NPPES file of Aug 9, 2026

Sierra Suzon Elsken, MD

Hospitalist Physician · Mountain View, CA

Sierra Suzon Elsken, MD is a hospitalist physician with a practice address in Mountain View, California, and NPI 1912467978, issued on Mar 24, 2019. Check the license (California A182171, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912467978
Name
Sierra Suzon Elsken
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A182171 CA
Self-reported in NPPES; status is on the state search
Practice location
701 E EL Camino Real, Mountain View, CA 94040
Phone
(650) 934-7808
Enumerated
Mar 24, 2019
Record last updated
Jan 7, 2025
Medicare enrollment
Enrolled (PECOS I20230510001562); accepts Medicare assignment
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 701 E EL Camino Real

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

  1. Aya Abou-Nasr, MDAnesthesiology Physician1982191672
  2. Jaimie Abraham, AGPCNP-BCFamily Nurse Practitioner1245757699
  3. Brooke Abrantes, PA-CSurgical Physician Assistant1316771298
  4. Faud Abuabara, M.D.MOHS-Micrographic Surgery Physician1164472890
  5. Felix Adler, M.D.Diagnostic Radiology Physician1801069729
  6. Olga Afanasiev, MD, PHDDermatology Physician1669869384

Verify Sierra Suzon Elsken in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A182171
    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

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

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Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Jose, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sierra Suzon Elsken among 3,099 hospitalist physician records in California

Sierra Suzon Elsken, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 81% of them.

  • NPI issued2019 · 81% of these records are older, 15% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2018 · median 2010 among the 2,505 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 hospitalist physician records list a practice address in Mountain View

They are 36 of the 2,467 NPPES records with a practice address in Mountain View, and 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Benjamin Chang, MDMountain View, CA 940401639185143
  2. Ryan Collins, M.D.Mountain View, CA 940401760442958
  3. Mahsa Esfahani, MDMountain View, CA 940401447205547
  4. Jose Fuentes, MDMountain View, CA 940401306944947
  5. Gregory KatoMountain View, CA 940401104924760
  6. Michael LimMountain View, CA 940401205934700
  7. Shreyas Mallur, M.D.Mountain View, CA 940401063519312
  8. Yen Nguyen, MDMountain View, CA 940401669567079

Common questions

What is Sierra Suzon Elsken, MD's NPI number?

Sierra Suzon Elsken, MD's National Provider Identifier (NPI) is 1912467978, issued on Mar 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Sierra Suzon Elsken, MD located?

The NPPES record lists a practice address at 701 E EL Camino Real, Mountain View, CA, 94040. Phone: (650) 934-7808. Providers update this record themselves, so call before visiting.

How can I verify Sierra Suzon Elsken, MD's license?

NPPES lists California license number A182171, 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.

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.