DENNIS L POTAPCHUK
NPI 1518796754
Nurse Anesthetist, Certified Registered in Sonora, CA
About Dennis L Potapchuk NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS L POTAPCHUK (NPI 1518796754) is an individual nurse anesthetist, certified registered in Sonora, California, licensed in California (95002662) and active in the NPI registry since July 2024. He is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses 2
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
Dennis L Potapchuk 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 Dennis Potapchuk reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sonora, CA 95370
- Reassigned Medicare billing, California enrollment
- 31 clinicians in this Medicare group
Madera, CA 93637
- Reassigned Medicare billing, California enrollment
- 92 clinicians in this Medicare group
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 45 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95370 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Dennis Potapchuk's NPI number?
The NPI number for Dennis Potapchuk is 1518796754. It was assigned to this individual provider in the NPPES registry on July 27, 2024.
Where is Dennis Potapchuk located?
Dennis Potapchuk practices at 1000 Greenley Rd, Sonora, CA 95370. The listed phone number is (209) 770-4501.
What is Dennis Potapchuk's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Dennis Potapchuk enrolled in Medicare?
Yes. Dennis Potapchuk 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 Dennis Potapchuk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Potapchuk reassigns Medicare benefits to 3 organizations: Sonora Anesthesia Services A Medical Group Inc (Sonora, CA), Central California Anesthesiology Solutions (Madera, CA) and Sedaze Anesthesia Consultants A Professional Nursing Corporation (Castro Valley, 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 Dennis Potapchuk'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 Dennis Potapchuk was last updated on February 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# Dennis L Potapchuk · NPI 1518796754
Nurse Anesthetist, Certified Registered physician in Sonora, California. Individual provider, active in the CMS NPPES registry since July 27, 2024.
## Identity
- **NPI:** 1518796754 (Entity type: Individual)
- **Enumerated:** July 27, 2024
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 95002662 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 GREENLEY RD, Sonora, CA 95370-5200
- **Phone:** (209) 770-4501
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Sonora Anesthesia Services A Medical Group Inc (NPI 1265481105, Sonora, CA); Central California Anesthesiology Solutions (NPI 1861020224, Madera, CA); Sedaze Anesthesia Consultants A Professional Nursing Corporation (NPI 1366209629, Castro Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** February 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1518796754) · Data from the CMS NPPES public registry.