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Dr. Robert A. Casillas Jr., MD
NPI1316983117PAC ID5092718916
- Part D claims, 2024
- 86
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $14,791
- Medical group
- 1
- Practice address
- 6041 Cadillac Ave, Los Angeles, CA 90034
- Practice phone
- Call (213) 857-2201
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Casillas' 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 A. Casillas Jr. is a general surgeon in Los Angeles, California
Dr. Casillas practices at West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
Dr. Casillas' NPI, 1316983117, was assigned on June 21, 2006. Dr. Casillas graduated from David Geffen School of Medicine at UCLA in 2001. Dr. Casillas holds California license A82946.
NPI and contact details
- NPI
- 1316983117NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092718916
- NPI enumeration date
- June 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (213) 857-2201
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert A. Casillas Jr. practices at West Los Angeles Medical Center in Los Angeles, California
Dr. Casillas' primary practice is West Los Angeles Medical Center, at 6041 Cadillac Ave, Los Angeles, CA 90034 in Los Angeles County. The practice phone is (213) 857-2201.
- West Los Angeles Medical Center6041 Cadillac Ave, Los Angeles, CA 90034 · Los Angeles CountyPhone(213) 857-2201
Source: Dmand AI Affiliation Data
Dr. Robert A. Casillas Jr. is affiliated with 3 sites of care and 1 medical group
Dr. Casillas' primary practice is West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dr. Casillas is also affiliated with UC Davis Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Casillas to 1 more dialysis center, named with a free account.
UC Davis Medical CenterSouthern California Permanente Medical Group1 dialysis centerName with a free account
See all 4 affiliations for Dr. CasillasSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert A. Casillas Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Casillas practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Los Angeles Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Casillas practices
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Dr. Robert A. Casillas Jr. is one of 2,926 general surgeons in California
Surgery is Dr. Casillas' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Casillas is board certified in surgery by the American Board of Surgery. Dr. Casillas is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists appendectomy among the conditions Dr. Casillas treats.
General surgeons near Dr. Casillas
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
2,926general surgeons in California210general surgeons in Los Angeles10general surgeons at West Los Angeles Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert A. Casillas Jr.'s patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Casillas' median patient age at 44, with 75% women.
Dr. Casillas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Dr. Robert A. Casillas Jr. wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Casillas wrote 86 Medicare Part D claims for 27 patients. 93% of them were for generic drugs. CMS names the drug for 63 of them, across 4 drugs with 11 or more claims each, at $813 in total drug cost. In 2023, CMS named 55 claims across 3 drugs.
Part D claims, 202486
Drugs named by CMS4
Total drug cost$813
Part D patients27
Dr. Casillas' Part D claims by kind of drug, 2024
- Generic80 claims93%
- Brand-name and other6 claims7%
Dr. Casillas' 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: 552024: 6315%
Drugs named by CMS: 4 in 2024, 3 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 A. Casillas Jr. takes part in Medicare
Dr. Casillas 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 A. Casillas Jr. has 1 publication on record
Dmand AI links 1 paper to Dr. Casillas in 2002.
Papers1
Recent publications by Dr. Casillas
See who Dr. Casillas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Casillas works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert A. Casillas Jr. received $14,791 in industry payments from 2017 to 2025
CMS Open Payments shows 83 general payments to Dr. Casillas from 7 drug and device companies from 2017 to 2025. Travel and lodging make up the largest share, 40% of the total. Intuitive Surgical, Inc. paid the most, $11,489.
General payments to Dr. Casillas by program year, 2017 to 2025
General payments to Dr. Casillas by kind, 2017 to 2025
$14.8Kin total
- Travel and lodging$5,98040%
- Food and beverage$3,79126%
- Education$3,51924%
- Speaker and faculty fees$1,50010%
Companies that paid Dr. Casillas the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert A. Casillas Jr. has 1 award and honors on record
Dmand AI lists 1 award for Dr. Casillas, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Casillas
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Robert A. Casillas Jr. graduated from David Geffen School of Medicine at UCLA
Dr. Casillas graduated from David Geffen School of Medicine at UCLA in 2001.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Robert A. Casillas Jr. accepts plans from 2 insurance carriers
Dr. Casillas is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Casillas accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert A. Casillas Jr.'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 A. Casillas Jr.
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 A. Casillas Jr.'s NPI number?
Dr. Robert A. Casillas Jr.'s NPI number is 1316983117. It was assigned on June 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Casillas Jr.?
Dr. Robert A. Casillas Jr. is a general surgeon in Los Angeles, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Robert A. Casillas Jr. practice?
Dr. Casillas practices at 6041 Cadillac Ave, Los Angeles, CA 90034. Dr. Casillas' primary practice is West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dmand AI also links Dr. Casillas to 1 dialysis center.
What is Dr. Robert A. Casillas Jr.'s office phone number?
The practice phone on file for Dr. Casillas is (213) 857-2201.
What is Dr. Robert A. Casillas Jr.'s medical license number?
Dr. Casillas holds California license A82946.
Which hospitals is Dr. Robert A. Casillas Jr. affiliated with?
Dr. Casillas practices at West Los Angeles Medical Center in Los Angeles, California. Dr. Casillas is also affiliated with UC Davis Medical Center.
What medical group is Dr. Robert A. Casillas Jr. part of?
Dr. Casillas is linked to Southern California Permanente Medical Group.
Does Dr. Robert A. Casillas Jr. accept Medicare?
Yes. CMS lists Dr. Casillas as accepting Medicare assignment.
Is Dr. Robert A. Casillas Jr. board certified?
Yes. Dr. Casillas is board certified in surgery by the American Board of Surgery.
Where did Dr. Robert A. Casillas Jr. go to medical school?
Dr. Casillas graduated from David Geffen School of Medicine at UCLA in 2001.
Show 5 more questionsShow fewer questions
What drugs does Dr. Robert A. Casillas Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Casillas' most prescribed drugs by claims were Omeprazole, Gabapentin and Ondansetron HCl.
Has Dr. Robert A. Casillas Jr. received payments from drug or device companies?
CMS Open Payments shows $14,791 in general payments to Dr. Casillas from 7 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Robert A. Casillas Jr. been practicing?
Dr. Casillas graduated from medical school in 2001, 25 years ago.
Does Dr. Robert A. Casillas Jr. do research?
Dmand AI links 1 publication to Dr. Casillas.
What insurance does Dr. Robert A. Casillas Jr. accept?
Dr. Casillas is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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