Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William Ensley, MD

Individual provider Internal Medicine Physician · NPI 1376587709

William Ensley, MD is a Hospitalist in Newport Beach, California. Graduated from New York Medical College in 2002, 24 years ago. Practices with Pacific Hospitalist Associates a Medical Corporation, a 93-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Trained at
New York Medical College
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1 Hoag Dr
Newport Beach, CA 92663
Phone: (949) 574-4694
Fax: (949) 574-4680
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A84832 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A84832 (CA)

Record details

NPI number1376587709
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2006
Last updated in NPPESMay 30, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2002 (24 years in practice)
Group practice Pacific Hospitalist Associates A Medical Corporation — 93 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients376
Services billed 1,123 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Pacific Hospitalist Associates a Medical Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 93 clinicians in the practice; 12 are shown here.

Other providers in Newport Beach