Steven John Carstens, D.O
Emergency Medicine Physician · Visalia, CA
Steven John Carstens, D.O is an emergency medicine physician with a practice address in Visalia, California, and NPI 1093826562, issued on Aug 31, 2006. Check the license (California 20A6405, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven John Carstens
- Credential
- D.O
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20A6405 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 W Mineral King Ave, Visalia, CA 93291
- Phone
- (559) 624-2215
- Enumerated
- Aug 31, 2006
- Record last updated
- May 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 00AX64050 CA
- Medicare enrollment
- Enrolled (PECOS I20050713000526); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 400 W Mineral King Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mohammed Asfhan Ahmed, DOInternal Medicine Physician1588161483
- Peter Aijian, M.D.Emergency Medicine Physician1518978287
- Akram Al-Saber, MDStudent in an Organized Health Care Education/Training Program1306784608
Verify Steven John Carstens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6405Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average emergency medicine physician in 2024
74 Medicare Part D claims for 50 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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 practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kaweah Delta Health Care DistrictVisalia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven John Carstens among 7,751 emergency medicine physician records in California
Steven John Carstens, D.O is one of 7,751 emergency medicine 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, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1992 · median 2011 among the 4,560 with a school on file
- Record last updated2008 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
71 emergency medicine physician records list a practice address in Visalia
They are 71 of the 4,225 NPPES records with a practice address in Visalia, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Visalia → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Peter Aijian, M.D.Visalia, CA 932911518978287
- Xi Damrell, M.D.Visalia, CA 932911154490647
- Carolyn Fleming, M.D.Visalia, CA 932911255342945
- Sidney Frank, M.D.Visalia, CA 932911740291434
- Thomas Gray, M.D.Visalia, CA 932911376654533
- John Hipskind, M.D.Visalia, CA 932911730190430
- Steven Larsen, M.D.Visalia, CA 932911508877200
- Steve Rosonke, MDVisalia, CA 932911083659155
Common questions
What is Steven John Carstens, D.O's NPI number?
Steven John Carstens, D.O's National Provider Identifier (NPI) is 1093826562, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven John Carstens, D.O located?
The NPPES record lists a practice address at 400 W Mineral King Ave, Visalia, CA, 93291. Phone: (559) 624-2215. Providers update this record themselves, so call before visiting.
How can I verify Steven John Carstens, D.O's license?
NPPES lists California license number 20A6405, 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 John Carstens, D.O prescribe under Medicare Part D?
In 2024, Steven John Carstens, D.O had 74 Medicare Part D claims for 50 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Steven John Carstens, D.O's MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. 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.