JOHN K SHAVER M.D.
NPI 1598765729
Surgery in Mission Viejo, CA
About John K Shaver M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN K SHAVER M.D. (NPI 1598765729) is an individual surgery provider in Mission Viejo, California, licensed in California (G67999) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Vanderbilt University School Of Medicine (1988).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
John K Shaver M.d. 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
2Medicare enrollment records show John Shaver reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
- 28 clinicians in this Medicare group
Laguna Hills, CA 92653
- Reassigned Medicare billing, California enrollment
- 22 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 10
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 92691 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.
Reported Quality Measures
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.
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
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 John Shaver's NPI number?
The NPI number for John Shaver is 1598765729. It was assigned to this individual provider in the NPPES registry on July 29, 2005.
Where is John Shaver located?
John Shaver practices at 26732 Crown Valley Pkwy Suite 351, Mission Viejo, CA 92691. The listed phone number is (949) 364-1007.
What is John Shaver's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is John Shaver enrolled in Medicare?
Yes. John Shaver 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 John Shaver's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Shaver reassigns Medicare benefits to 2 organizations: Oc Trauma Inc (Mission Viejo, CA) and South Orange County Surgical Medical Group, Inc. (Laguna Hills, 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 John Shaver'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 John Shaver was last updated on February 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# John K Shaver, M.D. · NPI 1598765729
Surgery physician in Mission Viejo, California. Individual provider, active in the CMS NPPES registry since July 29, 2005.
## Identity
- **NPI:** 1598765729 (Entity type: Individual)
- **Enumerated:** July 29, 2005
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** G67999 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 26732 CROWN VALLEY PKWY, SUITE 351, Mission Viejo, CA 92691-6306
- **Phone:** (949) 364-1007 · **Fax:** (949) 364-0317
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Oc Trauma Inc (NPI 1720516628, Mission Viejo, CA); South Orange County Surgical Medical Group, Inc. (NPI 1407860844, Laguna Hills, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Vanderbilt University School Of Medicine, class of 1988
## Record status
- **NPPES last updated:** February 23, 2016
- **Other identifiers:** Other WG67999A (CA); Medicare UPIN F58770 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1598765729) · Data from the CMS NPPES public registry.