CHRISTIAN KARL ANTONIO
NPI 1003436528
Nurse Practitioner - Acute Care in San Francisco, CA
About Christian Karl Antonio NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTIAN KARL ANTONIO (NPI 1003436528) is an individual acute care provider in San Francisco, California, licensed in California (700718) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Christian Karl Antonio is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
10Medicare enrollment records show Christian Karl Antonio reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 723 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94117
- Reassigned Medicare billing, California enrollment
- 132 clinicians in this Medicare group
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 87 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 94143 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Christian Karl Antonio's NPI number?
The NPI number for Christian Karl Antonio is 1003436528. It was assigned to this individual provider in the NPPES registry on April 24, 2020.
Where is Christian Karl Antonio located?
Christian Karl Antonio practices at 505 Parnassus Avennue, San Francisco, CA 94143. The listed phone number is (415) 353-1621.
What is Christian Karl Antonio's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Christian Karl Antonio enrolled in Medicare?
Yes. Christian Karl Antonio is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Christian Karl Antonio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christian Karl Antonio reassigns Medicare benefits to 10 organizations: Regents Of The University Of California (San Francisco, CA), Ucsf Dept Of Surgery (San Francisco, CA), Ucsf Pediatrics Associates (San Francisco, CA), University Anesthesia Medical Group (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and 5 more organizations, listed in the Medicare section above. 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 Christian Karl Antonio'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 Christian Karl Antonio was last updated on April 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Christian Karl Antonio · NPI 1003436528
Acute Care physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 24, 2020.
## Identity
- **NPI:** 1003436528 (Entity type: Individual)
- **Enumerated:** April 24, 2020
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 700718 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 505 PARNASSUS AVENNUE, San Francisco, CA 94143
- **Phone:** (415) 353-1621
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1376613943, San Francisco, CA); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA); University Anesthesia Medical Group (NPI 1528137296, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); and 5 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1003436528) · Data from the CMS NPPES public registry.