Doctor profile · Federal record

Dr. William Ensley, M.D

Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Newport Beach, CA

  • NPI 1376587709
  • Accepts Medicare
  • MIPS 39.5 / 100 · 2023
  • 24 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1 Hoag Dr.
Newport Beach, CA 92663
(949) 574-4694
fax (949) 574-4680
Mailing address
Po Box 3589
Newport Beach, CA 926598589

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
May 30, 2017
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
California #A84832
Medicaid
CA #1376587709

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376587709. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,415
Distinct HCPCS
6
Medicare allowed
$187,384
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 629 221 $124
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 376 94 $114
99239 Hospital discharge day management, more than 30 minutes 162 161 $121
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 121 104 $193
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 116 115 $182
99236 Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes 11 11 $219

In context: peer comparison

Among 33 peers in this city , average services per provider: 162. This provider delivers 8.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
623
Patients
40
Total drug cost
$27,531
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 55 0 $297
Metformin Hcl Generic 55 0 $306
Tamsulosin Hcl Generic 54 0 $533
Famotidine Generic 53 0 $353
Atorvastatin Calcium Generic 52 20 $459
Eliquis (Apixaban) Brand 47 20 $13,394
Furosemide Generic 42 0 $202
Hydralazine Hcl Generic 40 0 $441
Escitalopram Oxalate Generic 37 0 $308
Lisinopril Generic 36 0 $188

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Ensley's medical specialty?
Dr. William Ensley practices Hospitalist Physician in Newport Beach, CA.
Where does Dr. William Ensley practice?
Dr. William Ensley practices at 1 Hoag Dr., Newport Beach, CA 92663. Office phone: 9495744694.
What is Dr. William Ensley's NPI?
Dr. William Ensley's National Provider Identifier (NPI) is 1376587709, issued by NPPES.
Does Dr. William Ensley accept Medicare assignment?
Yes. Dr. William Ensley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Ensley commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.