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Edit this profileAt a glance
- Saint Joseph's Hospital, 703 Main Street, Paterson, NJ 07503
About Dr. Lis
Ronald Lis, M.D. practices internal medicine in Paterson, NJ. Ronald is a 1984 graduate of Rowan University School of Osteopathic Medicine. Ronald is also listed as specializing in critical care medicine, hospice & palliative medicine, and pulmonary disease. Medicare claims data shows Ronald provided 144 services to 77 patients. The services billed most often include critical care, first 30-74 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. The provider's National Provider Identifier (NPI) is 1205987021.
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
- (973) 754-2000
- Email not available
Practice Locations
SAINT JOSEPH'S HOSPITAL 703 MAIN STREET
Paterson, NJ 07503
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 clots
Blood disorders
- Anemia
Brain & Nerves
- Alzheimer's disease
Brain and nerves
- Vertigo
Cardiac and vascular
- AFib
Digestive
Heart & Circulation
- Heart disease
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
- EKG
- Spirometry
Bones & Joints
- Trigger Point Injections
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
- Endoscopy
Exams & Consultations
- Pre-Op Clearance Exam
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
- Urinalysis
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
- Ingrown toenail removal
- Suture removal
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
144 services · 77 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
87 | As often as other peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
40 | As often as other peers in Internal Medicine |
| 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 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 in Paterson 8
Same specialty, same city.
Trained at Rowan University School of Osteopathic Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Rowan University School of Osteopathic Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Ronald Lis?
Ronald Lis is an internist in Paterson, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Ronald Lis's address?
Ronald Lis is listed at Saint Joseph's Hospital 703 Main Street, Paterson, NJ 07503. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Ronald Lis?
The number on file is (973) 754-2000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Ronald Lis?
Ronald Lis's National Provider Identifier is 1205987021. 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 Ronald Lis train?
Ronald Lis attended Rowan University School of Osteopathic Medicine, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Ronald Lis have?
Ronald Lis has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What procedures does Ronald Lis perform?
According to Medicare billing data, Ronald Lis 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
Is Ronald Lis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Ronald Lis. If this is you, claiming it is free.
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