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- 8 W End Ave, Old Greenwich, CT 06870
About Dr. Warkol
Based in Old Greenwich, CT, Rebecca L. Warkol, MD is listed in the NPI registry under internal medicine. Rebecca graduated from New York Medical College in 2003. According to Medicare claims data, Rebecca cared for 791 Medicare patients across 1,123 services. The services billed most often include 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', established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. NPI 1184820110 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
- (203) 637-5406
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
8 W END AVE
Old Greenwich, CT 06870
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
Cancer Prevention
- Family cancer risk
Cancer risk
- Family History Of Cancer
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
- Chronic Inflammation
Heart health
- Heart Disease Risk
Infectious Disease
- Animal bite and rabies exposure
- Hepatitis B and C exposure
Infectious disease
- Measles and mumps exposure
- Traveler's diarrhea
- Shingles
Kidney health
- Early Kidney Damage
Lifestyle & wellness
- Chronic Stress And Burnout
Lifestyle health
- Unhealthy diet and nutrient deficiency
Longevity
- Accelerated Biological Aging
Metabolic & Lifestyle
- Lack of physical activity
Occupational health
- Asbestos and mineral dust exposure
- Work-Related Back Strain
Occupational Health
- Noise-induced hearing loss risk
Rashes & allergy
Sexual Health
- HIV risk and exposure
Sexual health
- STI Risk And Exposure
Substance use
- Vaping And Nicotine Addiction
Travel health
- Altitude sickness
- Travel-related Infection Risk
Wellness and energy
Workplace health
- Work-related Injury
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Kidney and urinary
Respiratory
Blood & Circulation
- Blood clots
Blood disorders
- Anemia
Brain & Nerves
Brain and nerves
- Vertigo
Cardiac and vascular
- AFib
Digestive
- Diverticulitis
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Addiction & habits
- Alcohol Reduction Counseling
Cancer screening
- Colon Cancer Screening Referral
- Lung cancer screening consult
- Mammogram Referral
Cancer Screening
- Hereditary cancer risk assessment
Checkups & exams
- Annual Wellness Exam
- Executive Physical Exam
Chronic illness
- Medication list review
- Post-hospital follow-up visit
Diagnostics & screening
Environmental health
- Heavy Metal Blood Test
- Lead blood test
- Mold Toxicity Testing
Fitness & body composition
- VO2 Max Test
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart & circulation
- Blood pressure check and medication review
Heart health
- Cardiac Stress Test Referral
Hospital-based procedures
- Inpatient medical management
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
- Hepatitis Screening And Vaccine
- Tetanus shot
Infection & Microbiology Tests
- STI and STD Screening
- H. Pylori Breath Test
Lifestyle & Prevention
- Exercise prescription and counseling
- Medical weight loss counseling
Longevity
- Biological Age Test
Lower endoscopy
- Screening colonoscopy
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Metabolic health
- Continuous Glucose Monitor Prescription
Occupational health
- Breathing test for work
- Food handler medical clearance
- Workplace breath alcohol test
Occupational Health
- Needlestick exposure evaluation
- Respirator clearance exam and fit testing
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Preventive and evaluation
- Preoperative medical clearance
- Medication management
- Post-hospital transitional care
Preventive imaging
- Abdominal Aortic Aneurysm Screening
- Full Body MRI Scan
Preventive screening
- Fall risk screening
Routine Blood Tests
Screening & labs
- Genetic Health Risk Testing
- Heart Calcium Score
- Hormone Panel Testing
Screening and diagnostic testing
- Blood pressure screening
- Cancer screening and prevention planning
- Diabetes and prediabetes screening
- EKG
- Spirometry
Screenings & Diagnostics
- Diabetes Screening and A1C Test
- Bone Density Scan Referral
Travel Health
- Travel vaccines and health advice
Travel medicine
- Altitude sickness prevention pills
- Typhoid vaccine
Wellness
Wellness & Screening
- Heart disease risk assessment
Workplace health
- Ergonomic Workstation Evaluation
- Respirator Fit Testing
- Return To Work Clearance
Skin growths
- Skin Tag Removal
Sleep
- At-home sleep test
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Bones & Joints
Brain and nerves
Digestive
- Endoscopy
Exams & Consultations
Lab tests
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
- Cryotherapy for skin lesions
- Earwax removal
- Incision and drainage of an abscess
- Skin biopsy
Pain management
- Knee Joint Injection
Preventive & Routine Care
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
1,123 services · 791 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
153 | More often than most peers in Internal Medicine |
| Assessment of emotional or behavioral problems | Treatment | 96127 |
122 | More often than most peers in Internal Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
36 | As often as other peers in Internal Medicine |
| 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' | Billing code | G2211 |
276 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
198 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
164 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
127 | As often as other peers in Internal Medicine |
| Administration of influenza virus vaccine | Billing code | G0008 |
36 | As often as other peers in Internal Medicine |
| Administration of pneumococcal vaccine | Billing code | G0009 |
11 | 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 at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 — 27 related providers in 4 groups
Other internists in Old Greenwich 3
Same specialty, same city.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in CT who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Warkol?
Dr. Warkol is an internist in Old Greenwich, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Dr. Warkol's address?
Dr. Warkol is listed at 8 W End Ave, Old Greenwich, CT 06870. 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. Warkol?
The number on file is (203) 637-5406. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Warkol's NPI number?
Dr. Warkol's National Provider Identifier is 1184820110. 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. Warkol train?
Dr. Warkol attended New York Medical College, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Warkol been practicing?
Dr. Warkol has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Warkol perform?
According to Medicare billing data, Dr. Warkol provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and assessment of emotional or behavioral problems, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Warkol confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Warkol. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.