Dr. Mark A. Kasow, MD | Rancho Cucamonga, CA | Family Physician

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Mark Kasow treats obesity and overweight and chronic cough, and practices family medicine and anesthesiology in Rancho Cucamonga, California. He has practiced for 46 years and is affiliated with Kindred Hospital Rancho. Dr. Kasow earned his medical degree from Tulane University School of Medicine.

Overview based on verified provider data

accepting new patients
3.1

15 Ratings
46 years of experience
Tulane University School Of Medicine
5 written reviews
2 specialties
9 areas of expertise
1 hospital affiliation
2 office locations
Male

Flexible scheduling

Based on patient feedback. Read the reviews

Dr. Kasow's Ratings and Reviews

3.1

15 Ratings with 5 written Reviews

Average Wait Time 17 Minutes

How was your appointment with
Dr. Kasow?

Patients’ Perspective

Gave an accurate diagnosis: (5) Did WellNeeds Improvement (5)
Had a good bedside manner: (4) Did WellNeeds Improvement (6)
Spent time with me: (4) Did WellNeeds Improvement (6)
Provided follow-up after the visit: (4) Did WellNeeds Improvement (5)
Flexible scheduling: (7) Did WellNeeds Improvement (3)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

15 ratings & reviews

Sort:

Showing 1 to 5 of 5 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

very clean office, very professional staff, seen right away

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

December 23rd, 2014

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Spent a lot of time and answered all questions. Great doctor

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

October 29th, 2014

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I waited over 1 1/2 hours at Urgent Care and unfortunately saw this joker. He was not interested in my opinion; insisted on prescribing medication I told him I had already been trying to no affect. Bad doctor run away if you see his name connected with your clinic.

Did Well

Needs Improvement

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

August 11th, 2010

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Horrible bedside manner. Told my 4 year old he ws going to take me out back and shoot me.Didn't ask what my capabilities were due to my injury. Wasn't interested in my opinion at all.Dr. Kasow should NOT be allowed a medical license.

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

May 24th, 2009

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Kasow did not ask how long I had my condition or anything about my history. I spent less than five minutes with him. He had no interest in my opinion. YOU CAN FIND A BETTER DOCTOR.

Did Well

Flexible scheduling

Needs Improvement

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

May 2nd, 2009

Haven Elite Urgent Care

6417 Haven Ave Ste 110Rancho Cucamonga, CA 91737

Tel: (909) 941-2273

Mon9:00 am - 7:00 pm

Tue9:00 am - 7:00 pm

Wed9:00 am - 7:00 pm

Thu9:00 am - 7:00 pm

Fri9:00 am - 7:00 pm

Sat9:00 am - 5:00 pm

Sun9:00 am - 5:00 pm

West Point Medical Center

8520 Archibald Ave Ste BRancho Cucamonga, CA 91730

Mon8:00 am - 7:00 pm

Tue8:00 am - 7:00 pm

Wed8:00 am - 7:00 pm

Thu8:00 am - 7:00 pm

Fri8:00 am - 7:00 pm

Sat9:00 am - 2:00 pm

SunClosed


Dr. Mark Allan Kasow, MD	Michael Benavidez, DO	Dr. Samantha Von Ins, MD	Dr. Rolando Gomez, MD, MHA
Family Medicine	Family Medicine	Family Medicine	Family Medicine
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
3.1 (15 Ratings)	3.7 (26 Ratings)	5 (8 Ratings)	0 (0 Ratings)
46 Years of Experience	34 Years of Experience	16 Years of Experience	9 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available
	Speaks English, Spanish	Speaks Spanish, Vietnamese	Speaks English, Spanish
Rancho Cucamonga , CA	Upland , CA	Placentia , CA	Coral Gables , FL
Med School: Tulane University School Of Medicine	Med School: Western University of Health Sciences	Med School: University Of California Irvine College Of Medicine	Med School: American University Of Antigua College Of Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare

Anesthesiology
Check-up
Contraception
Family Planning
Flu (Human Influenza)
Immunization
Influenza
Weight Loss
Weight Loss (non-surgical)

Dr. Mark Allan Kasow holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Medical School

Graduated from Tulane University School Of Medicine and Tulane University School Of Medicine in 1980.

NPI Number

Dr. Kasow's NPI number is 1619946266.

Karen Shirley Fairchild
Public Health & General Preventive Medicine
44 Years Exp | Loma Linda, CA
(0)
Kathryn Lopez Echeverria
Anesthesiology
50 Years Exp | Fontana, CA
(0)
Maria Salud Garcia
Dentistry
| Rancho Mirage, CA
(0)
Kelvin Kwok-Yung Wong
Infectious Disease
60 Years Exp | Walnut, CA
(0)
Karn Danpongchareon
Anesthesiology
32 Years Exp | Alta Loma, CA
(0)
Gordon Ming Tsao
Pediatrics
43 Years Exp | Riverside, CA
(0)
Teddy Paoshan Hong
Anesthesiology
35 Years Exp | ANAHEIM, CA
(0)
Min Jung Kim
Psychiatry
50 Years Exp | Hacienda Heights, CA
(0)
Teresita Cu Torres
Anesthesiology
53 Years Exp | RIVERSIDE, CA
(0)
Kwame L White
Anesthesiology
27 Years Exp | Chino, CA
(0)

Does Dr. Mark Kasow accept my insurance?: You can see the insurance plans that Dr. Mark Kasow accepts on their Vitals profile.
Where is Dr. Mark Kasow's office located?: Dr. Mark Kasow's office is located at 6417 Haven Ave Ste 110, Rancho Cucamonga, CA, 91737.
How can I make an appointment with Dr. Mark Kasow?: You can find contact information for Dr. Mark Kasow here on Vitals.
Does Dr. Mark Kasow accept virtual/telehealth appointments?: Dr. Mark Kasow has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Mark Kasow accepting new patients?: Dr. Mark Kasow is accepting new patients on Vitals. View Dr. Mark Kasow's profile on Vitals to make an appointment.

This provider profile is built using data from:

NPPES NPI Registry
State medical licensing boards
Healthcare system and provider network data

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.