Registry data as of Aug 27, 2026

Sierra Bourne, M.D.

Emergency Medicine Physician · Bishop, CA

Sierra Bourne, M.D. is an emergency medicine physician with a practice address in Bishop, California, and NPI 1659682532, issued on Jun 25, 2010. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1659682532
Name
Sierra Bourne
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
R72184 AZ
Self-reported in NPPES; status is on the state search
Practice location
150 Pioneer LN, Bishop, CA 93514
Phone
(760) 873-5811
Enumerated
Jun 25, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 150 Pioneer LN

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

  1. William Blake, DPTPhysical Therapist1760979207
  2. Stacey Brown, MDFamily Medicine Physician1629004650
  3. Jeremiah ChengInternal Medicine Physician1043698061
  4. John Cowan, MDAnesthesiology Physician1891714325
  5. Clayton Davis, DOStudent in an Organized Health Care Education/Training Program1164927927
  6. Amy Do-Nguyen, MDEmergency Medicine Physician1639733314

Verify Sierra Bourne in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

83% fewer Medicare Part D claims than the average emergency medicine physician in 2024

60 Medicare Part D claims for 42 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D.

  1. Sierra Bourne60
  2. Specialty average355

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 or facility affiliation

  1. Northern Inyo Healthcare DistrictBishop, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

7 emergency medicine physician records list a Bishop practice address

They are 7 of the 336 NPPES records with a Bishop practice address, and 7,133 emergency medicine physician records in California.

Other emergency medicine physician records in California

  1. Cooper Aakhus, MDStanford, CA1194351007
  2. Pyra Aarden, MDMartinez, CA1417058199
  3. Neal Aaron, D.O.Encinitas, CA1114283520
  4. Eric AaserudeWalnut Creek, CA1811491194
  5. Nader Abas, MDBarstow, CA1346288305
  6. Michael Abbo, MDNovato, CA1205819042
  7. Daniel Abbott, MDFullerton, CA1518907864
  8. Paul-Andre Abboud, M.D.Oakland, CA1710065503
  9. Mostafa Abdel-Hamid, MDStanford, CA1457918740
  10. Ashraf Abdel-KerimChino, CA1396961538

Common questions

What is Sierra Bourne, M.D.'s NPI number?

Sierra Bourne, M.D.'s National Provider Identifier (NPI) is 1659682532, issued on Jun 25, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Sierra Bourne, M.D. located?

The NPPES record lists a practice address at 150 Pioneer LN, Bishop, CA, 93514. Phone: (760) 873-5811. Providers update this record themselves, so call before visiting.

How can I verify Sierra Bourne, M.D.'s license?

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 Sierra Bourne, M.D. prescribe under Medicare Part D?

In 2024, Sierra Bourne, M.D. had 60 Medicare Part D claims for 42 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.