John Loudermilk, MD
Emergency Medicine Physician · Carmichael, CA
John Loudermilk, MD is an emergency medicine physician with a practice address in Carmichael, California, and NPI 1366582264, issued on Feb 8, 2007. Check the license (California C40700, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Loudermilk
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- C40700 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6501 Coyle Ave, Carmichael, CA 95608
- Phone
- (330) 493-4443
- Enumerated
- Feb 8, 2007
- Record last updated
- Jan 9, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 00C407000 CA
- Medicare enrollment
- Enrolled (PECOS I20090203000554); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1981
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 6501 Coyle Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Loudermilk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C40700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average emergency medicine physician in 2024
118 Medicare Part D claims for 84 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Cephalexin19 claims
- Sulfamethoxazole-Trimethoprim15 claims
- Hydrocodone-Acetaminophen12 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 practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cep America - CaliforniaRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Loudermilk among 7,751 emergency medicine physician records in California
John Loudermilk, MD 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1981 · median 2011 among the 4,560 with a school on file
- Record last updated2013 · 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).
20 emergency medicine physician records list a practice address in Carmichael
They are 20 of the 1,440 NPPES records with a practice address in Carmichael, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Carmichael → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Roderick Ballelos, DOCarmichael, CA 956081336265164
- Anita Borrowdale, MDCarmichael, CA 956081851431746
- Marcia Casas, M.D.Carmichael, CA 956081902946072
- Cindy Chang, MDCarmichael, CA 956081922036847
- Michael Gillogley, MDCarmichael, CA 956081477567634
- James Goldberg, MDCarmichael, CA 956081326250929
- Andrew Griffin, MDCarmichael, CA 956081134325202
- Natalie Hoover, M.D.Carmichael, CA 956081053679324
Common questions
What is John Loudermilk, MD's NPI number?
John Loudermilk, MD's National Provider Identifier (NPI) is 1366582264, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Loudermilk, MD located?
The NPPES record lists a practice address at 6501 Coyle Ave, Carmichael, CA, 95608. Phone: (330) 493-4443. Providers update this record themselves, so call before visiting.
How can I verify John Loudermilk, MD's license?
NPPES lists California license number C40700, 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 Loudermilk, MD prescribe under Medicare Part D?
In 2024, John Loudermilk, MD had 118 Medicare Part D claims for 84 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is John Loudermilk, MD's MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. 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.