Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

David Jay Schneiderman, MD

Individual provider Gastroenterology Physician · NPI 1407867211

David Jay Schneiderman, MD practises Gastroenterology in Carmichael, California. Graduated from University of Maryland School of Medicine in 1980, 46 years ago. Practices with Marshall Medical Center, a 171-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
46
Trained at
University of Maryland School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6357 Coyle Ave Ste A
Carmichael, CA 95608-0478 Not confirmed with CMS for 16 years — call before visiting
Phone: (916) 863-1000
Fax: (916) 863-1234
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence C407820 (CA)

Record details

NPI number1407867211
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 10, 2006
Last updated in NPPESOctober 4, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Marshall Medical Center — 171 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 49 times · 63rd percentile
Colonoscopy 19 times · 47th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients107
Services billed 293 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Marshall Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 171 clinicians in the practice; 12 are shown here.

Other providers in Carmichael