Dr. Dennis B. Diokno, MD | Petaluma, CA | Internal Medicine

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Dr. Dennis Diokno is an internal medicine physician who earned his medical degree from the Medical College of Wisconsin. With 20 years of experience in practice, he focuses on comprehensive adult healthcare and disease prevention. Dr. Diokno speaks English and provides care for patients throughout their adult years.

He practices at Kaiser Permanente South Sacramento Medical Center and sees patients at the Kaiser Permanente medical offices in Petaluma, California. Dr. Diokno specializes in managing diabetes, including Type 2 diabetes in children and teens as well as diabetes in older adults. His expertise includes ordering and interpreting essential laboratory tests such as comprehensive blood work and metabolic panels to monitor patient health. Patients have given him an average rating of 3.7 on Vitals.

AI-generated from data on this provider profile.

accepting new patients
3.7

15 Ratings
20 years of experience
16 insurance plans accepted
speaks English
Medical College Of Wisconsin
7 written reviews
1 specialty
7 areas of expertise
1 board certification
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

Dr. Diokno's Ratings and Reviews

3.7

15 Ratings with 7 written Reviews

Average Wait Time 15 Minutes

How was your appointment with
Dr. Diokno?

Patients’ Perspective

Gave an accurate diagnosis: (8) Did WellNeeds Improvement (3)
Had a good bedside manner: (8) Did WellNeeds Improvement (3)
Spent time with me: (8) Did WellNeeds Improvement (3)
Provided follow-up after the visit: (8) Did WellNeeds Improvement (3)
Flexible scheduling: (10) Did WellNeeds Improvement (1)
Saw me in a timely manner: (1) Did WellNeeds Improvement (0)
Staff was courteous: (1) Did WellNeeds Improvement (0)

15 ratings & reviews

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Showing 1 to 7 of 7 reviews

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Really cares about you and is to the point

April 22nd, 2026

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I had an appointment with Dr. Diokno I was told day-of that I needed to take a phonecall appointment hours prior to our original time to meet his convenience of scheduling. I had to step away from work first to take the preliminary call explaining that, and then to do the call with the Dr himself. My partner has the exact same diagnoses that I have and recieved specific support for those conditions I also wanted to pursue -- A work from home recommendation, and a recommendation for reduced utilities. We literally have the same 2 conditions. My partner got these on their first visit with their new Doctor, whereas Diokno told me it would be almost impossible to get. I told him I was committed to getting the care I know I need and am elligible for, I wasn't even a little rude about it, just firmly committed, and he responded to that very defensively before abruptly hanging up on me with no callback or folllow up, despite him saying we'd do blood work. Untrustworthy, condescending, rude.

May 23rd, 2025

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The best Dr!

May 22nd, 2021

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took the time to answer all Qs

March 28th, 2019

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Went with an elderly relative, as Dr. Diokno is his new PCP. Was very impressed with his demeanor and attentiveness. He ordered labs to get a baseline and was more thorough than his last doctor. We didn't feel rushed at all.

February 13th, 2019

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I had 2 kaiser phone appointments with this doctor and was shocked to realize that he has no time for his patients concerns. Extremely in hurry to hung up the phone. I had to pull on the call just to get all my doubts cleared. Dissatisfied!

April 8th, 2015

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Dr.Diokno was extremely rushed and just threw his papers on the table before walking in. He did not do a physical examination and just ordered tests. He did not give any medical advice and just told me how to get my lab tests done. I was quite shocked and have been contemplating if I should even change my insurance from Kaiser if other physicians would act like Dr.Diokno. I am extremely disappointed. I never write negative reviews and this is my first time to make sure someone else doesn't end up wasting time with a doctor like this.

March 11th, 2015

Kaiser Permanente Petaluma Medical Offices

3900 Lakeville HwyPetaluma, CA 94954

Tel: (707) 765-3900

Mon8:30 am - 5:00 pm

Tue8:30 am - 5:00 pm

Wed8:30 am - 5:00 pm

Thu8:30 am - 5:00 pm

Fri8:30 am - 5:00 pm

SatClosed

SunClosed


Dr. Dennis Bondad Diokno, MD	Dr. Daniel Benhuri, MD	Karthikeyan Viswanathan, DO	Dr. Nima Ghadimi, MD
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
3.7 (15 Ratings)	0 (0 Ratings)	0 (0 Ratings)	3.8 (27 Ratings)
20 Years of Experience	8 Years of Experience	12 Years of Experience	29 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English	Speaks English, Tamil	Speaks English, Spanish
Petaluma , CA	Beverly Hills , CA	Los Altos , CA	Scottsdale , AZ
Med School: Medical College Of Wisconsin	Med School: Icahn School of Medicine at Mount Sinai	Med School: Bassett Medical Center - Cooperstown, New York	Med School: Univ Iberoamericana Unibe Santo Domingo
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Accepts Medicaid
Aetna
Alameda Alliance for Health
Alameda Alliance for Health - Medicaid (Managed)
BLUE CROSS of CALIFORNIA
Blue Shield of California
Cigna
Contra Costa Health Plan
Health Plan of San Joaquin - Medicaid (Managed)
Kaiser Permanente
Kaiser Permanente - DHMO
Kaiser Permanente - HMO
Kaiser Permanente - Medicare
Medicare
Medicare - Medicare
Three Rivers Providers Network (TRPN) - Medicaid (Managed)
UnitedHealthcare

Internal Medicine

Check-up
Heartburn
Immunization
Physical
Vaccination
Weight Loss
Weight Loss (non-surgical)

MEDICAL LICENSE

Medical Doctor, California, 2025, Expired

EDUCATION & TRAINING

Medical School

Medical College Of WisconsinGraduated in 2006

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Where is Dr. Dennis Diokno's office located?: Dr. Dennis Diokno's office is located at 3900 Lakeville Hwy, Petaluma, CA, 94954.
Is Dr. Dennis Diokno accepting new patients?: Dr. Dennis Diokno is accepting new patients on Vitals. View Dr. Dennis Diokno's profile on Vitals to make an appointment.
Does Dr. Dennis Diokno accept my insurance?: You can see the insurance plans that Dr. Dennis Diokno accepts on their Vitals profile.
How can I make an appointment with Dr. Dennis Diokno?: You can find contact information for Dr. Dennis Diokno here on Vitals.
Does Dr. Dennis Diokno accept virtual/telehealth appointments?: Dr. Dennis Diokno has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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