Physician Profile
Irwin D. Feintzeig, M.D.
Unclaimed ProfileAbout Dr. Feintzeig
Irwin D. Feintzeig, M.D. practices nephrology in Trumbull, CT. Irwin is also listed as specializing in internal medicine. Medicare claims data shows Irwin provided 542 services to 298 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, dialysis services, 4 or more physician visits per month (20 years or older), and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (203) 335-0195
- Email not available
Practice Locations
7 CAMBRIDGE DR STE 201
Trumbull, CT 06611
Conditions Commonly Evaluated or Treated
Within Nephrology 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
- Chronic kidney disease
- High blood pressure
- Kidney failure
- Kidney stones
Acid-base disorders
- Acid in blood
Anatomical conditions
- Shrinking kidneys
- Single kidney health
Autoimmune conditions
- IgA kidney disease
- Lupus kidney disease
Blood disorders
- Anemia from kidney disease
Blood pressure
- Resistant hypertension
Cysts and growths
- Kidney Cyst
Diabetes complications
- Kidney disease from diabetes
Dialysis complications
- Dialysis Low Blood Pressure
Electrolyte disorders
- High calcium
- High Magnesium
- High phosphorus
- Low Magnesium
- Low sodium or electrolyte imbalance
Fluid retention
- Excess fluid buildup
- Poor Circulation and Swollen Legs
Genetic disorders
- Inherited kidney disease
- Polycystic kidney disease
Hormone disorders
- Overactive parathyroid from kidney disease
Infections
- Kidney infection
Inflammatory conditions
- FSGS
- Membranous kidney disease
- Minimal change disease
Kidney damage
- Kidney damage from medications
- Kidney Scarring
Kidney failure
- Acute kidney injury
Kidney filter diseases
- C3 Glomerulopathy
Lab abnormalities
- High BUN levels
- High creatinine levels
- Low filtration rate
Metabolic disorders
- Gout
Multi-organ conditions
- Heart And Kidney Failure
Structural kidney issues
- Hydronephrosis
- Vesicoureteral reflux
Symptoms
- Flank pain
Urine abnormalities
- Blood in the urine
- Kidney Disease
Urine symptoms
- Foamy Urine
- Waking Up to Pee
Vascular conditions
- Narrow kidney artery
Vascular kidney issues
- Kidney Blood Clot
Procedures & services
Most searched procedures
- Dialysis
- Kidney transplant follow-up
Consultations
- Kidney Medication Safety Review
- Kidney specialist second opinion
Diagnostic tests
- Ambulatory blood-pressure monitoring
Diagnostics
- Genetic testing for kidney disease
- Kidney biopsy
Dialysis
- Continuous Dialysis in the ICU
- Overnight Dialysis
- Peritoneal Dialysis
Dialysis access
- Dialysis Access Physical Exam
- Dialysis Catheter Removal
- Dialysis Fistula Repair
- Temporary Dialysis Line Placement
Diet and nutrition
- Kidney Disease Diet Planning
Imaging
- Blood flow test for kidneys
- Fistula ultrasound
- Kidney CT Scan
- Kidney MRI
- Kidney ultrasound
Infusions
- Immune therapy for kidney inflammation
- Iron Infusion
Interventional procedures
- Kidney cyst drainage
- Renal artery stenting
Lab tests
- 24-hour urine test
- Comprehensive Metabolic Panel
- Kidney Function Blood Test
- Parathyroid hormone monitoring
- Urine protein check
- Urine sediment test
Medication management
- Active Vitamin D Therapy
- Resistant Blood Pressure Medication Adjustment
- Steroid Therapy For Kidney Inflammation
Medication therapy
- Acid reducer treatment for kidneys
- Phosphate binder therapy
- Potassium lowering treatment
- Red blood cell booster injections
- Water pill adjustment
Patient education
- Home dialysis training
Prevention
- Kidney Stone Prevention Evaluation
Procedures
- High Blood Pressure Nerve Treatment
Specialized therapies
- Extracorporeal fluid removal
- Plasmapheresis
Supportive care
- Supportive Kidney Care Without Dialysis
Surgical procedures
- Dialysis access surgery
Transplant care
- Anti-Rejection Medication Monitoring
- Kidney transplant evaluation
- Living kidney donor evaluation
Vascular access
- Belly catheter placement
- Dialysis catheter placement
- Dialysis fistula declotting
Procedures Most Often Billed to Medicare
542 services · 298 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
150 |
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
55 |
| Home dialysis services per month (20 years or older) | Treatment | 90966 |
18 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
155 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
94 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
44 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
26 |
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 kidney specialists at this location 7
Same specialty, same street address — most likely the same department or group.
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.
Also performs Dialysis services, 4 or more physician visits per month (20 years or older) 6
Providers in CT who bill this service to Medicare most often.
Common questions
What is Irwin D. Feintzeig's specialty?
Irwin D. Feintzeig is a kidney specialist in Trumbull, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
Where can I find Irwin D. Feintzeig?
Irwin D. Feintzeig is listed at 7 Cambridge Dr Ste 201, Trumbull, CT 06611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Irwin D. Feintzeig?
The number on file is (203) 335-0195. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Irwin D. Feintzeig?
Irwin D. Feintzeig's National Provider Identifier is 1902805773. 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
How much experience does Irwin D. Feintzeig have?
Irwin D. Feintzeig has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Irwin D. Feintzeig known for?
According to Medicare billing data, Irwin D. Feintzeig provides treatments such as dialysis services, 4 or more physician visits per month and hemodialysis procedure with physician evaluation, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Irwin D. Feintzeig's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Irwin D. Feintzeig. 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.