Physician Profile
Matthew B. Maas, M.D. practices neurology / psychiatry in Chicago, IL. Matthew is a 2004 graduate of University of Washington School of Medicine. Matthew is also listed as specializing in neurology. According to Medicare claims data, Matthew cared for 80 Medicare patients across 173 services. The services billed most often include critical care, first 30-74 minutes and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes.
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.
710 N LAKE SHORE DR FL 11 DEPT OF NEUROLOGY
Chicago, IL 60611
Within Neurology and 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.
Addiction
Attention & Behavior
Autoimmune & Chronic
Balance & Nerves
Brain & Head Injury
Fatigue & Energy
Headache & Pain
Memory & Aging
Memory & Thinking
Mental Health
Mood & Anxiety
Mood & Emotion
Movement & Balance
Movement Disorders
Nerve & Spine
Nerve Pain
Nerves & Sensation
Neuromuscular
Psychosis & Thought
Seizures
Sleep
Sleep Disorders
Vascular & Brain
Vascular Brain Health
Addiction Care
Brain Monitoring
Brain Stimulation
Brain Stimulation & Infusions
Consultations
Depression Treatments
Device Management
Diagnostic Procedures
Diagnostics
General Neurology
Injections & Procedures
Medications
Movement & Balance
Movement & Nerve
Nerve & Muscle Testing
Pain & Spasticity
Pain Management
Psychiatry
Sleep Care
Sleep Studies
Testing & Assessment
Therapy
173 services · 80 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
144 | As often as other peers in Neurology / Psychiatry |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
29 | As often as other peers in Neurology / Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Matthew B. Maas is a neurology / psychiatry in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Matthew B. Maas is listed at 710 N Lake Shore Dr Fl 11 Dept of Neurology, 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) 926-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Matthew B. Maas's National Provider Identifier is 1407023088. 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
Matthew B. Maas attended University of Washington School of Medicine, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
Matthew B. Maas has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Matthew B. Maas the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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 Matthew B. Maas. 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.