Charles Gregory Maddux, M.D.
Ophthalmology Physician · Loma Linda, CA
Charles Gregory Maddux, M.D. is an ophthalmology physician with a practice address in Loma Linda, California, and NPI 1346603974, issued on Mar 31, 2016. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Gregory Maddux
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD61051076 WA
Self-reported in NPPES; status is on the state search - Practice location
- 11332 Mountain View Ave Ste C, Loma Linda, CA 92354
- Phone
- (909) 558-6131
- Enumerated
- Mar 31, 2016
- Record last updated
- Jul 21, 2022
- Fax
- (909) 558-0430
- Medicare enrollment
- Enrolled (PECOS I20200619002213); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 11332 Mountain View Ave Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Fluitt, PA-CPhysician Assistant1952142556
- Priscilla Galindo-SalazarStudent in an Organized Health Care Education/Training Program1417811639
- Sridevi KorandAddiction Medicine (Family Medicine) Physician1700345709
- Christina KwonFamily Medicine Physician1073297842
- Matthew Niedzwiecki, MDPsychiatry Physician1174859284
Verify Charles Gregory Maddux in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,479 Medicare Part D claims for 444 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.
Most prescribed
- Latanoprost375 claims
- Prednisolone Acetate168 claims
- Ketorolac Tromethamine145 claims
- Timolol Maleate144 claims
- Fluorometholone88 claims
- Dorzolamide-Timolol80 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): 68.8 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).
Industry payments in 2024: $201.34
8 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 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.
Bills Medicare through one group practice
- North Cascade Eye Associates PSSedro Woolley, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Gregory Maddux among 2,899 ophthalmology physician records in California
Charles Gregory Maddux, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 86% of them.
- NPI issued2016 · 86% of these records are older, 12% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2016 · median 2001 among the 1,907 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 ophthalmology physician records list a practice address in Loma Linda
They are 38 of the 4,863 NPPES records with a practice address in Loma Linda, and 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Loma Linda → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- John Affeldt, MDLoma Linda, CA 923541275523375
- Larry Bowes, M.D.Loma Linda, CA 923541164454930
- Leslie Bruce-Lyle, M.D.Loma Linda, CA 923541316048382
- Kakarla Chalam, MDLoma Linda, CA 923541336112812
- William Clegg, M.D.Loma Linda, CA 923541790717403
- Howard Gimbel, M.D.Loma Linda, CA 923541578591921
- Garima Lal, MDLoma Linda, CA 923541285616490
- Harvey Lashier, M.D.Loma Linda, CA 923541528079258
Common questions
What is Charles Gregory Maddux, M.D.'s NPI number?
Charles Gregory Maddux, M.D.'s National Provider Identifier (NPI) is 1346603974, issued on Mar 31, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Charles Gregory Maddux, M.D. located?
The NPPES record lists a practice address at 11332 Mountain View Ave Ste C, Loma Linda, CA, 92354. Phone: (909) 558-6131. Providers update this record themselves, so call before visiting.
How can I verify Charles Gregory Maddux, M.D.'s license?
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 Charles Gregory Maddux, M.D. prescribe under Medicare Part D?
In 2024, Charles Gregory Maddux, M.D. had 1,479 Medicare Part D claims for 444 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Charles Gregory Maddux, M.D.'s MIPS final score?
The 2023 MIPS final score is 68.8 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.