NPPES file of Aug 9, 2026

Steven Sainsbury, MD

Emergency Medical Services (Emergency Medicine) Physician · San Luis Obispo, CA

Steven Sainsbury, MD is an emergency medical services (emergency medicine) physician with a practice address in San Luis Obispo, California, and NPI 1679521256, issued on May 5, 2006. Check the license (California G52428, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679521256
Name
Steven Sainsbury
Credential
MD
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
G52428 CA
Self-reported in NPPES; status is on the state search
Practice location
1383 Alder St, San Luis Obispo, CA 93401
Phone
(805) 704-3256
Enumerated
May 5, 2006
Record last updated
Nov 9, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
00G524280 CA
Medicare enrollment
Enrolled (PECOS I20081209000239); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1982
Telehealth
Offers telehealth (CMS)
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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Verify Steven Sainsbury in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G52428
    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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21.7 times the Medicare Part D claims of the average emergency medical services (emergency medicine) physician in 2024

6,324 Medicare Part D claims for 258 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 148 claims were for opioids.

  1. Steven Sainsbury6,324
  2. Specialty average292

Most prescribed

  1. Levothyroxine Sodium394 claims
  2. Quetiapine Fumarate305 claims
  3. Escitalopram Oxalate255 claims
  4. Furosemide251 claims
  5. Atorvastatin Calcium200 claims
  6. Amlodipine Besylate195 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.

The MIPS final score for 2023 (Medicare payment program): 18.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%62.3
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Steven Sainsbury among 233 emergency medical services (emergency medicine) physician records in California

Steven Sainsbury, MD is one of 233 emergency medical services (emergency medicine) physician records with a practice address in California. 69% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 50% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated1982 · median 2002 among the 99 with a school on file
  • Record last updated2018 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in California

There are 233 emergency medical services (emergency medicine) physician records in California.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Eugene Keller, MDSan Luis Obispo, CA 934011881867323
  2. Robert Taylor, MDAtascadero, CA 934221144278052
  3. Liberty Partridge, M.D.Lompoc, CA 934361265600068
  4. Manish Amin, DOBakersfield, CA 933051407813116
  5. Paul Mroz, M.D.Bakersfield, CA 933051902110984
  6. Michael Niedens, D.O.Bakersfield, CA 933051013169572
  7. Dylan Martin, EMTPorterville, CA 932571407517907
  8. Amber Trindle, RNTehachapi, CA 935611619895950

Common questions

What is Steven Sainsbury, MD's NPI number?

Steven Sainsbury, MD's National Provider Identifier (NPI) is 1679521256, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven Sainsbury, MD located?

The NPPES record lists a practice address at 1383 Alder St, San Luis Obispo, CA, 93401. Phone: (805) 704-3256. Providers update this record themselves, so call before visiting.

How can I verify Steven Sainsbury, MD's license?

NPPES lists California license number G52428, 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 Steven Sainsbury, MD prescribe under Medicare Part D?

In 2024, Steven Sainsbury, MD had 6,324 Medicare Part D claims for 258 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. Part D covers Medicare prescriptions only.

What is Steven Sainsbury, MD's MIPS final score?

The 2023 MIPS final score is 18.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.