Doctor profile · Federal record

Dr. Ileana Pat, MD

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · West Hills, CA

  • NPI 1598775538
  • Accepts Medicare
  • 43 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
22110 Roscoe Blvd Ste 307
West Hills, CA 913043860
(818) 497-7857
fax (818) 394-6966
Mailing address
2475 Garden Falls Dr
Conroe, TX 773842122

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
September 8, 2025
Year of graduation
1983 — 43 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
California #A69940
Medicaid
WI #34344800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598775538. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
198
Distinct HCPCS
3
Medicare allowed
$23,581
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 134 62 $127
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 33 14 $36
99204 New patient office or other outpatient visit, 45-59 minutes 31 31 $174

In context: peer comparison

Among 2 peers in West Hills Endocrinology, Diabetes & Metabolism Physician, average services per provider: 341. This provider delivers 0.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$830
Transactions
41
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
Amgen INC. 11 $177.28
Mannkind Corporation 7 $137.33
Lilly USA, LLC 4 $98.13
Abbott Laboratories 4 $77.99
Novo Nordisk INC 3 $64.08
Xeris Pharmaceuticals, INC. 3 $57.61
Boehringer Ingelheim Pharmaceuticals, INC. 2 $53.95
Corcept Therapeutics 2 $52.27
Tandem Diabetes Care, INC. 2 $36.17
Sanofi-Aventis U.S. LLC 1 $32.70
Ascendis Pharma INC 1 $25.24
Bayer Healthcare Pharmaceuticals INC. 1 $17.18

By nature of payment

Food and Beverage
$830

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
496
Patients
28
Total drug cost
$149,158
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 144 28 $2,122
Jardiance (Empagliflozin) Brand 70 0 $45,360
Trulicity (Dulaglutide) Brand 33 0 $33,107
Atorvastatin Calcium Generic 30 0 $270
Metformin Hcl Generic 28 0 $439
Humalog Kwikpen U-100 (Insulin Lispro) Brand 27 0 $15,565
Alendronate Sodium Generic 25 0 $233
Testosterone Cypionate Generic 25 0 $547
Januvia (Sitagliptin Phosphate) Brand 22 0 $18,538
Gabapentin Generic 17 0 $101

Frequently asked questions

Auto-generated from federal data
What is Dr. Ileana Pat's medical specialty?
Dr. Ileana Pat practices Endocrinology, Diabetes & Metabolism Physician in West Hills, CA.
Where does Dr. Ileana Pat practice?
Dr. Ileana Pat practices at 22110 Roscoe Blvd Ste 307, West Hills, CA 913043860. Office phone: 8184977857.
What is Dr. Ileana Pat's NPI?
Dr. Ileana Pat's National Provider Identifier (NPI) is 1598775538, issued by NPPES.
Does Dr. Ileana Pat accept Medicare assignment?
Yes. Dr. Ileana Pat accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ileana Pat commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.