STEPHEN TRENT SHEY
NPI 1023639978
Internal Medicine in Gilroy, CA
About Stephen Trent Shey NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN TRENT SHEY (NPI 1023639978) is an individual internal medicine provider in Gilroy, California, licensed in California (A185774) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Arlington, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Stephen Trent Shey is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Stephen Shey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gilroy, CA 95020
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1629301346 (California), NPI 1588721500 (California)
- 2,460 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GILROY, CA 95020
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Stephen Shey's NPI number?
The NPI number for Stephen Shey is 1023639978. It was assigned to this individual provider in the NPPES registry on May 1, 2020.
Where is Stephen Shey located?
Stephen Shey practices at 9400 N Name Uno, Gilroy, CA 95020. The listed phone number is (408) 848-2000.
What is Stephen Shey's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Stephen Shey enrolled in Medicare?
Yes. Stephen Shey is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Stephen Shey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Shey reassigns Medicare benefits to County Of Santa Clara (Gilroy, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Shey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stephen Shey was last updated on August 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Stephen Trent Shey · NPI 1023639978
Internal Medicine physician in Gilroy, California. Individual provider, active in the CMS NPPES registry since May 1, 2020.
## Identity
- **NPI:** 1023639978 (Entity type: Individual)
- **Enumerated:** May 1, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A185774 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9400 N NAME UNO, Gilroy, CA 95020-3528
- **Phone:** (408) 848-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** County Of Santa Clara (NPI 1922093533, Gilroy, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** August 1, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1023639978) · Data from the CMS NPPES public registry.