Physician Profile
Genta Ishikawa, M.D
Unclaimed ProfileAbout Dr. Ishikawa
Genta Ishikawa, M.D practices internal medicine in New Haven, CT. According to Medicare claims data, Genta cared for 133 Medicare patients across 195 services. The services billed most often include critical care, first 30-74 minutes, test to measure rate of airflow, and test to examine how well the lungs exchange gases.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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) 785-4162
- Email not available
Practice Locations
20 YORK ST
New Haven, CT 06510
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
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
- Overactive Bladder and Leakage
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
- Osteoarthritis
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
- Epley Maneuver
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
195 services · 133 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test to measure rate of airflow | Treatment | 94375 |
30 | As often as other peers in Internal Medicine |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
28 | Less often than most peers in Internal Medicine |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
27 | As often as other peers in Internal Medicine |
| Test for exercise-induced lung stress | Treatment | 94618 |
24 | As often as other peers in Internal Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
46 | As often as other 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 |
26 | Less often than most peers in Internal Medicine |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
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 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 — 28 related providers in 4 groups
Other internists in New Haven 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Test to measure rate of airflow 7
Providers in CT who bill this service to Medicare most often.
Common questions
What is Genta Ishikawa's specialty?
Genta Ishikawa is an internist in New Haven, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Genta Ishikawa?
Genta Ishikawa is listed at 20 York St, New Haven, CT 06510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Genta Ishikawa?
The number on file is (203) 785-4162. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Genta Ishikawa's NPI number?
Genta Ishikawa's National Provider Identifier is 1336556208. 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
What is Genta Ishikawa's education?
Genta Ishikawa attended Other, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How long has Genta Ishikawa been practicing?
Genta Ishikawa has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What is Genta Ishikawa known for?
According to Medicare billing data, Genta Ishikawa provides treatments such as test to measure rate of airflow and test to examine how well the lungs exchange gases, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Genta Ishikawa confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Genta Ishikawa. 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.