Dr. Riley M. Johnson, MD
- Part D claims, 2024
- 106
- Hospital affiliations
- 1
- Industry payments
- $1,135
- Medical group
- 1
- State licenses
- 2
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnson'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. Riley M. Johnson is a general surgeon in Loma Linda, California
Dr. Johnson practices at Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church.
Dr. Johnson's NPI, 1932736501, was assigned on March 24, 2020. Dr. Johnson graduated from Michigan State University College of Human Medicine in 2020. Dr. Johnson holds California license 201757.
- NPI
- 1932736501NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325439599
- NPI enumeration date
- March 24, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 558-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Riley M. Johnson practices at Loma Linda University Medical Center in Loma Linda, California
Dr. Johnson's primary practice is Loma Linda University Medical Center, at 11234 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-4000.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-4000
Source: Dmand AI Affiliation Data
Dr. Riley M. Johnson is affiliated with 2 sites of care and 1 medical group
Dr. Johnson's primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Johnson to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Riley M. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Seventh-day Adventist Church and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Riley M. Johnson is one of 2,926 general surgeons in California
Surgery is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Johnson's licenses on file in 2 states: California and Washington.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Student in an organized health care education/training program, Washington
General surgeons near Dr. Johnson
Counts of general 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. Riley M. Johnson's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 48, with 43% women.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women43%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. Riley M. Johnson wrote 106 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 106 Medicare Part D claims for 49 patients. 96% of them were for generic drugs. CMS names the drug for 29 of them, across 1 drug with 11 or more claims each, at $66 in total drug cost.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic102 claims96%
- Brand-name and other4 claims4%
Dr. Johnson'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. Johnson's Part D claims, 2024
- Opioids30%32 of 106 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Riley M. Johnson takes part in Medicare
Dr. Johnson 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. Riley M. Johnson received $1,135 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Johnson from 1 drug or device company in 2025. Education make up the largest share, 88% of the total. Intuitive Surgical, Inc. paid the most, $1,135.
General payments to Dr. Johnson by kind, 2025 to 2025
- Education$1,00088%
- Food and beverage$13512%
Companies that paid Dr. Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Riley M. Johnson graduated from Michigan State University College of Human Medicine
Dr. Johnson graduated from Michigan State University College of Human Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Riley M. Johnson'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) |
| 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. Riley M. Johnson
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. Riley M. Johnson's NPI number?
Dr. Riley M. Johnson's NPI number is 1932736501. It was assigned on March 24, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Riley M. Johnson?
Dr. Riley M. Johnson is a general surgeon in Loma Linda, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Riley M. Johnson practice?
Dr. Johnson practices at 11234 Anderson St, Loma Linda, CA 92354. Dr. Johnson's primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church. Dmand AI also links Dr. Johnson to 1 group practice or clinic.
What is Dr. Riley M. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (909) 558-4000.
What is Dr. Riley M. Johnson's medical license number?
Dr. Johnson holds California license 201757, one of the licenses on file in 2 states.
Which states has Dr. Riley M. Johnson been licensed in?
Dmand AI has state licenses on file for Dr. Johnson in California and Washington.
Which hospitals is Dr. Riley M. Johnson affiliated with?
Dr. Johnson practices at Loma Linda University Medical Center in Loma Linda, California.
What medical group is Dr. Riley M. Johnson part of?
Dr. Johnson is linked to Loma Linda University Faculty Medical Group (LLUFMG).
Does Dr. Riley M. Johnson accept Medicare?
Yes. CMS lists Dr. Johnson as accepting Medicare assignment.
Where did Dr. Riley M. Johnson go to medical school?
Dr. Johnson graduated from Michigan State University College of Human Medicine in 2020.
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What drugs does Dr. Riley M. Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Riley M. Johnson received payments from drug or device companies?
CMS Open Payments shows $1,135 in general payments to Dr. Johnson from 1 company from 2025 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Riley M. Johnson been practicing?
Dr. Johnson graduated from medical school in 2020, 6 years ago.
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