John Ehum, MD
Family Medicine Physician · Santa Ana, CA
John Ehum, MD is a family medicine physician with a practice address in Santa Ana, California, and NPI 1942483409, issued on Dec 7, 2007. Check the license (California A97838, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Ehum
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A97838 CA
Self-reported in NPPES; status is on the state search - Practice location
- 800 N Main St, Santa Ana, CA 92701
- Phone
- (714) 456-7002
- Enumerated
- Dec 7, 2007
- Record last updated
- Dec 7, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170228001952); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 800 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Ehum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A97838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.1 times the Medicare Part D claims of the average family medicine physician in 2024
18,026 Medicare Part D claims for 689 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 107 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,747 claims
- Amlodipine Besylate934 claims
- Losartan Potassium869 claims
- Metformin Hcl690 claims
- Omeprazole631 claims
- Vascepa544 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $434.96
19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Ehum among 17,133 family medicine physician records in California
John Ehum, 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
- Graduated2005 · median 2005 among the 10,652 with a school on file
- Record last updated2007 · 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).
177 family medicine physician records list a practice address in Santa Ana
They are 177 of the 8,904 NPPES records with a practice address in Santa Ana, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Ana → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lynette Anderson, DOSanta Ana, CA 927011164674503
- Bruno Bucci, M.D.Santa Ana, CA 927011407811250
- James Chau, M.D.Santa Ana, CA 927011285727784
- Kathryn Larsen, MDSanta Ana, CA 927011598845638
- Tim Le, D.O.Santa Ana, CA 927011366480188
- Amy Leu, D.O.Santa Ana, CA 927011922297712
- Jose Mayorga, MDSanta Ana, CA 927011295925154
- Suzanne Nguyen, MDSanta Ana, CA 927011164605713
Common questions
What is John Ehum, MD's NPI number?
John Ehum, MD's National Provider Identifier (NPI) is 1942483409, issued on Dec 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Ehum, MD located?
The NPPES record lists a practice address at 800 N Main St, Santa Ana, CA, 92701. Phone: (714) 456-7002. Providers update this record themselves, so call before visiting.
How can I verify John Ehum, MD's license?
NPPES lists California license number A97838, 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 Ehum, MD prescribe under Medicare Part D?
In 2024, John Ehum, MD had 18,026 Medicare Part D claims for 689 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is John Ehum, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.