STEPHEN ALEXANDER WESELY MD
NPI 1629069042
Emergency Medicine in Tracy, CA
About Stephen Alexander Wesely Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN ALEXANDER WESELY MD (NPI 1629069042) is an individual emergency medicine provider in Tracy, California, licensed in California (G75251) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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 Alexander Wesely Md 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 Reassignments
3Medicare enrollment records show Stephen Wesely reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tracy, CA 95376
- Reassigned Medicare billing, California enrollment
- 2,323 clinicians in this Medicare group
Tracy, CA 95376
- Reassigned Medicare billing, California enrollment
- 57 clinicians in this Medicare group
Turlock, CA 95380
- Reassigned Medicare billing, California enrollment
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 13
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 95376 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.
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 Wesely's NPI number?
The NPI number for Stephen Wesely is 1629069042. It was assigned to this individual provider in the NPPES registry on November 3, 2005.
Where is Stephen Wesely located?
Stephen Wesely practices at 1420 N Tracy Blvd Emergency Dept, Tracy, CA 95376. The listed phone number is (209) 342-2300.
What is Stephen Wesely's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Stephen Wesely enrolled in Medicare?
Yes. Stephen Wesely 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 organizations bill Medicare for Stephen Wesely's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Wesely reassigns Medicare benefits to 3 organizations: Cep America-California (Tracy, CA), Altamont Emergency Physicians Medical Group Inc (Tracy, CA) and Express Lane Urgent Care Inc. (Turlock, CA). Each 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 Wesely'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 Wesely was last updated on July 28, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 Alexander Wesely, MD · NPI 1629069042
Emergency Medicine physician in Tracy, California. Individual provider, active in the CMS NPPES registry since November 3, 2005.
## Identity
- **NPI:** 1629069042 (Entity type: Individual)
- **Enumerated:** November 3, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G75251 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1420 N TRACY BLVD, EMERGENCY DEPT, Tracy, CA 95376-3451
- **Phone:** (209) 342-2300 · **Fax:** (209) 524-4240
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Cep America-California (NPI 1629814736, Tracy, CA); Altamont Emergency Physicians Medical Group Inc (NPI 1952392375, Tracy, CA); Express Lane Urgent Care Inc. (NPI 1104075522, Turlock, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 1991
## Record status
- **NPPES last updated:** July 28, 2008
- **Other identifiers:** Medicare UPIN F79195; Medicaid OOG752510 (CA); Other OOG752510 (CA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1629069042) · Data from the CMS NPPES public registry.