Shannon Marie Valdez Carbajal, M.D.
Internal Medicine Physician · Moreno Valley, CA
Shannon Marie Valdez Carbajal, M.D. is an internal medicine physician with a practice address in Moreno Valley, California, and NPI 1598129587, issued on Apr 6, 2016. Check the license (California A157535, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shannon Marie Valdez Carbajal
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A157535 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26600 Cactus Ave Ste 300, Moreno Valley, CA 92555
- Phone
- (951) 988-9500
- Enumerated
- Apr 6, 2016
- Record last updated
- Mar 20, 2025
- Fax
- (951) 571-8938
- Medicare enrollment
- Enrolled (PECOS I20190809001333); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 26600 Cactus Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Magen CostillaNurse Practitioner1023756194
- Bushra Hasan, NPFamily Nurse Practitioner1265173223
- Kathie Huang, MDInternal Medicine Physician1407175342
- Lynette IlanoInternal Medicine Physician1477917524
- Sue Min Kwon, MDInternal Medicine Physician1174152631
- Alexis Martinez, PA-CPhysician Assistant1174233936
Verify Shannon Marie Valdez Carbajal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A157535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,898 Medicare Part D claims for 318 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium184 claims
- Gabapentin75 claims
- Metformin Hcl75 claims
- Benazepril Hcl72 claims
- Amlodipine Besylate69 claims
- Losartan Potassium60 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 practice group's MIPS final score for 2023 (Medicare payment program): 85.5 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 2 group practices
- County OF RiversideMoreno Valley, CA
- Riverside Faculty Medical Group IncMoreno Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shannon Marie Valdez Carbajal among 17,696 internal medicine physician records in California
Shannon Marie Valdez Carbajal, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
67 internal medicine physician records list a practice address in Moreno Valley
They are 67 of the 2,698 NPPES records with a practice address in Moreno Valley, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Moreno Valley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohamed Abu-Qaoud, M.D.Moreno Valley, CA 925551366635534
- Scott Allen, M.D.Moreno Valley, CA 925551184681710
- Roger Garrison, DOMoreno Valley, CA 925551013941475
- Douglas Hegstad, M.D.Moreno Valley, CA 925551649204009
- Jeffrey Katz, MDMoreno Valley, CA 925551316971476
- Daniel Kim, M.D.Moreno Valley, CA 925551295769651
- Lawrence Loo, MDMoreno Valley, CA 925551750311718
- William Ochoa, MDMoreno Valley, CA 925551558574954
Common questions
What is Shannon Marie Valdez Carbajal, M.D.'s NPI number?
Shannon Marie Valdez Carbajal, M.D.'s National Provider Identifier (NPI) is 1598129587, issued on Apr 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Shannon Marie Valdez Carbajal, M.D. located?
The NPPES record lists a practice address at 26600 Cactus Ave Ste 300, Moreno Valley, CA, 92555. Phone: (951) 988-9500. Providers update this record themselves, so call before visiting.
How can I verify Shannon Marie Valdez Carbajal, M.D.'s license?
NPPES lists California license number A157535, 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 Shannon Marie Valdez Carbajal, M.D. prescribe under Medicare Part D?
In 2024, Shannon Marie Valdez Carbajal, M.D. had 1,898 Medicare Part D claims for 318 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Shannon Marie Valdez Carbajal, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.5 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.