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OFELIA MARTHA IONESCU MD
NPI 1689716953
Psychiatry & Neurology - Psychiatry in Chicago, IL

Active since February 13, 2007PECOS EnrolledAccepts Medicare Assignment
4700 N MARINE DR STE 6200, CHICAGO, IL 60640(773) 551-2493(773) 293-7942 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ofelia Martha Ionescu Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OFELIA MARTHA IONESCU MD (NPI 1689716953) is an individual psychiatry provider in Chicago, Illinois, licensed in Illinois (036102819) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1689716953
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameOFELIA MARTHA IONESCUCredential: MD
Location Address4700 N MARINE DR STE 6200Chicago, IL 60640-7972
Mailing Address900 N Kingsbury St Apt 1101Chicago, IL 60610-7450 · (773) 354-3473
Phone(773) 551-2493
Fax(773) 293-7942
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateFebruary 13, 2007
Last NPPES UpdateOctober 7, 2025
NPPES CertifiedOctober 7, 2025
✔ NPI 1689716953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in IL · 036102819
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
4700 N MARINE DR STE 6200, Chicago, IL 60640
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Other Identifiers 2

Medicaid036102819IL
Other1632551IL · Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ofelia Martha Ionescu Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850313768
PECOS Enrollment IDI20051220000553
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
199 services36 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
133 services24 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
108 services35 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
67 services30 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
37 services26 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
34 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60640 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

OFELIA MARTHA IONESCU LTD
Psychiatry & Neurology (Psychiatry)
4700 N MARINE DR STE 6200
CHICAGO, IL 60640
Cook County (773) 354-3473

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ofelia Ionescu's NPI number?

The NPI number for Ofelia Ionescu is 1689716953. It was assigned to this individual provider in the NPPES registry on February 13, 2007.

Where is Ofelia Ionescu located?

Ofelia Ionescu practices at 4700 N Marine Dr Ste 6200, Chicago, IL 60640. The listed phone number is (773) 551-2493.

What is Ofelia Ionescu's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Ofelia Ionescu enrolled in Medicare?

Yes. Ofelia Ionescu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ofelia Ionescu accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Ofelia Ionescu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ofelia Ionescu was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.