Irina Chilian, M.D.
NPI 1144234865 · Neurology Physician · Duarte, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irina Chilian, M.D. is a Neurology Physician provider in Duarte, CA (NPI 1144234865).
Provider details
- NPI number
- 1144234865
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A69808 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
585 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 99 | $188 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 59 | $154 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 43 | $128 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 42 | $61 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 107 | 23 |
| Gabapentin | 96 | 13 |
| Duloxetine Hcl | 74 | 18 |
| Lacosamide | 71 | 13 |
| Donepezil Hcl | 67 | 15 |
| Topiramate | 51 | 11 |
| Pregabalin | 50 | 14 |
| Ropinirole Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$25 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2020-11-24
- Certified
- 2020-11-24
Frequently asked questions
- What is Irina Chilian's NPI number?
- Irina Chilian's National Provider Identifier (NPI) is 1144234865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irina Chilian's specialty?
- Irina Chilian is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Irina Chilian located?
- Irina Chilian's practice location on file with NPPES is 1500 Duarte Rd, Duarte, CA 91010-3012.
- What is Irina Chilian's phone number?
- The practice phone number listed in the NPPES registry for Irina Chilian is (626) 256-4673.
- Does Irina Chilian accept Medicare?
- Irina Chilian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irina Chilian's NPI active?
- Yes — Irina Chilian's NPI (1144234865) is active in the NPPES registry as of the last update on 2020-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.