Warren C. Stout, M.D.
Ophthalmology Physician · Pasadena, CA
Warren C. Stout, M.D. is an ophthalmology physician with a practice address in Pasadena, California, and NPI 1790829208, issued on Feb 16, 2007. Check the license (California G46809, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Warren C. Stout
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G46809 CA
Self-reported in NPPES; status is on the state search - Practice location
- 800 E. Colorado Blvd., Pasadena, CA 91101
- Phone
- (626) 449-6494
- Enumerated
- Feb 16, 2007
- Record last updated
- Feb 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (626) 449-0813
- Medicare enrollment
- Enrolled (PECOS I20120213000031); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Warren C. Stout in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G46809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average ophthalmology physician in 2024
223 Medicare Part D claims for 52 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Neomycin-Polymyxin-Dexameth105 claims
- Azithromycin31 claims
- Methylprednisolone31 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
- Warren C Stout MD A Medical CorpPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Warren C. Stout among 2,899 ophthalmology physician records in California
Warren C. Stout, 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 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1980 · median 2001 among the 1,907 with a school on file
- Record last updated2015 · 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).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Pasadena → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Audra Yoshimura, O.D.Pasadena, CA 911011427192947
- Jingyi Ma, MD, FRCSCPasadena, CA 911031932023272
- Ali Mahdavi Fard, MDPasadena, CA 911031346737178
- Gerald Bowns, MDPasadena, CA 911051225000672
- Joseph Davidson, M.D.Pasadena, CA 911051467487926
- Jeffrey Hong, MDPasadena, CA 911051922049055
- Hugo Hsu, MDPasadena, CA 911051336153816
- Michael Ip, MDPasadena, CA 911051982670402
Common questions
What is Warren C. Stout, M.D.'s NPI number?
Warren C. Stout, M.D.'s National Provider Identifier (NPI) is 1790829208, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Warren C. Stout, M.D. located?
The NPPES record lists a practice address at 800 E. Colorado Blvd., Pasadena, CA, 91101. Phone: (626) 449-6494. Providers update this record themselves, so call before visiting.
How can I verify Warren C. Stout, M.D.'s license?
NPPES lists California license number G46809, 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 Warren C. Stout, M.D. prescribe under Medicare Part D?
In 2024, Warren C. Stout, M.D. had 223 Medicare Part D claims for 52 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.