Vadak H. Ranganathan, MD | Lima, OH | Neurologist

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Dr. Vadak Ranganathan is a neurologist who specializes in diagnosing and treating disorders of the nervous system. He earned his medical degree from Kakatiya Medical College and completed his residency training at Oregon Health Sciences University Hospital. Dr. Ranganathan speaks English fluently.

Dr. Ranganathan practices at Mercy Health Springfield Regional Medical Center and sees patients in Lima, Ohio. He focuses on treating headaches and migraine headaches, helping patients find relief from these often debilitating conditions. His expertise includes performing electromyogram and nerve conduction studies to evaluate nerve and muscle function, as well as utilizing MRI imaging for comprehensive neurological assessments. Patients have given him an average rating of 3.2 out of 5 on Vitals.

Overview based on verified provider data

accepting new patients
3.2

40 Ratings
51 insurance plans accepted
speaks English
Oregon Health Sciences University Hospital
26 written reviews
1 specialty
9 areas of expertise
1 hospital affiliation
1 office location
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Vadak H. Ranganathan's Ratings and Reviews

3.2

40 Ratings with 26 written Reviews

Average Wait Time 37 Minutes

How was your appointment with
Vadak Ranganathan?

Patients’ Perspective

Gave an accurate diagnosis: (14) Did WellNeeds Improvement (7)
Had a good bedside manner: (11) Did WellNeeds Improvement (7)
Spent time with me: (14) Did WellNeeds Improvement (5)
Provided follow-up after the visit: (9) Did WellNeeds Improvement (7)
Flexible scheduling: (11) Did WellNeeds Improvement (7)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

40 ratings & reviews

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Showing 1 to 10 of 26 reviews

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Long Wait times over 1 hour to be seen. Unprofessional staff. Over a month for results of testing after multiple requests. Worst experience with a doctor in my life!, wasted my time. He doesn’t even know what he’s talking about. He acts like he has dementia and always confused. I don’t know how he is even practicing. Can never get through to the office when calling for medication refills. Overall he is the worst doctor I have ever seen in my life.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

October 3rd, 2025

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He is a very good Doctor. Ive seem him at the hospital and in his office. He is straight up and honest Doctor. Ive seen him for a few years now that Dr Chada retierd, he took me in as a new patient when I had no one. I would recommend him to everyone

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

November 26th, 2021

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DR RANGANATAN IS A GOOD DR. HE ALWAYS TAKES HIS TIME WITH ME AND ANWSERS ALL MY QUESTIONS.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

November 24th, 2021

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GOOD DR

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

November 4th, 2021

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Very nice Listens to your concerns then address them each one individually Patient weight time is slow He is trying to get to the root of each issue.

Did Well

Had a good bedside manner
Provided follow-up after the visit

Needs Improvement

November 4th, 2020

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Great Dr. Staff is friendly and helpful

Did Well

Gave an accurate diagnosis

Needs Improvement

September 23rd, 2020

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good Doc No great Doc

Did Well

Gave an accurate diagnosis
Spent time with me
Flexible scheduling

Needs Improvement

August 25th, 2020

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I am providing this review after my mother who is being treated for dementia suffered a stroke in 2019. Dr Ranganathan and his office staff have provided and continue to provide excellent professional and courteous care for my mother and our family. We are pleased with the services and care>That has been and continues to be provided to us. Would greatly recommend him and his office staff to anyone in need of expert Neurological care in the Springfield area. Very high recommend! 5 stars

March 12th, 2020

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I'm pleased with the service. Rosa

March 5th, 2020

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I've been seeing doctor or sometime,he's a good doctor. He listens ad discusses everything. Theresa

March 5th, 2020

Lima Memorial Health System Neurology

1005 Bellefontaine Ave Ste 350Lima, OH 45804

Tel: (419) 998-8200

Mon8:00 am - 4:00 pm

Tue8:00 am - 4:00 pm

Wed8:00 am - 4:00 pm

Thu8:00 am - 4:00 pm

FriClosed

SatClosed

SunClosed


Vadak H. Ranganathan, MD	Dr. Cinthi Pillai, MD	Dr. Shan Patel, PsyD	Dr. Natasha Jo Alexander, DO
Neurology	Neurology	Neurology	Neurology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
3.2 (40 Ratings)	0 (0 Ratings)	5 (2 Ratings)	4.1 (10 Ratings)
	20 Years of Experience	13 Years of Experience	16 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	No Virtual Visit Option
Speaks English	Speaks English	Speaks English, Hindi, Gujarati	Speaks English
Lima , OH	New York , NY	Tampa , FL	Saint Marys , OH
Med School: Kakatiya Medical College	Med School: Newcastle University UK		Med School: Ohio University College Of Osteopathic Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Neurology

Alzheimer's Disease
Electromyography
Epilepsy
Headache
Migraine Disorder
Migraine Disorders
Multiple Sclerosis (MS)
Nerve Conduction Studies
Stroke

Vadak H. Ranganathan holds an expired medical license in the state of Ohio.

Medical License

Medical Doctor with an expired medical license in the state of Ohio that expired in 2026.

Education & Training

Residency

Completed their residency at Oregon Health Sciences University Hospital.

Medical School

Graduated from Kakatiya Medical College.

NPI Number

Vadak H. Ranganathan's NPI number is 1992773212.

Dr. Yonghyun Kim
Neurology
45 Years Exp | Lima, OH
(0)
Katherine Thomas Zwiebel
Nurse Practitioner
| Saint Marys, OH
(0)
Dr. Jatinder Singh Patti
Neurology
26 Years Exp | Findlay, OH
(0)
Dr. Vishnumurthy Shushrutha Hedna, MD
Neurology
27 Years Exp | New Albany, IN
(22)
Dr. Tae Ahn Thomas Lee, MD
Geriatric Medicine
| Lima, OH
(0)
Dr. Michael J Koval, MD
Neurology
| Middle Point, OH
(6)
Dr. Leanna M Withrow, DO
Neurology
19 Years Exp | London, OH
(9)
Dr. Sonal Sinha, MD
Psychiatry
16 Years Exp | Lima, OH
(3)
Dr. Patricia Christina Bauza, MD
Psychiatry
20 Years Exp | Silver Spring, MD
(21)
Dr. Louis Anthony Tartaglia, MD
Sleep Medicine
48 Years Exp | Maumee, OH
(33)

How can I make an appointment with Vadak Ranganathan?: You can find contact information for Vadak Ranganathan here on Vitals.
Where is Vadak Ranganathan's office located?: Vadak Ranganathan's office is located at 1005 Bellefontaine Ave Ste 350, Lima, OH, 45804.
Is Vadak Ranganathan accepting new patients?: Vadak Ranganathan is accepting new patients on Vitals. View Vadak Ranganathan's profile on Vitals to make an appointment.
Does Vadak Ranganathan accept my insurance?: You can see the insurance plans that Vadak Ranganathan accepts on their Vitals profile.
Which hospitals is Vadak Ranganathan affiliated with?: Vadak Ranganathan is affiliated with Mercy Health Springfield Regional Medical Center.

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