ELLEN ELIZABETH ALLEN FNP
NPI 1457059271
Nurse Practitioner - Family in Palo Alto, CA
About Ellen Elizabeth Allen Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN ELIZABETH ALLEN FNP (NPI 1457059271) is an individual family provider in Palo Alto, California, licensed in California (95037915) and active in the NPI registry since February 2023. She is enrolled in Medicare PECOS and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ellen Elizabeth Allen Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Ellen Allen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Des Moines, IA 50309
- Reassigned Medicare billing, North Carolina enrollment
- 4 clinicians in this Medicare group
Locust, NC 28097
- Reassigned Medicare billing, North Carolina enrollment
- 106 clinicians in this Medicare group
Tampa, FL 33602
- Reassigned Medicare billing, Pennsylvania enrollment
- 32 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
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 94306 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.
PALO ALTO, CA 94306
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 Ellen Allen's NPI number?
The NPI number for Ellen Allen is 1457059271. It was assigned to this individual provider in the NPPES registry on February 21, 2023.
Where is Ellen Allen located?
Ellen Allen practices at 195 Page Mill Rd Ste 103, Palo Alto, CA 94306. The listed phone number is (888) 731-8994.
What is Ellen Allen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Ellen Allen enrolled in Medicare?
Yes. Ellen Allen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ellen Allen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Allen reassigns Medicare benefits to 3 organizations: Openloop Healthcare Partners PC (Des Moines, IA), Mainstreet And Kidsstreet Of North Carolina PLLC (Locust, NC) and Circle Medical Care Group PA (Tampa, FL). 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 Ellen Allen'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 Ellen Allen was last updated on October 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.
# Ellen Elizabeth Allen, FNP · NPI 1457059271
Family physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since February 21, 2023.
## Identity
- **NPI:** 1457059271 (Entity type: Individual)
- **Enumerated:** February 21, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95037915 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 195 PAGE MILL RD STE 103, Palo Alto, CA 94306-2073
- **Phone:** (888) 731-8994
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Openloop Healthcare Partners PC (NPI 1245820661, Des Moines, IA); Mainstreet And Kidsstreet Of North Carolina PLLC (NPI 1144803040, Locust, NC); Circle Medical Care Group PA (NPI 1972358760, Tampa, FL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1457059271) · Data from the CMS NPPES public registry.