PENELOPE DORFMAN ZEIFERT PHD
NPI 1093841611
Clinical Neuropsychologist in Stanford, CA
About Penelope Dorfman Zeifert Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PENELOPE DORFMAN ZEIFERT PHD (NPI 1093841611) is an individual clinical neuropsychologist in Stanford, California, licensed in California (PSY12493) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Penelope Dorfman Zeifert Phd 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 Reassignment
Medicare enrollment records show Penelope Zeifert reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 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 5
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.
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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Penelope Zeifert's NPI number?
The NPI number for Penelope Zeifert is 1093841611. It was assigned to this individual provider in the NPPES registry on February 26, 2007. The provider is also known as Penelope Ann Zeifert.
Where is Penelope Zeifert located?
Penelope Zeifert practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 498-7875.
What is Penelope Zeifert's specialty?
The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.
Is Penelope Zeifert enrolled in Medicare?
Yes. Penelope Zeifert 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 organization bills Medicare for Penelope Zeifert's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Penelope Zeifert reassigns Medicare benefits to Stanford Health Care (Stanford, CA). The 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 Penelope Zeifert'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 Penelope Zeifert was last updated on July 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Penelope Dorfman Zeifert, PHD · NPI 1093841611
Clinical Neuropsychologist provider in Stanford, California. Individual provider, active in the CMS NPPES registry since February 26, 2007.
## Identity
- **NPI:** 1093841611 (Entity type: Individual)
- **Enumerated:** February 26, 2007
- **Primary specialty:** Clinical Neuropsychologist · taxonomy 103G00000X
- **State license:** PSY12493 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 498-7875
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Stanford Health Care (NPI 1437292927, Stanford, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** July 6, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1093841611) · Data from the CMS NPPES public registry.