NPPES file of Aug 9, 2026

Casey N. Rives, M.D.

Hospitalist Physician · Santa Barbara, CA

Casey N. Rives, M.D. is a hospitalist physician with a practice address in Santa Barbara, California, and NPI 1720213382, issued on May 26, 2009. Check the license (California C155656, 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
1720213382
Name
Casey N. Rives
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
C155656 CA
Self-reported in NPPES; status is on the state search
Practice location
317 W Pueblo St, Santa Barbara, CA 93105
Phone
(805) 898-3077
Enumerated
May 26, 2009
Record last updated
May 29, 2026
Medicare enrollment
Enrolled (PECOS I20181120002752); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 2009
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 317 W Pueblo St

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

  1. Justin Abraham, M.D., M.B.A.Neurology Physician1225322522
  2. Hosam Ahmad, M.D.Hospitalist Physician1881846475
  3. Joseph Aragon, M.D.Interventional Cardiology Physician1023122587
  4. Hiwot ArayaHospitalist Physician1922427327
  5. Christina Archer, MS, RDRegistered Dietitian1487178380
  6. Summer Baird, M.D.Internal Medicine Physician1245727809

Verify Casey N. Rives in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C155656
    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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67% fewer Medicare Part D claims than the average hospitalist physician in 2024

171 Medicare Part D claims for 99 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 28 claims were for opioids.

  1. Casey Rives171
  2. Specialty average521

Most prescribed

  1. Hydrocodone-Acetaminophen13 claims
  2. Eliquis11 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.

Bills Medicare through one group practice

  1. Sansum ClinicSanta Barbara, CA

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

Casey N. Rives among 3,099 hospitalist physician records in California

Casey N. Rives, M.D. 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 2009, is newer than 39% of them.

  • NPI issued2009 · 39% of these records are older, 56% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2009 · median 2010 among the 2,505 with a school on file
  • Record last updated2026 · 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).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Hosam Ahmad, M.D.Santa Barbara, CA 931051881846475
  2. Hiwot ArayaSanta Barbara, CA 931051922427327
  3. Michele Armet, MDSanta Barbara, CA 931051942389275
  4. Enrico Cerrato, MDSanta Barbara, CA 931051588738108
  5. Gregory Hammett, D.O.Santa Barbara, CA 931051508266727
  6. Lindsay Katona, D.O.Santa Barbara, CA 931051952752263
  7. Anh Lam, MDSanta Barbara, CA 931051043328933
  8. Jeremy Lash, MDSanta Barbara, CA 931051144585514

Common questions

What is Casey N. Rives, M.D.'s NPI number?

Casey N. Rives, M.D.'s National Provider Identifier (NPI) is 1720213382, issued on May 26, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Casey N. Rives, M.D. located?

The NPPES record lists a practice address at 317 W Pueblo St, Santa Barbara, CA, 93105. Phone: (805) 898-3077. Providers update this record themselves, so call before visiting.

How can I verify Casey N. Rives, M.D.'s license?

NPPES lists California license number C155656, 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 Casey N. Rives, M.D. prescribe under Medicare Part D?

In 2024, Casey N. Rives, M.D. had 171 Medicare Part D claims for 99 beneficiaries; the average among hospitalist physician prescribers was 521. 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.