HENRY MAYO NEWHALL HOSPITAL
NPI 1780668434
General Acute Care Hospital in Valencia, CA
About Henry Mayo Newhall Hospital NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HENRY MAYO NEWHALL HOSPITAL (NPI 1780668434) is a healthcare organization registered as a general acute care hospital in Valencia, California and active in the NPI registry since December 2005. The organization lists Roger E Seaver, President And C.e.o., as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 8
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Henry Mayo Newhall Hospital is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
24Medicare enrollment records show 24 clinicians reassign Medicare billing to Henry Mayo Newhall Hospital, which bills Medicare for the services they deliver. Of these, 13 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 7
Nearest to this location (20)
See all 24Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Quality Ratings CMS Care Compare
Quality and patient-experience ratings for Henry Mayo Newhall Hospital (CMS certification number 050624), from CMS Care Compare.
Henry Mayo Newhall Hospital
Acute Care Hospitals · Valencia, CAPatient Experience
HCAHPS patient survey · Jan 2023 – Dec 2023Complications & Deaths 19
Infections 6
Unplanned Hospital Visits 14
Timely & Effective Care 17
Maternal Health 2
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 Henry Mayo Newhall Memorial Hospital's NPI number?
The NPI number for Henry Mayo Newhall Memorial Hospital is 1780668434. It was assigned to this organization in the NPPES registry on December 5, 2005. The provider is doing business as Henry Mayo Newhall Hospital.
Where is Henry Mayo Newhall Memorial Hospital located?
Henry Mayo Newhall Memorial Hospital is located at 23845 Mcbean Pkwy, Valencia, CA 91355. The listed phone number is (661) 253-8000.
What is Henry Mayo Newhall Memorial Hospital's specialty?
The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.
Is Henry Mayo Newhall Memorial Hospital enrolled in Medicare?
Yes. Henry Mayo Newhall Memorial Hospital is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Henry Mayo Newhall Memorial Hospital?
According to the CMS Revalidation Reassignment List (October 2026 release), 24 clinicians in 7 Medicare specialties reassign their Medicare billing to Henry Mayo Newhall Memorial Hospital. A 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 the clinician's services. The largest specialties are Cardiovascular Disease (Cardiology) (9), General Surgery (6) and Urology (4). Of these, 13 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Is Henry Mayo Newhall Memorial Hospital a Medicare-certified hospital?
Yes. Henry Mayo Newhall Hospital is a Medicare-certified hospital (Acute Care Hospitals).
What quality rating does Henry Mayo Newhall Memorial Hospital have?
CMS rates Henry Mayo Newhall Hospital 3 out of 5 stars overall on Care Compare, based on measures of safety, patient experience and outcomes. The full measure detail is in the Hospital Quality Ratings section above.
When was this NPI record last updated?
The NPPES record for Henry Mayo Newhall Memorial Hospital was last updated on July 10, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Henry Mayo Newhall Hospital · NPI 1780668434
General Acute Care Hospital organization in Valencia, California. Organization record, active in the CMS NPPES registry since December 5, 2005.
## Identity
- **NPI:** 1780668434 (Entity type: Organization)
- **Enumerated:** December 5, 2005
- **Primary specialty:** General Acute Care Hospital · taxonomy 282N00000X
- **Legal business name:** Henry Mayo Newhall Memorial Hospital
- **Organization subpart:** No
- **Authorized official:** Roger Seaver, PRESIDENT AND C.E.O.
## Practice location
- **Address:** 23845 MCBEAN PKWY, Valencia, CA 91355-2001
- **Phone:** (661) 253-8000 · **Fax:** (661) 200-1033
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 24 clinicians in 7 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Cardiovascular Disease (Cardiology) (9), General Surgery (6), Urology (4); 13 practice within 10 miles; [full list](https://npiprofile.com/npi/1780668434/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 10, 2014
- **Other identifiers:** Medicaid CGP006630 (CA); Medicaid ZZT40624F (CA); Medicaid ZZT30624F (CA); and 5 more
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Source: [NPI Profile](https://npiprofile.com/npi/1780668434) · Data from the CMS NPPES public registry.