At a glance
- 1550 N Northwest Hwy, Suite 209, Park Ridge, IL 60068
About Dr. Leszczak
Jaroslaw R. Leszczak, MD is a healthcare provider in Park Ridge, IL specializing in internal medicine. According to Medicare claims data, Jaroslaw cared for 1,983 Medicare patients across 11,565 services. The services billed most often include injection, methylprednisolone acetate, 1 mg, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and 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'. This provider record is associated with NPI 1588606222.
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
- (847) 653-8413
- Email not available
Practice Locations
1550 N NORTHWEST HWY SUITE 209
Park Ridge, IL 60068
Conditions Commonly Evaluated or Treated
Within Internal Medicine 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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
- Impetigo
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
- Cryotherapy for skin lesions
- Earwax removal
- Incision and drainage of an abscess
- Skin biopsy
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
- Smoking cessation counseling
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
11,565 services · 1,983 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
227 | More than most peers in Internal Medicine |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
48 | As often as other peers in Internal Medicine |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
28 | Less often than most peers in Internal Medicine |
| Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes | Treatment | 97110 |
499 | As often as other peers in Internal Medicine |
| Therapy procedure using manual technique, each 15 minutes | Treatment | 97140 |
431 | More often than most peers in Internal Medicine |
| Therapy procedure for walking training, each 15 minutes | Treatment | 97116 |
241 | Too few peers to compare |
| Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes | Treatment | 97112 |
241 | As often as other peers in Internal Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
123 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
55 | More often than most peers in Internal Medicine |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
48 | As often as other peers in Internal Medicine |
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 internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 — 32 related providers in 4 groups
Other internists in Park Ridge 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Leszczak specialize in?
Dr. Leszczak is an internist in Park Ridge, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Leszczak located?
Dr. Leszczak is listed at 1550 N Northwest Hwy Suite 209, Park Ridge, IL 60068. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Leszczak's phone number?
The number on file is (847) 653-8413. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Leszczak's NPI number?
Dr. Leszczak's National Provider Identifier is 1588606222. 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. Leszczak go to medical school?
Dr. Leszczak attended Other, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Leszczak been practicing?
Dr. Leszczak has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Leszczak do most often?
According to Medicare billing data, Dr. Leszczak performs procedures including aspiration and/or injection of fluid from large joint and aspiration and/or injection of fluid large joint using ultrasound guidance; reads or performs imaging such as nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes and therapy procedure using manual technique, each 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Leszczak confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leszczak. If this is you, claiming it is free.
Guide.md
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