Ofelia Ionescu, MD
NPI 1689716953 · Psychiatry Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ofelia Ionescu, MD is a Psychiatry Physician provider in Chicago, IL (NPI 1689716953).
Provider details
- NPI number
- 1689716953
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036102819 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
647 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 199 | $122 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 133 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $132 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 67 | $77 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 37 | $110 |
| Psychiatric Diagnostic Evaluation With Medical Services |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mirtazapine | 318 | 59 |
| Clonazepam | 224 | 26 |
| Risperidone | 185 | 26 |
| Quetiapine Fumarate | 131 | 18 |
| Duloxetine Hcl | 99 | 15 |
| Divalproex Sodium | 90 | — |
| Escitalopram Oxalate | 90 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2025-10-07
- Certified
- 2025-10-07
Frequently asked questions
- What is Ofelia Ionescu's NPI number?
- Ofelia Ionescu's National Provider Identifier (NPI) is 1689716953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ofelia Ionescu's specialty?
- Ofelia Ionescu is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ofelia Ionescu located?
- Ofelia Ionescu's practice location on file with NPPES is 4700 N Marine Dr Ste 6200, Chicago, IL 60640-7972.
- What is Ofelia Ionescu's phone number?
- The practice phone number listed in the NPPES registry for Ofelia Ionescu is (773) 551-2493.
- Does Ofelia Ionescu accept Medicare?
- Ofelia Ionescu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ofelia Ionescu's NPI active?
- Yes — Ofelia Ionescu's NPI (1689716953) is active in the NPPES registry as of the last update on 2025-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.