Dr. Robert G. Pretorius, MD
- Part D claims, 2024
- 33
- Publications
- 62
- Hospital affiliations
- 1
- Industry payments
- $1,082
- Medical group
- 1
- Practice address
- 9965 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente - Fontana Medical Center
Fontana, California
Find Dr. Pretorius' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert G. Pretorius is a gynecologic oncologist in Fontana, California
Dr. Pretorius practices at Kaiser Permanente - Fontana Medical Center in Fontana, California.
Dr. Pretorius' NPI, 1083766455, was assigned on January 17, 2007. Dr. Pretorius graduated from New York University School of Medicine in 1975. Dr. Pretorius holds California license G33282.
- NPI
- 1083766455NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224199542
- NPI enumeration date
- January 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert G. Pretorius practices at Kaiser Permanente - Fontana Medical Center in Fontana, California
Dr. Pretorius' primary practice is Kaiser Permanente - Fontana Medical Center, at 9965 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Kaiser Permanente - Fontana Medical Center9965 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert G. Pretorius is affiliated with 2 sites of care and 1 medical group
Dr. Pretorius' primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California. Dr. Pretorius is also affiliated with Fontana Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert G. Pretorius' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pretorius practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente - Fontana Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert G. Pretorius is one of 178 gynecologic oncologists in California
Gynecologic oncology is Dr. Pretorius' primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Pretorius is board certified in gynecologic oncology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Pretorius' licenses on file in 3 states: California, West Virginia and Vermont.
Specialties and state licenses
- Gynecologic oncology, CaliforniaPrimary
- West Virginia license
- Vermont license
Gynecologic oncologists near Dr. Pretorius
Counts of gynecologic oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert G. Pretorius' patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Pretorius' median patient age at 56, with 100% women.
Dr. Pretorius' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Robert G. Pretorius wrote 33 Medicare Part D claims in 2024
In 2024, Dr. Pretorius wrote 33 Medicare Part D claims for 11 patients. 97% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $1,240 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Pretorius' Part D claims by kind of drug, 2024
- Generic32 claims97%
- Brand-name and other1 claims3%
Dr. Pretorius' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 1645%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Robert G. Pretorius takes part in Medicare
Dr. Pretorius accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert G. Pretorius has 62 publications on record
Dmand AI links 62 papers to Dr. Pretorius, published from 2007 to 2021. 2011 was the busiest year, with 4. The most frequent topics are Uterine Cervical Neoplasms, Colposcopy and Uterine Cervical Dysplasia. Dr. Pretorius has published most often in J Low Genit Tract Dis. Dr. Pretorius' most frequent co-authors are Jerome L. Belinson, MD, Patricia Peterson and Faramarz Azizi, MD.
Dr. Pretorius' papers by year, 2007 to 2021
Topics Dr. Pretorius writes about most
- Uterine Cervical Neoplasms
- Colposcopy
- Uterine Cervical Dysplasia
- Papillomavirus Infections
- China
- Papillomaviridae
- Biopsy
- Vaginal Smears
Dr. Pretorius' most frequent co-authors
- Jerome L. Belinson, MD45 shared papers
- Patricia Peterson5 shared papers
- Faramarz Azizi, MD2 shared papers
Recent publications by Dr. Pretorius
BMC Infect Dis
See who Dr. Pretorius researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Pretorius works with, so you can find a warm path to the right gynecologic oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert G. Pretorius received $1,082 in industry payments in 2018
CMS Open Payments shows 9 general payments to Dr. Pretorius from 1 drug or device company in 2018. Travel and lodging make up the largest share, 92% of the total. Intuitive Surgical, Inc. paid the most, $1,082.
General payments to Dr. Pretorius by kind, 2018 to 2018
- Travel and lodging$99592%
- Food and beverage$868%
Companies that paid Dr. Pretorius the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert G. Pretorius has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Pretorius, most recently Top Doctors:LA Area in 2013.
Awards and honors for Dr. Pretorius
- 2013
- Top Doctors:LA Area
- Top Doctors:San Diego Area
- 2012
- Top Doctors:Southern California
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Robert G. Pretorius graduated from New York University School of Medicine
Dr. Pretorius graduated from New York University School of Medicine in 1975.
- Medical school
- Board certified in gynecologic oncology
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Robert G. Pretorius accepts plans from 1 insurance carrier
Dr. Pretorius is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Pretorius accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert G. Pretorius's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert G. Pretorius
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Robert G. Pretorius' NPI number?
Dr. Robert G. Pretorius' NPI number is 1083766455. It was assigned on January 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert G. Pretorius?
Dr. Robert G. Pretorius is a gynecologic oncologist in Fontana, California. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. Robert G. Pretorius practice?
Dr. Pretorius practices at 9965 Sierra Ave, Fontana, CA 92335. Dr. Pretorius' primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California.
What is Dr. Robert G. Pretorius' office phone number?
The practice phone on file for Dr. Pretorius is (909) 427-5000.
What is Dr. Robert G. Pretorius' medical license number?
Dr. Pretorius holds California license G33282, one of the licenses on file in 3 states.
Which states has Dr. Robert G. Pretorius been licensed in?
Dmand AI has state licenses on file for Dr. Pretorius in California (1976 to 2027), West Virginia (1993 to 1997) and Vermont (1982 to 1987).
Which hospitals is Dr. Robert G. Pretorius affiliated with?
Dr. Pretorius is affiliated with Fontana Medical Center.
What medical group is Dr. Robert G. Pretorius part of?
Dr. Pretorius is linked to Southern California Permanente Medical Group.
Does Dr. Robert G. Pretorius accept Medicare?
Yes. CMS lists Dr. Pretorius as accepting Medicare assignment.
Is Dr. Robert G. Pretorius board certified?
Yes. Dr. Pretorius is board certified in gynecologic oncology by the American Board of Obstetrics and Gynecology.
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Where did Dr. Robert G. Pretorius go to medical school?
Dr. Pretorius graduated from New York University School of Medicine in 1975.
What drugs does Dr. Robert G. Pretorius prescribe most?
In 2024 Medicare Part D data, Dr. Pretorius' most prescribed drugs by claims were Megestrol Acetate.
Has Dr. Robert G. Pretorius received payments from drug or device companies?
CMS Open Payments shows $1,082 in general payments to Dr. Pretorius from 1 company from 2018 to 2018. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Robert G. Pretorius been practicing?
Dr. Pretorius graduated from medical school in 1975, 51 years ago.
Does Dr. Robert G. Pretorius do research?
Dmand AI links 62 publications to Dr. Pretorius, published from 2007 to 2021.
Who does Dr. Robert G. Pretorius publish with?
Dr. Pretorius' most frequent co-authors are Jerome L. Belinson, MD (45 shared papers), Patricia Peterson (5 shared papers) and Faramarz Azizi, MD (2 shared papers).
What insurance does Dr. Robert G. Pretorius accept?
Dr. Pretorius is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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