Dr. Ramon Aguilera Grijalva Jr., MD
- Medicare services, 2019
- 15
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 868
- Hospital affiliations
- 1
- Industry payments
- $2,247
- Practice address
- 10800 Magnolia Avenue, Riverside, CA 92505
- Practice phone
- Call (951) 353-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grijalva's 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. Ramon Aguilera Grijalva Jr. is an orthopedic surgeon in Riverside, California
Dr. Grijalva practices at Riverside Medical Center in Riverside, California, part of Kaiser Permanente.
Dr. Grijalva's NPI, 1023295292, was assigned on January 29, 2008. Dr. Grijalva graduated from University of California, Geffen School of Medicine in 2007. Dr. Grijalva holds California license A105392.
- NPI
- 1023295292NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123277407
- NPI enumeration date
- January 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 353-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ramon Aguilera Grijalva Jr. practices at Riverside Medical Center in Riverside, California
Dr. Grijalva's primary practice is Riverside Medical Center, at 10800 Magnolia Avenue, Riverside, CA 92505 in Riverside County. The practice phone is (951) 353-2000.
- Riverside Medical Center10800 Magnolia Avenue, Riverside, CA 92505 · Riverside CountyPhone(951) 353-2000
Source: Dmand AI Affiliation Data
Dr. Ramon Aguilera Grijalva Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Grijalva's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Grijalva to 1 more home health agency, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ramon Aguilera Grijalva Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grijalva practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside 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. Ramon Aguilera Grijalva Jr. is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Grijalva's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Grijalva is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Grijalva's licenses on file in 2 states: California and Utah.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Utah license
Orthopedic surgeons near Dr. Grijalva
Counts of orthopedic surgeons 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. Ramon Aguilera Grijalva Jr. billed Medicare for 15 services in 2019
CMS data shows 15 Medicare services from Dr. Grijalva across 1 procedure code in 2019, for 17 Medicare patients. Medicare paid $575 for them. Every service was in an office.
Dr. Grijalva compared with the California median for orthopedic surgeons, 2019
- Dr. Grijalva
- California median
- Medicare services
- 15vs 68398% below
- Medicare patients
- 17vs 21592% below
- Part D claims
- 835vs 7011.9 times
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Grijalva's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Grijalva?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grijalva and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ramon Aguilera Grijalva Jr. treated 17 Medicare patients in 2024, average age 72
CMS counts 17 Medicare patients who saw Dr. Grijalva in 2024. 75% of them have arthritis, and 65% have high cholesterol. Their average risk score is 0.86, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Grijalva's median patient age at 69, with 68% women.
Chronic conditions among Dr. Grijalva's Medicare patients, 2024
- Arthritis75%
- High cholesterol65%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grijalva's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women68%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ramon Aguilera Grijalva Jr. wrote 868 Medicare Part D claims in 2024
In 2024, Dr. Grijalva wrote 868 Medicare Part D claims for 318 patients. 99% of them were for generic drugs. CMS names the drug for 835 of them, across 10 drugs with 11 or more claims each, at $7,517 in total drug cost. In 2023, CMS named 716 claims across 9 drugs.
Dr. Grijalva's Part D claims by kind of drug, 2024
- Generic861 claims99%
- Brand-name and other7 claims1%
Dr. Grijalva's 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.
Drug classes CMS tracks in Dr. Grijalva's Part D claims, 2024
- Opioids22%188 of 868 claims
- Antibiotics16%142 of 868 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7162024: 83517%
Drugs named by CMS: 10 in 2024, 9 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. Ramon Aguilera Grijalva Jr. takes part in Medicare
Dr. Grijalva accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ramon Aguilera Grijalva Jr. received $2,247 in industry payments from 2017 to 2025
CMS Open Payments shows 30 general payments to Dr. Grijalva from 2 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 62% of the total. Zimmer Biomet Holdings, Inc. paid the most, $2,120.
General payments to Dr. Grijalva by program year, 2017 to 2025
General payments to Dr. Grijalva by kind, 2017 to 2025
- Food and beverage$1,38862%
- Education$48422%
- Travel and lodging$37517%
Companies that paid Dr. Grijalva 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. Ramon Aguilera Grijalva Jr. graduated from University of California, Geffen School of Medicine
Dr. Grijalva graduated from University of California, Geffen School of Medicine in 2007.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Sources for Dr. Ramon Aguilera Grijalva 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Ramon Aguilera Grijalva 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. Ramon Aguilera Grijalva Jr.'s NPI number?
Dr. Ramon Aguilera Grijalva Jr.'s NPI number is 1023295292. It was assigned on January 29, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ramon Aguilera Grijalva Jr.?
Dr. Ramon Aguilera Grijalva Jr. is an orthopedic surgeon in Riverside, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Ramon Aguilera Grijalva Jr. practice?
Dr. Grijalva practices at 10800 Magnolia Avenue, Riverside, CA 92505. Dr. Grijalva's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente. Dmand AI also links Dr. Grijalva to 1 home health agency.
What is Dr. Ramon Aguilera Grijalva Jr.'s office phone number?
The practice phone on file for Dr. Grijalva is (951) 353-2000.
What is Dr. Ramon Aguilera Grijalva Jr.'s medical license number?
Dr. Grijalva holds California license A105392, one of the licenses on file in 2 states.
Which states has Dr. Ramon Aguilera Grijalva Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Grijalva in California and Utah.
Which hospitals is Dr. Ramon Aguilera Grijalva Jr. affiliated with?
Dr. Grijalva practices at Riverside Medical Center in Riverside, California.
What medical group is Dr. Ramon Aguilera Grijalva Jr. part of?
Dr. Grijalva is linked to Southern California Permanente Medical Group.
Does Dr. Ramon Aguilera Grijalva Jr. accept Medicare?
Yes. CMS data shows Dr. Grijalva billed Medicare for 15 services in 2019, and Dr. Grijalva accepts Medicare assignment.
How many Medicare patients does Dr. Ramon Aguilera Grijalva Jr. see?
CMS counts 17 Medicare patients who saw Dr. Grijalva in 2024, with an average age of 72.
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Is Dr. Ramon Aguilera Grijalva Jr. board certified?
Yes. Dr. Grijalva is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Ramon Aguilera Grijalva Jr. bill to Medicare?
In 2019, Dr. Grijalva's most billed Medicare services were surgery: bones and joints (20610).
Where did Dr. Ramon Aguilera Grijalva Jr. go to medical school?
Dr. Grijalva graduated from University of California, Geffen School of Medicine in 2007.
What drugs does Dr. Ramon Aguilera Grijalva Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Grijalva's most prescribed drugs by claims were Meloxicam, Amoxicillin and Oxycodone HCl.
Has Dr. Ramon Aguilera Grijalva Jr. received payments from drug or device companies?
CMS Open Payments shows $2,247 in general payments to Dr. Grijalva from 2 companies from 2017 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Ramon Aguilera Grijalva Jr. been practicing?
Dr. Grijalva graduated from medical school in 2007, 19 years ago.
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