Physician Profile
Antonios Katsigiannis, M.D.
Unclaimed ProfileAt a glance
- 90 Morgan St, Suite 101, Stamford, CT 06905
About Dr. Katsigiannis
Antonios Katsigiannis, M.D. practices internal medicine in Stamford, CT. Antonios is a 1993 graduate of New York Medical College. According to Medicare claims data, Antonios cared for 182 Medicare patients across 296 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and electrocardiogram (ecg) 1 to 3 leads with review by physician. The provider's National Provider Identifier (NPI) is 1629157276.
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) 323-8437
- Email not available
Practice Locations
90 MORGAN ST SUITE 101
Stamford, CT 06905
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
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
- Pre-Op Clearance Exam
Heart & Circulation
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
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
296 services · 182 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Electrocardiogram (ecg) 1 to 3 leads with review by physician | Treatment | 93040 |
27 | As often as other peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
27 | As often as other 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 |
179 | As often as other 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 |
33 | Less often than most peers in Internal Medicine |
| Advance care planning, first 30 minutes | Office visit | 99497 |
16 | Less often than most peers in Internal Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
14 | 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 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 25 related providers in 4 groups
Other internists in Stamford 7
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 1993 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Electrocardiogram (ecg) 1 to 3 leads with review by physician 2
Providers in CT who bill this service to Medicare most often.
Common questions
What does Antonios Katsigiannis specialize in?
Antonios Katsigiannis is an internist in Stamford, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Antonios Katsigiannis located?
Antonios Katsigiannis is listed at 90 Morgan St Suite 101, Stamford, CT 06905. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Antonios Katsigiannis's phone number?
The number on file is (203) 323-8437. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Antonios Katsigiannis's NPI number?
Antonios Katsigiannis's National Provider Identifier is 1629157276. 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 Antonios Katsigiannis train?
Antonios Katsigiannis attended New York Medical College, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Antonios Katsigiannis been practicing?
Antonios Katsigiannis has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What does Antonios Katsigiannis do most often?
According to Medicare billing data, Antonios Katsigiannis provides treatments such as electrocardiogram 1 to 3 leads with review by physician and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Antonios Katsigiannis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Antonios Katsigiannis. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.