Physician Profile
Martin L. Greenwald, M.D.
Unclaimed ProfileAbout Dr. Greenwald
Based in Winfield, IL, Martin L. Greenwald, M.D. is listed in the NPI registry under psychiatry. Martin graduated from University of Chicago, Pritzker School of Medicine in 2016. Martin is also listed as specializing in sleep medicine (neurology). According to Medicare claims data, Martin cared for 87 Medicare patients across 194 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and hospital discharge day management, more than 30 minutes. NPI 1093164238 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (630) 933-4200
- Email not available
Practice Locations
25 N WINFIELD RD STE 410
Winfield, IL 60190
Conditions Commonly Evaluated or Treated
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.
Conditions
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
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
Procedures Most Often Billed to Medicare
194 services · 87 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
88 | As often as other peers in Psychiatry |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
66 | As often as other peers in Psychiatry |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
23 | As often as other peers in Psychiatry |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
17 | 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.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatrists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other psychiatrists in Winfield 7
Same specialty, same city.
Trained at University of Chicago, Pritzker School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at University of Chicago, Pritzker School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Martin L. Greenwald specialize in?
Martin L. Greenwald is a psychiatrist in Winfield, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where is Martin L. Greenwald located?
Martin L. Greenwald is listed at 25 N Winfield Rd Ste 410, Winfield, IL 60190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Martin L. Greenwald's phone number?
The number on file is (630) 933-4200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Martin L. Greenwald's NPI number?
Martin L. Greenwald's National Provider Identifier is 1093164238. 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
Where did Martin L. Greenwald train?
Martin L. Greenwald attended University of Chicago, Pritzker School of Medicine, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Martin L. Greenwald been practicing?
Martin L. Greenwald has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Martin L. Greenwald do most often?
According to Medicare billing data, Martin L. Greenwald 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
Has Martin L. Greenwald confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Martin L. Greenwald. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.