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Gregory Matthew Paul Heitmann, MD

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My specialty:
Surgery: General

My provider affiliation:
Kaiser Permanente provider

I speak: English

My gender: Male

Where I practice

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About me

Thank you visiting my Web page. I am privileged to be able to practice surgery at Kaiser Permanente Woodland Hills Medical Center. I hope this page will help you start to get to know me.


I am a native of Southern California and grew up close by, in the Conejo Valley. The first hospital I ever visited was the Kaiser Permanente Woodland Hills Medical Center as a pediatric patient many years ago. I am delighted to now return and have the opportunity to care for my patients in the place that once cared for me. After earning my undergraduate degree at USC and then attending UC Irvine for medical school, I briefly left Southern California to train at UC Davis in Sacramento for my general surgery residency. I met my incredible wife in medical school, who is also a Southern California native. We always knew that we wanted to return to Southern California to practice medicine and we could not be happier to be able to practice in such a wonderful community.

About my practice

I believe that the opportunity to practice surgery is a true privilege. My goal is that my patients have a complete understanding of all options open to them and to establish the trusting relationship that is required between surgeon and patient. I perform a broad range of general surgical procedures including hernia, breast, gallbladder, colon, and thyroid disease. I also have a special interest in advance laparoscopic procedures such as paraesophageal hernia repair, Nissen fundoplication, and splenectomy. I believe that using laparoscopic surgery to perform these operations through small incisions allows my patients to experience less pain, have smaller scars and, most importantly, return to their lives more quickly.

How I thrive

Living in Southern California allows me to spend time with my family and enjoy the outdoors. I enjoy snowboarding, golfing, hiking and motorcycle riding. My wife and I have a true passion for travel and I have visited nearly 40 countries on six continents. Travel helps to quench my perpetual thirst for adventure and allows me to keep perspective in my own life. To relax, I enjoy playing the guitar and finding interesting new restaurants with my wife, who is the foodie in our family.

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My office

Languages spoken by medical staff

Help is available in your language. Learn more.

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My provider type

Physicians and Surgeons

Medical groups and plans

Southern California Permanente Medical Group

List Header Plans Accepted
  • Exclusive Provider Organization (EPO)
  • HMO
  • Medi-Cal Managed Care
  • Point-of-Service Plan (POS)
  • Senior Advantage/Medicare Cost
General Surgery Department
5601 De Soto Ave, Woodland Hills, CA 91367

I have admitting privileges at the following hospitals.

Contact information

  • Appointments/cancellations/messages
  • 1-833-574-2273 (1-833-KP4CARE) (toll free)
  • California Relay Service
  • 711 (TTY for the hearing/speech impaired)
  • General information
  • 818-719-2000
  • Inpatient room information
  • 818-719-2770

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My training, certifications and licensing

Medical school

University of California Irvine College of Medicine
Irvine , CA

Board certification


American Board of Surgery

Medical training


General Surgery

UC Davis Medical Center
Sacramento , CA


General Surgery

UC Davis Medical Center
Sacramento , CA

Joined Permanente Medical Group


Active license information

License number


License type


License issuing state


National Provider Identifier (NPI)

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My hospitals

All Kaiser Permanente physicians and podiatrists have admitting privileges or the ability to refer patients to our plan hospitals. Admitting privileges of other providers may vary by plan and facility. Contact your plan administrator for details.

5601 De Soto Ave, Woodland Hills, CA 91367

I have admitting privileges at this hospital.

Setting the standard: Measuring care quality in our hospitals(PDF)

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To find:

  • a provider's office hours, search our facility directory
  • providers in your plan or accepting new patients, call 1-800-464-4000 (toll free) or 711 (TTY for the hearing/speech impaired)

The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change. Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you have questions, please call us at 1-800-464-4000 (toll free). For the hearing and speech impaired: 1-800-464-4000 (toll free) or TTY 711 (toll free). You can also call the Medical Board of California at 916-263-2382, or visit their website.

We want to speak to you in the language that you’re most comfortable with when you call or visit us. Qualified interpreter services, including sign language, are available at no cost, 24 hours a day, 7 days a week during all hours of operations at all points of contact. We do not encourage the use of family, friends or minors as interpreters. Only the services of interpreters and qualified staff are used to provide language assistance. These may include bilingual providers, staff, and healthcare interpreters. In-person, telephone, video, and alternative modes of communication are available. Learn more about interpreter services

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Kaiser Permanente enrollees have full and equal access to covered services, including enrollees with disabilities as required under the Federal Americans with Disabilities Act of 1990 and Section 504 of the Rehabilitation Act of 1973.

Kaiser Permanente uses the same quality, member experience, or cost-related measures to select practitioners and facilities in Marketplace Silver-tier plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business.The measures may include, but are not limited to, HEDIS/CAHPS performance, member/patient complaints, patient safety scores, hospital quality measures, and geographic need. Members enrolled in KFHP Marketplace plans have access to all professional, institutional and ancillary health care providers who participate in KFHP plans’ contracted provider network, in accordance with the terms of members’ KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.
Kaiser Permanente uses the same geographic distribution consideration to select hospitals in Marketplace plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business. Accessibility of medical offices and medical centers in this directory: All Kaiser Permanente facilities are accessible to members.


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