MARIE KRISTINE HOLZAPFEL M.D.
NPI 1053639500
Obstetrics & Gynecology in Santa Clara, CA
About Marie Kristine Holzapfel M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIE KRISTINE HOLZAPFEL M.D. (NPI 1053639500) is an individual obstetrics & gynecology provider in Santa Clara, California, licensed in California (A110897) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
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
Marie Kristine Holzapfel 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 Marie Holzapfel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Lancaster, CA 93535
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of Los Angeles
- 1,939 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 95051 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.
SANTA CLARA, CA 95051
SANTA CLARA, CA 95051
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 Marie Holzapfel's NPI number?
The NPI number for Marie Holzapfel is 1053639500. It was assigned to this individual provider in the NPPES registry on May 7, 2010.
Where is Marie Holzapfel located?
Marie Holzapfel practices at 710 Lawrence Expy Dept 390, Santa Clara, CA 95051. The listed phone number is (408) 554-9820.
What is Marie Holzapfel's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Marie Holzapfel enrolled in Medicare?
Yes. Marie Holzapfel 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 Marie Holzapfel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marie Holzapfel reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Santa Clara, CA) and County Of Los Angeles Auditor Controller (Lancaster, 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 Marie Holzapfel'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 Marie Holzapfel was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Marie Kristine Holzapfel, M.D. · NPI 1053639500
Obstetrics & Gynecology physician in Santa Clara, California. Individual provider, active in the CMS NPPES registry since May 7, 2010.
## Identity
- **NPI:** 1053639500 (Entity type: Individual)
- **Enumerated:** May 7, 2010
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A110897 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 710 LAWRENCE EXPY, DEPT 390, Santa Clara, CA 95051-5173
- **Phone:** (408) 554-9820
## 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): Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA); County Of Los Angeles Auditor Controller (NPI 1366453045, Lancaster, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** December 15, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1053639500) · Data from the CMS NPPES public registry.