Affiliated with a Castle Connolly Top Hospital
Who is Dr. Karthikeyan, Internist in Cleveland, OH?
What languages does Dr. Karthikeyan speak?
Dr. Karthikeyan and their clinical team can communicate with patients in the following languages:
- English
- Spanish
- Tamil
What conditions does an Internist like Dr. Karthikeyan typically treat?
As an Internist, Dr. Karthikeyan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Karthikeyan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Disorientation
- Delirium
- Mental Disorder
- Confusion
- Mental Confusion
- Loss of Bearings
ICD-10 Codes:
- R410: Disorientation, unspecified
Also known as:
- Mild Cognitive Impairment
- Cognitive and Awareness Problems
- Mental Disorder
- MCI
- Early Memory Loss
- Pre-Dementia
- Mental Function Issues
- Thinking Problems
- Awareness Difficulties
ICD-10 Codes:
- G3184: Mild cognitive impairment of uncertain or unknown etiology
- R4189: Other symptoms and signs involving cognitive functions and awareness
Also known as:
- Memory Loss
- Memory
- Amnesia
- Forgetfulness
- Loss of Recall
ICD-10 Codes:
- R413: Other amnesia
Also known as:
- Mammogram for Breast Cancer Screening
- Health Screening
- Mammography
- Breast Cancer Screening (PDQ®)
- Mammograms
- Breast X-ray
- Breast Cancer Check
ICD-10 Codes:
- Z1231: Encounter for screening mammogram for malignant neoplasm of breast
Also known as:
- Repeated Falls
- Falls
- Frequent Falling
- Recurrent Falls
- Balance Problems Leading to Falls
ICD-10 Codes:
- R296: Repeated falls
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Also known as:
- Acute Kidney Failure
- Kidney Failure
- Acute Renal Failure
- Sudden Kidney Failure
ICD-10 Codes:
- N179: Acute kidney failure, unspecified
What procedures does an Internist like Dr. Karthikeyan typically perform?
As an Internist, Dr. Karthikeyan performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Karthikeyan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Individual Speech and Language Therapy
- Speech-Language Pathology
- Voice Therapy
- Communication Disorder Treatment
- Auditory Processing Therapy
CPT Codes:
- 92507: Treatment Of Speech, Language, Voice, Communication, And/Or Auditory Processing Disorder; Individual
Does Dr. Karthikeyan accept my insurance?
Dr. Karthikeyan accepts most major insurance plans. Important: Please call our office at (330) 841-1070 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Karthikeyan accept in Cleveland, OH?
Dr. Karthikeyan in Cleveland, OH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
CareSource
Centene Corporation
CVS Health (formerly Aetna)
Devoted Health
Elevance Health Inc. (formerly Anthem)
Humana
Medical Mutual of Ohio
Medicare
State of Ohio
UnitedHealth Group
View All Insurances
Where is Dr. Karthikeyan's office located?
Dr. Nishok Karthikeyan's Primary Practice
9500 Euclid Ave
Cleveland, OH 44195
(330) 841-1070
What hospitals are Dr. Karthikeyan affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Karthikeyan has admitting privileges at the following hospitals:

Ranked General Surgery
Ranked Hernia Repair Surgery
What is Dr. Karthikeyan's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Karthikeyan's National Provider Identifier (NPI) number is 1376030049.
What common questions do patients ask about Dr. Karthikeyan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Karthikeyan
What is Dr. Nishok Karthikeyan's specialty?
What does an Internist do?
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.