NPPES file of Aug 9, 2026

Stephen S. West, MD

Surgery of the Hand (Surgery) Physician · Fontana, CA

Stephen S. West, MD is a surgery of the hand (surgery) physician with a practice address in Fontana, California, and NPI 1194873075, issued on Jan 8, 2007. Check the license (California G78623, 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
1194873075
Name
Stephen S. West
Credential
MD
Primary taxonomy
Surgery of the Hand (Surgery) Physician 2086S0105X
License number
G78623 CA
Self-reported in NPPES; status is on the state search
Practice location
9961 Sierra Ave, Fontana, CA 92335
Phone
(909) 427-3910
Enumerated
Jan 8, 2007
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081107000759); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1992
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 9961 Sierra Ave

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

  1. Solomon Abila, MDFamily Medicine Physician1871652479
  2. Jenny Abouelsood, M.D.Family Medicine Physician1457638512
  3. Marla Abrolat, MDPediatrics Physician1164593133
  4. Eduardo Acosta, MDPediatrics Physician1497803324
  5. Michael Adair, MDFamily Medicine Physician1780732651
  6. Berneva Adams, MDObstetrics & Gynecology Physician1376602987

Verify Stephen S. West in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G78623
    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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59% fewer Medicare Part D claims than the average surgery of the hand (surgery) physician in 2024

78 Medicare Part D claims for 33 beneficiaries, against an average of 188 among the 346 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Stephen West78
  2. Specialty average188

Most prescribed

  1. Naproxen22 claims
  2. Diclofenac Sodium19 claims
  3. Gabapentin13 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.

Industry payments in 2024: $69.34

2 payments; by number, the most common kind was food and beverage; the largest payer was Mentor Worldwide LLC. The 296 providers of this specialty with any payment received $4,725.83 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen West$69.34
  2. Specialty average$4,725.83

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

  1. Southern California Permanente Medical GroupRedlands, CA

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

Stephen S. West among 39 surgery of the hand (surgery) physician records in California

Stephen S. West, MD is one of 39 surgery of the hand (surgery) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.

  • NPI issued2007 · 51% of these records are older, 33% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1992 · median 2000 among the 29 with a school on file
  • Record last updated2021 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0105X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery of the Hand (Surgery) Physician providers in California

There are 39 surgery of the hand (surgery) physician records in California.

The 8 surgery of the hand (surgery) physician records with the nearest ZIP codes

  1. Walter Chang, MDFontana, CA 923351083781835
  2. Sharon Kalina, MDFontana, CA 923351053488908
  3. Ravi Kiran, MDFontana, CA 923351952459984
  4. Julie Gilbert, M.D.San Diego, CA 921231659378990
  5. Gregory Mack, M.D.San Diego, CA 921231528169513
  6. David Subin, M.D.San Diego, CA 921231770694622
  7. Anisa Yalom, MDSan Marcos, CA 920691164679908
  8. Grant Seiden, MDOceanside, CA 920561992025407

Common questions

What is Stephen S. West, MD's NPI number?

Stephen S. West, MD's National Provider Identifier (NPI) is 1194873075, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stephen S. West, MD located?

The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-3910. Providers update this record themselves, so call before visiting.

How can I verify Stephen S. West, MD's license?

NPPES lists California license number G78623, 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 Stephen S. West, MD prescribe under Medicare Part D?

In 2024, Stephen S. West, MD had 78 Medicare Part D claims for 33 beneficiaries; the average among surgery of the hand (surgery) physician prescribers was 188. 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.