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Edit this profileAt a glance
- 5841 S Maryland Ave # Mc5040, Chicago, IL 60637
About Dr. Okash
Based in Chicago, IL, Mahmoud M. Okash, MD is listed in the NPI registry under thoracic surgery. Mahmoud is also listed as specializing in thoracic surgery (cardiothoracic). According to Medicare claims data, Mahmoud cared for 805 Medicare patients across 2,186 services. The services billed most often include subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, and residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes. NPI 1194129692 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
- (773) 702-1000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
5841 S MARYLAND AVE # MC5040
Chicago, IL 60637
Conditions Commonly Evaluated or Treated
Within Thoracic Surgery 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
Airway
Chest tumors
Chest wall
Diaphragm
Esophagus
Esophagus and stomach
- Acid reflux
- Barrett's esophagus
- Esophageal cancer
- Esophageal pouch
- Esophagus tear
- Hiatal hernia
- Swallowing difficulties
Heart lining
Infection
Lung
Lung cancer
Lung conditions
Nerves
Nerves and blood vessels
Neuromuscular
Pleural disease
Sweating disorders
Trauma
Vascular
Procedures & services
Airway
Airway surgery
Chest tumors
Chest wall
Chest wall surgery
- Broken rib plating surgery
- Chest wall reconstruction
- Sunken chest repair
- Thoracic Outlet Decompression
Diagnostic tests
Diagnostics
Diaphragm
Diaphragm surgery
Emphysema
Esophagus
Esophagus surgery
- Acid reflux surgery
- Esophageal dilation
- Esophageal stent placement
- Esophagus removal surgery
- Hiatal hernia surgery
- Peroral endoscopic myotomy
Fluid drainage
Heart lining
Lung surgery
- Collapsed lung surgery
- Lung cancer surgery
- Lung lining scraping and cleaning
- Lung nodule removal
- Lung valve placement for emphysema
- Minimally invasive lung surgery
Nerves
Pleural disease
Robotic surgery
Surgical approach
Sweat surgery
Transplant
Trauma
Procedures Most Often Billed to Medicare
2,186 services · 805 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of skin and tissue, each additional 20.0 sq cm or less | Procedure | 11045 |
166 |
| Removal of skin and tissue, 20.0 sq cm or less | Procedure | 11042 |
140 |
| Removal of muscle and/or tissue, each additional 20.0 sq cm or less | Procedure | 11046 |
66 |
| Removal of muscle and/or tissue, 20.0 sq cm or less | Procedure | 11043 |
66 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
778 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
430 |
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99348 |
198 |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
162 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
55 |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
39 |
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.
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.
Trained at Other 1
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 2009 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Okash?
Dr. Okash is a thoracic surgeon in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Thoracic Surgery”.
NPI registry
What is Dr. Okash's address?
Dr. Okash is listed at 5841 S Maryland Ave # Mc5040, Chicago, IL 60637. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Okash?
The number on file is (773) 702-1000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Okash's NPI number?
Dr. Okash's National Provider Identifier is 1194129692. 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 Dr. Okash train?
Dr. Okash attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Okash been practicing?
Dr. Okash has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Okash perform?
According to Medicare billing data, Dr. Okash performs procedures including removal of skin and tissue, each additional 20.0 sq cm or less, removal of skin and tissue, 20.0 sq cm or less and removal of muscle and/or tissue, each additional 20.0 sq cm or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Okash confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Okash. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.