Karen Child Shannon, MD
Family Medicine Physician · Loma Linda, CA
Karen Child Shannon, MD is a family medicine physician with a practice address in Loma Linda, California, and NPI 1669685079, issued on May 8, 2007. Check the license (California G89216, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen Child Shannon
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G89216 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25455 Barton RD Ste 206A, Loma Linda, CA 92354
- Phone
- (909) 558-6600
- Enumerated
- May 8, 2007
- Record last updated
- Oct 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 30201593 NH
- Medicare enrollment
- Enrolled (PECOS I20121128000199); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 25455 Barton RD Ste 206A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Davis, PA-CPhysician Assistant1689447674
- Christine Kim, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1164768636
- Brenda Rea, MDFamily Medicine Physician1477844017
- Daniel Reichert, M.D.Family Medicine Physician1215907415
- Roger Woodruff, MDFamily Medicine Physician1073686713
Verify Karen Child Shannon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G89216Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average family medicine physician in 2024
1,841 Medicare Part D claims for 328 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 49 claims were for opioids.
Most prescribed
- Atorvastatin Calcium132 claims
- Levothyroxine Sodium104 claims
- Losartan Potassium62 claims
- Hydrochlorothiazide58 claims
- Amlodipine Besylate54 claims
- Omeprazole53 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): 85.2 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
- Sac Health SystemSan Bernardino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Child Shannon among 17,133 family medicine physician records in California
Karen Child Shannon, MD is one of 17,133 family 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1987 · median 2005 among the 10,652 with a school on file
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 family medicine physician records list a practice address in Loma Linda
They are 62 of the 4,863 NPPES records with a practice address in Loma Linda, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Loma Linda → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Linda Deppe, D.O.Loma Linda, CA 923541568493864
- Joan Haynes-Lee, M.D.Loma Linda, CA 923541578590097
- William Jih, M.D.Loma Linda, CA 923541417985581
- Reewa Kejriwal, N.P.Loma Linda, CA 923541376573188
- Richard Kim, M.D.Loma Linda, CA 923541912014341
- Laurie McNaughton, M.D.Loma Linda, CA 923541205947587
- Michelle Opsahl, M.D.Loma Linda, CA 923541083728729
- Barbara Orr, M.D.Loma Linda, CA 923541033223771
Common questions
What is Karen Child Shannon, MD's NPI number?
Karen Child Shannon, MD's National Provider Identifier (NPI) is 1669685079, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen Child Shannon, MD located?
The NPPES record lists a practice address at 25455 Barton RD Ste 206A, Loma Linda, CA, 92354. Phone: (909) 558-6600. Providers update this record themselves, so call before visiting.
How can I verify Karen Child Shannon, MD's license?
NPPES lists California license number G89216, 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 Karen Child Shannon, MD prescribe under Medicare Part D?
In 2024, Karen Child Shannon, MD had 1,841 Medicare Part D claims for 328 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Karen Child Shannon, MD's MIPS final score?
The 2023 MIPS final score is 85.2 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.