Hrayr Attarian, MD
NPI 1427089119 · Sleep Medicine (Psychiatry & Neurology) Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hrayr Attarian, MD is a Sleep Medicine (Psychiatry & Neurology) Physician provider in Chicago, IL (NPI 1427089119).
Provider details
- NPI number
- 1427089119
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036122896 (IL)
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
1,018 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 327 | $17 |
| Sleep Study Including Heart Rate, Breathing, and Sleep Time95800 | 173 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 158 | $136 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 86 | $179 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 121 | 23 |
| Gabapentin | 101 | 32 |
| Eszopiclone | 76 | 20 |
| Suvorexantbrand: Belsomra | 73 | 18 |
| Doxepin Hcl | 55 | 19 |
| Zolpidem Tartrate | 45 | 14 |
| Armodafinil | 40 | 11 |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13,735 across 12 records (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
- 2006-07-05
- Last updated
- 2014-01-29
Frequently asked questions
- What is Hrayr Attarian's NPI number?
- Hrayr Attarian's National Provider Identifier (NPI) is 1427089119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hrayr Attarian's specialty?
- Hrayr Attarian is listed in the NPPES registry with a primary specialty of Sleep Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Hrayr Attarian located?
- Hrayr Attarian's practice location on file with NPPES is 675 N Saint Clair St, Chicago, IL 60611-5975.
- What is Hrayr Attarian's phone number?
- The practice phone number listed in the NPPES registry for Hrayr Attarian is (312) 695-7950.
- Does Hrayr Attarian accept Medicare?
- Hrayr Attarian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hrayr Attarian's NPI active?
- Yes — Hrayr Attarian's NPI (1427089119) is active in the NPPES registry as of the last update on 2014-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.