Mark David Schneider, D.O.
Family Medicine Physician · Downey, CA
Mark David Schneider, D.O. is a family medicine physician with a practice address in Downey, California, and NPI 1487711701, issued on Jan 3, 2007. Check the license (California 20A4199, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark David Schneider
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A4199 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11411 Brookshire Avenue, Downey, CA 90241
- Phone
- (562) 904-4411
- Enumerated
- Jan 3, 2007
- Record last updated
- Mar 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (562) 904-4415
- Medicare enrollment
- Enrolled (PECOS I20050714000617); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1976
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Mark David Schneider in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A4199Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average family medicine physician in 2024
2,595 Medicare Part D claims for 488 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 105 claims were for opioids.
Most prescribed
- Atorvastatin Calcium238 claims
- Lisinopril118 claims
- Metformin Hcl109 claims
- Amlodipine Besylate108 claims
- Alprazolam101 claims
- Losartan Potassium85 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): 76.3 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
- Pih Health PhysiciansDowney, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark David Schneider among 17,133 family medicine physician records in California
Mark David Schneider, D.O. 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
- Graduated1976 · median 2005 among the 10,652 with a school on file
- Record last updated2019 · 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).
65 family medicine physician records list a practice address in Downey
They are 65 of the 3,607 NPPES records with a practice address in Downey, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Downey → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Matthew Blazon Yee, DODowney, CA 902411710043328
- Sherie Carnegie, D ODowney, CA 902411821013772
- Simon Chang, M.D.Downey, CA 902411760594097
- Andrew Chao, D.O.Downey, CA 902411780621755
- Thilan Fernando, M.D.Downey, CA 902411316146632
- Ole Heggeness, D.O.Downey, CA 902411518911908
- Ragaa Iskarous, M.D.Downey, CA 902411215035274
- Antonio Morquecho, PADowney, CA 902411417173220
Common questions
What is Mark David Schneider, D.O.'s NPI number?
Mark David Schneider, D.O.'s National Provider Identifier (NPI) is 1487711701, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark David Schneider, D.O. located?
The NPPES record lists a practice address at 11411 Brookshire Avenue, Downey, CA, 90241. Phone: (562) 904-4411. Providers update this record themselves, so call before visiting.
How can I verify Mark David Schneider, D.O.'s license?
NPPES lists California license number 20A4199, 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 Mark David Schneider, D.O. prescribe under Medicare Part D?
In 2024, Mark David Schneider, D.O. had 2,595 Medicare Part D claims for 488 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mark David Schneider, D.O.'s MIPS final score?
The 2023 MIPS final score is 76.3 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.