Physician Profile
Katherine ARLENE ARNER Clark, M.D., MBA is a healthcare provider in New Haven, CT specializing in internal medicine. Katherine is also listed as specializing in cardiovascular disease and student in an organized health care education program. According to Medicare claims data, Katherine cared for 1,239 Medicare patients across 1,463 services. The services billed most often include ultrasound of heart with color-depicted blood flow, rate, direction and valve function, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, and ultrasound of heart, follow-up.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
20 YORK ST
New Haven, CT 06510
3701 Market Street
Philadelphia, PA 19104
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.
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
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
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
1,463 services · 1,239 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
404 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
234 | More often than most peers in Internal Medicine |
| Ultrasound of heart, follow-up | Treatment | 93308 |
160 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
155 | More than most peers in Internal Medicine |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
136 | More than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
68 | More often than most peers in Internal Medicine |
| Ultrasound of heart with probe in esophagus, with report | Treatment | 93312 |
35 | More often than most peers in Internal Medicine |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
24 | As often as other peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
135 | 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 |
36 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Katherine ARLENE ARNER Clark, M.D. 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
Katherine ARLENE ARNER Clark, M.D. 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
The number on file is (203) 688-4242. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Katherine ARLENE ARNER Clark, M.D.'s National Provider Identifier is 1417343906. 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
Katherine ARLENE ARNER Clark, M.D. attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
Katherine ARLENE ARNER Clark, M.D. has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Katherine ARLENE ARNER Clark, M.D. provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Katherine ARLENE ARNER Clark, M.D.. 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.