Shawn Thomas Steen, MD
Surgical Oncology Physician · Ventura, CA
Shawn Thomas Steen, MD is a surgical oncology physician with a practice address in Ventura, California, and NPI 1366651259, issued on May 21, 2007. Check the license (California A107377, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shawn Thomas Steen
- Credential
- MD
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- A107377 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Hillmont Ave Ste 401, Ventura, CA 93003
- Phone
- (805) 652-5964
- Enumerated
- May 21, 2007
- Record last updated
- Nov 7, 2022
- Fax
- (805) 641-4416
- Medicare enrollment
- Enrolled (PECOS I20091002000532); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 2004
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 250 in California → Look up another NPI →
Also registered at 300 Hillmont Ave Ste 401
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Teresa Hong, NPFamily Nurse Practitioner1013251396
- Kenneth Leong, MDPlastic Surgery Physician1366519266
- Nathan Oh, D.O.Neurological Surgery Physician1992115778
Verify Shawn Thomas Steen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A107377Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average surgical oncology physician in 2024
20 Medicare Part D claims for 12 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $693.76
7 payments; by number, the most common kind was food and beverage; the largest payer was PolyNovo North America LLC. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Community Memorial Health SystemVentura, CA
- Community Physicians OF Ventura CountyVentura, CA
- Ventura County Surgical AssociatesVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shawn Thomas Steen among 250 surgical oncology physician records in California
Shawn Thomas Steen, MD is one of 250 surgical oncology physician records with a practice address in California. 84% 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 36% of them.
- NPI issued2007 · 36% of these records are older, 50% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2004 · median 2004 among the 184 with a school on file
- Record last updated2022 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in California
There are 250 surgical oncology physician records in California.
All 250 in California → Every provider in Ventura → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Rosa Choi, M.D.Santa Barbara, CA 931051376650713
- William Conway, MDSanta Barbara, CA 931051962626390
- Katrina Mitchell, M.D.Santa Barbara, CA 931051225233760
- Parisa Malekzadeh, M.D.Corona, CA 928821992055149
- Valentina BonevOrange, CA 928681326312075
- John A Butler, MDOrange, CA 928681902986094
- Oliver Eng, M.D.Orange, CA 928681245556406
- James Jakowatz, MDOrange, CA 928681649225384
Common questions
What is Shawn Thomas Steen, MD's NPI number?
Shawn Thomas Steen, MD's National Provider Identifier (NPI) is 1366651259, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Shawn Thomas Steen, MD located?
The NPPES record lists a practice address at 300 Hillmont Ave Ste 401, Ventura, CA, 93003. Phone: (805) 652-5964. Providers update this record themselves, so call before visiting.
How can I verify Shawn Thomas Steen, MD's license?
NPPES lists California license number A107377, 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 Shawn Thomas Steen, MD prescribe under Medicare Part D?
In 2024, Shawn Thomas Steen, MD had 20 Medicare Part D claims for 12 beneficiaries; the average among surgical oncology physician prescribers was 87. 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.