John Gary McCoy, D.O.
Emergency Medicine Physician · Anaheim, CA
John Gary McCoy, D.O. is an emergency medicine physician with a practice address in Anaheim, California, and NPI 1730499336, issued on Oct 15, 2010. Check the license (California 20A11105, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Gary McCoy
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A11105 CA
DR.0074463 CO
Self-reported in NPPES; status is on the state search - Practice location
- 3440 E LA Palma Ave, Anaheim, CA 92806
- Phone
- (714) 644-2800
- Enumerated
- Oct 15, 2010
- Record last updated
- May 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20120530000263); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 3440 E LA Palma Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Salli AzizHospitalist Physician1841720604
- Ricardo Bardales MendozaInternal Medicine Physician1801103130
- Sharrise Boop, MSWSocial Worker1134643489
Verify John Gary McCoy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11105Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% more Medicare Part D claims than the average emergency medicine physician in 2024
258 Medicare Part D claims for 196 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Prednisone25 claims
- Cefadroxil18 claims
- Amoxicillin-Clavulanate Potass17 claims
- Nitrofurantoin Mono-Macro17 claims
- Paxlovid14 claims
- Ciprofloxacin Hcl13 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 GroupGarden Grove, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gary McCoy among 7,751 emergency medicine physician records in California
John Gary McCoy, D.O. 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. Its NPI, issued in 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2008 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 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.
All 7,751 in California → Every provider in Anaheim → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Stephanie Chen, M.D.Anaheim, CA 928061669634432
- Cory Hata, DOAnaheim, CA 928061508136847
- Charles Lu, DOAnaheim, CA 928061104189414
- Tuan Nguyen, D.O.Anaheim, CA 928061861636037
- Chien Sun, M.D.Anaheim, CA 928061326153750
- Sean Wilson, MDAnaheim, CA 928061528320231
- Albert Aparicio, MDAnaheim, CA 928051336645852
- Robert Becker, MDAnaheim, CA 928071487725362
Common questions
What is John Gary McCoy, D.O.'s NPI number?
John Gary McCoy, D.O.'s National Provider Identifier (NPI) is 1730499336, issued on Oct 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Gary McCoy, D.O. located?
The NPPES record lists a practice address at 3440 E LA Palma Ave, Anaheim, CA, 92806. Phone: (714) 644-2800. Providers update this record themselves, so call before visiting.
How can I verify John Gary McCoy, D.O.'s license?
NPPES lists California license number 20A11105, 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 John Gary McCoy, D.O. prescribe under Medicare Part D?
In 2024, John Gary McCoy, D.O. had 258 Medicare Part D claims for 196 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.