Doctor profile · Federal record

Dr. Irina Chilian, M.D.

Neurology Physician (CMS: Neurology) · Sleep Medicine (Internal Medicine) Physician · Duarte, CA

  • NPI 1144234865
  • Accepts Medicare
  • MIPS 91.9 / 100 · 2023
  • 41 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 Duarte RD
Duarte, CA 910103012
(626) 256-4673
Mailing address
Po Box 512185
Los Angeles, CA 900510185

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
November 24, 2020
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
California #A69808
Medicaid
CA #00A698080

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144234865. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
490
Distinct HCPCS
10
Medicare allowed
$65,474
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 107 85 $151
99205 New patient office or other outpatient visit, 60-74 minutes 67 67 $190
95816 Measurement of brain wave activity (eeg), awake and drowsy 52 47 $60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 52 48 $182
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 41 30 $125
99214 Established patient office or other outpatient visit, 30-39 minutes 37 35 $103
99215 Established patient office or other outpatient visit, 40-54 minutes 27 24 $151
99443 Telephone medical discussion with physician, 21-30 minutes 27 26 $102
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 25 24 $137
99214 Established patient office or other outpatient visit, 30-39 minutes 23 21 $103

In context: peer comparison

Among 3 peers in Duarte Neurology Physician, average services per provider: 41. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Alnylam Pharmaceuticals INC. 1 $24.73

By nature of payment

Food and Beverage
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
565
Patients
80
Total drug cost
$44,488
Drug Type Claims Patients Total cost
Duloxetine Hcl Generic 77 16 $1,724
Lacosamide Generic 59 13 $13,463
Pregabalin Generic 55 0 $3,083
Levetiracetam Generic 50 15 $4,649
Donepezil Hcl Generic 46 14 $1,133
Gabapentin Generic 44 0 $933
Topiramate Generic 42 11 $1,046
Primidone Generic 36 0 $1,058
Memantine Hcl Generic 30 0 $897
Ropinirole Hcl Generic 27 11 $684

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Irina Chilian's medical specialty?
Dr. Irina Chilian practices Neurology Physician in Duarte, CA.
Where does Dr. Irina Chilian practice?
Dr. Irina Chilian practices at 1500 Duarte RD, Duarte, CA 910103012. Office phone: 6262564673.
What is Dr. Irina Chilian's NPI?
Dr. Irina Chilian's National Provider Identifier (NPI) is 1144234865, issued by NPPES.
Does Dr. Irina Chilian accept Medicare assignment?
Yes. Dr. Irina Chilian accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Irina Chilian commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205); Measurement of brain wave activity (eeg), awake and drowsy (HCPCS 95816). Source: CMS Medicare Physician & Other Practitioners file.