Provider Profile
Malik Nassan, MBBS practices psychiatry in Chicago, IL. According to Medicare claims data, Malik cared for 590 Medicare patients across 674 services. The services billed most often include prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or, 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', and psychiatric diagnostic evaluation with medical services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
676 N SAINT CLAIR ST STE 945
Chicago, IL 60611
200 1st St SW
Rochester, MN 55905
Within Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Most searched procedures
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
674 services · 590 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
121 | More than most peers in Psychiatry |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
165 | More often than most peers in Psychiatry |
| 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' | Billing code | G2211 |
122 | More often than most peers in Psychiatry |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
90 | More than most peers in Psychiatry |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
52 | As often as other peers in Psychiatry |
| Online digital evaluation and management service for an established patient for up to 7 days, total time 21 or more minutes | Office visit | 99423 |
45 | Too few peers to compare |
| Assessment of and care planning for patient with impaired thought processing, typically 60 minutes | Office visit | 99483 |
35 | Too few peers to compare |
| Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes | Office visit | 99422 |
30 | Too few peers to compare |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
14 | Less often than most peers in Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Malik Nassan is a psychiatrist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Malik Nassan is listed at 676 N Saint Clair St Ste 945, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (312) 695-9627. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Malik Nassan's National Provider Identifier is 1942650130. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Malik Nassan attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
Malik Nassan has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Malik Nassan provides treatments such as psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Malik Nassan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.