Richard G. Johnson, M.D
Specialist · Glendora, CA
Richard G. Johnson, M.D is a specialist with a practice address in Glendora, California, and NPI 1083691182, issued on Dec 29, 2005. Check the license (California G45973, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Richard G. Johnson
- Credential
- M.D
- Primary taxonomy
- Specialist 174400000X
- License number
- G45973 CA
Self-reported in NPPES; status is on the state search - Practice location
- 415 W Carroll Ave, Glendora, CA 91741
- Phone
- (626) 914-5219
- Enumerated
- Dec 29, 2005
- Record last updated
- Mar 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (626) 914-7846
- Medicaid ID
- 00G459730 CA
- Medicare enrollment
- Enrolled (PECOS I20041214001177); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 415 W Carroll Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth VernettiPhysical Therapist1447457304
Verify Richard G. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G45973Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average specialist in 2024
572 Medicare Part D claims for 161 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 35 claims were for opioids.
Most prescribed
- Azithromycin42 claims
- Prednisone42 claims
- Omeprazole33 claims
- Hydrocodone-Acetaminophen23 claims
- Losartan Potassium20 claims
- Albuterol Sulfate Hfa18 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
- Healthcare Partners Affiliates Medical GroupGlendora, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard G. Johnson among 5,749 specialist records in California
Richard G. Johnson, M.D is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1980 · median 1989 among the 1,075 with a school on file
- Record last updated2011 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Glendora → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Joseph Anthony, DDS,MSGlendora, CA 917411447361753
- Plaridel Atil, MDGlendora, CA 917411184625543
- Suresh Selvaraju, PHDDuarte, CA 917411750764320
- Gurjeet Kalkat, M.D.Glendora, CA 917401346298924
- Manmohan Kumar, M.D.Glendora, CA 917401336185370
- Bassam Mouazzen, M.D.Glendora, CA 917401952492712
- Amarpaul Sidhu, M.DGlendora, CA 917401396713822
- Mayank Vakil, M.D.Glendora, CA 917401861449985
Common questions
What is Richard G. Johnson, M.D's NPI number?
Richard G. Johnson, M.D's National Provider Identifier (NPI) is 1083691182, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Richard G. Johnson, M.D located?
The NPPES record lists a practice address at 415 W Carroll Ave, Glendora, CA, 91741. Phone: (626) 914-5219. Providers update this record themselves, so call before visiting.
How can I verify Richard G. Johnson, M.D's license?
NPPES lists California license number G45973, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Richard G. Johnson, M.D prescribe under Medicare Part D?
In 2024, Richard G. Johnson, M.D had 572 Medicare Part D claims for 161 beneficiaries; the average among specialist prescribers was 1,380. 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.