320003637); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erik Richard Ensrud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C207741Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average neurology physician in 2024
366 Medicare Part D claims for 45 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Radicava Ors49 claims
- Gammagard Liquid45 claims
- Pyridostigmine Bromide32 claims
- Riluzole30 claims
- Sodium Chloride25 claims
- Prednisone24 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.
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Erik Richard Ensrud among 2,339 neurology physician records in California
Erik Richard Ensrud, MD is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1994 · median 2006 among the 1,628 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
78 neurology physician records list a practice address in Stanford
They are 78 of the 5,606 NPPES records with a practice address in Stanford, and 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Stanford → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Sheena Aurora, MBBSStanford, CA 943051346303716
- Leslie Dorfman, MDStanford, CA 943051255382065
- Jeffrey Dunn, MDStanford, CA 943051639123383
- Anna Finley Caulfield, M.D.Stanford, CA 943051851358097
- Hideki Garren, MDStanford, CA 943051407807183
- Michael Greicius, MDStanford, CA 943051861443509
- Frank Longo, MD, PHDStanford, CA 943051801966254
- William Marks, MDStanford, CA 943051053341693
Common questions
What is Erik Richard Ensrud, MD's NPI number?
Erik Richard Ensrud, MD's National Provider Identifier (NPI) is 1982658738, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erik Richard Ensrud, MD 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 Erik Richard Ensrud, MD's license?
NPPES lists California license number C207741, 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 Erik Richard Ensrud, MD prescribe under Medicare Part D?
In 2024, Erik Richard Ensrud, MD had 366 Medicare Part D claims for 45 beneficiaries; the average among neurology physician prescribers was 1,370. 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.