Shelly Xiaolei Xing Gammon, MD
Internal Medicine Physician · Moreno Valley, CA
Shelly Xiaolei Xing Gammon, MD is an internal medicine physician with a practice address in Moreno Valley, California, and NPI 1477799344, issued on Dec 26, 2008. Check the license (California A96907, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shelly Xiaolei Xing Gammon
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A96907 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27200 Iris Ave, Moreno Valley, CA 92555
- Phone
- (866) 984-7483
- Enumerated
- Dec 26, 2008
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090416000045); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 27200 Iris Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fernando AvilaRegistered Respiratory Therapist1447733423
- Susan Chang, PHARMDPharmacist1841733755
- Sharina Mapleton, D.O.Cardiovascular Disease Physician1033433909
- Sarah ParkPharmacist1932939030
- Maria Reabroi, PHARM.D.Pharmacist1871688796
- Angel Rosilez, FNPFamily Nurse Practitioner1073086765
Verify Shelly Xiaolei Xing Gammon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96907Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,545 Medicare Part D claims for 298 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Amlodipine Besylate151 claims
- Hydralazine Hcl121 claims
- Losartan Potassium92 claims
- Furosemide89 claims
- Sevelamer Carbonate75 claims
- Potassium Chloride73 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
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shelly Xiaolei Xing Gammon among 17,696 internal medicine physician records in California
Shelly Xiaolei Xing Gammon, MD 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2009 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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 Shelly Xiaolei Xing Gammon, MD's NPI number?
Shelly Xiaolei Xing Gammon, MD's National Provider Identifier (NPI) is 1477799344, issued on Dec 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Shelly Xiaolei Xing Gammon, MD located?
The NPPES record lists a practice address at 27200 Iris Ave, Moreno Valley, CA, 92555. Phone: (866) 984-7483. Providers update this record themselves, so call before visiting.
How can I verify Shelly Xiaolei Xing Gammon, MD's license?
NPPES lists California license number A96907, 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 Shelly Xiaolei Xing Gammon, MD prescribe under Medicare Part D?
In 2024, Shelly Xiaolei Xing Gammon, MD had 1,545 Medicare Part D claims for 298 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.