Michael Leonard Ratter, M.D.
Emergency Medicine Physician · Riverside, CA
Michael Leonard Ratter, M.D. is an emergency medicine physician with a practice address in Riverside, California, and NPI 1457380784, issued on Jun 30, 2006. Check the license (California G56347, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael Leonard Ratter
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G56347 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3865 Jackson St, Riverside, CA 92503
- Phone
- (951) 352-5666
- Enumerated
- Jun 30, 2006
- Record last updated
- Feb 18, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (951) 352-5445
- Medicaid ID
- 00G563470 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 3865 Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John AbedEmergency Medicine Physician1891724316
- Betsy Albrecht, R.N. CNOR RNFARegistered Nurse First Assistant1043643208
- Alyssa Armstrong, CNMAdvanced Practice Midwife1770359754
- Marium AwadPharmacist1215641709
- Christine Ayad, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1316458896
- Bassam BaderHospitalist Physician1487072559
Verify Michael Leonard Ratter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56347Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael Leonard Ratter among 7,751 emergency medicine physician records in California
Michael Leonard Ratter, M.D. is one of 7,751 emergency 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 not. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2008 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,751 in California → Every provider in Riverside → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- John AbedRiverside, CA 925031891724316
- Robert Cannon, M.D.Riverside, CA 925031528097045
- Chad Clark, M.D.Riverside, CA 925031023052545
- Julius Ibanez, M.D.Riverside, CA 925031831125376
- Michael Lowe, M.D.Riverside, CA 925031710916234
- Ronald Moy, M.D.Riverside, CA 925031831313337
- Gerald Ngo, MDRiverside, CA 925031134821838
- Elvia Orrillo, M.D.Riverside, CA 925031639114259
Common questions
What is Michael Leonard Ratter, M.D.'s NPI number?
Michael Leonard Ratter, M.D.'s National Provider Identifier (NPI) is 1457380784, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Leonard Ratter, M.D. located?
The NPPES record lists a practice address at 3865 Jackson St, Riverside, CA, 92503. Phone: (951) 352-5666. Providers update this record themselves, so call before visiting.
How can I verify Michael Leonard Ratter, M.D.'s license?
NPPES lists California license number G56347, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.