Dr. Ronald Jay Davidson, MD
- Medicare services, 2024
- 1,171
- Medicare patients, 2024
- 49
- Part D claims, 2024
- 670
- Hospital affiliations
- 1
- Industry payments
- $1,003
- Practice address
- 8700 Beverly Blvd, Los Angeles, CA 90048
- Practice phone
- Call (310) 423-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Davidson's professional email, personal email and mobile number
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Dr. Ronald Jay Davidson is a psychiatrist in West Hollywood, California
Dr. Davidson practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.
Dr. Davidson's NPI, 1356482384, was assigned on February 11, 2007. Dr. Davidson graduated from University of South Carolina School of Medicine in 1971. Dr. Davidson holds California license G31250.
- NPI
- 1356482384NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890958995
- NPI enumeration date
- February 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 423-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 81
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ronald Jay Davidson practices at Cedars-Sinai Medical Center in Los Angeles, California
Dr. Davidson's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.
- Cedars-Sinai Medical Center8700 Beverly Blvd, Los Angeles, CA 90048 · Los Angeles CountyPhone(310) 423-5000
Source: Dmand AI Affiliation Data
Dr. Ronald Jay Davidson is affiliated with 2 sites of care
Dr. Davidson's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dmand AI also links Dr. Davidson to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ronald Jay Davidson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Davidson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai 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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Dmand AI maps EHR vendors, IT decision makers and buying committees across Cedars-Sinai Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ronald Jay Davidson is one of 6,803 psychiatrists in California
Psychiatry is Dr. Davidson's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Davidson is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Davidson
Counts of psychiatrists 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. Ronald Jay Davidson billed Medicare for 1,171 services in 2024
CMS data shows 1,171 Medicare services from Dr. Davidson across 3 procedure codes in 2024, for 49 Medicare patients. Medicare paid $97,155 for them. Every service was in an office.
Dr. Davidson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,1942024: 1,1385%
- Office and hospital visits
- 2023: 492024: 3333%
Dr. Davidson compared with the California median for psychiatrists, 2024
- Dr. Davidson
- California median
- Medicare services
- 1,171vs 1199.8 times
- Medicare patients
- 49vs 4120% above
- Part D claims
- 553vs 1443.8 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Davidson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald Jay Davidson treated 49 Medicare patients in 2024, average age 74
CMS counts 49 Medicare patients who saw Dr. Davidson in 2024. The largest group is 75 to 84, with 20 patients. 75% of them have high blood pressure, and 75% have mood disorders. 24% are also on Medicaid. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Davidson's median patient age at 67, with 50% women.
Dr. Davidson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Davidson's Medicare patients by sex, 2024
- Women2857%
- Men2143%
Chronic conditions among Dr. Davidson's Medicare patients, 2024
- High blood pressure75%
- Mood disorders75%
- High cholesterol73%
- Depression65%
- Bipolar disorder63%
- Arthritis61%
- Anxiety51%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Davidson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald Jay Davidson wrote 670 Medicare Part D claims in 2024
In 2024, Dr. Davidson wrote 670 Medicare Part D claims for 47 patients. 91% of them were for generic drugs. CMS names the drug for 553 of them, across 19 drugs with 11 or more claims each, at $21,709 in total drug cost. In 2023, CMS named 488 claims across 18 drugs.
Dr. Davidson's Part D claims by kind of drug, 2024
- Generic608 claims91%
- Brand-name62 claims9%
Dr. Davidson'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. Davidson's Part D claims, 2024
- Antipsychotics, patients 65 and over15%98 of 670 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: 4882024: 55313%
Drugs named by CMS: 19 in 2024, 18 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. Ronald Jay Davidson takes part in Medicare
Dr. Davidson 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. Ronald Jay Davidson received $1,003 in industry payments from 2016 to 2025
CMS Open Payments shows 21 general payments to Dr. Davidson from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $492.
General payments to Dr. Davidson by program year, 2016 to 2025
Companies that paid Dr. Davidson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ronald Jay Davidson graduated from University of South Carolina School of Medicine
Dr. Davidson graduated from University of South Carolina School of Medicine in 1971.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald Jay Davidson'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) |
| 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. Ronald Jay Davidson
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. Ronald Jay Davidson's NPI number?
Dr. Ronald Jay Davidson's NPI number is 1356482384. It was assigned on February 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald Jay Davidson?
Dr. Ronald Jay Davidson is a psychiatrist in West Hollywood, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Ronald Jay Davidson practice?
Dr. Davidson practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Davidson's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dmand AI also links Dr. Davidson to 1 physician office.
What is Dr. Ronald Jay Davidson's office phone number?
The practice phone on file for Dr. Davidson is (310) 423-5000.
What is Dr. Ronald Jay Davidson's medical license number?
Dr. Davidson holds California license G31250.
Which hospitals is Dr. Ronald Jay Davidson affiliated with?
Dr. Davidson practices at Cedars-Sinai Medical Center in Los Angeles, California.
Does Dr. Ronald Jay Davidson accept Medicare?
Yes. CMS data shows Dr. Davidson billed Medicare for 1,171 services in 2024, and Dr. Davidson accepts Medicare assignment.
How many Medicare patients does Dr. Ronald Jay Davidson see?
CMS counts 49 Medicare patients who saw Dr. Davidson in 2024, with an average age of 74.
What services does Dr. Ronald Jay Davidson bill to Medicare?
In 2024, Dr. Davidson's most billed Medicare services were psychiatric service (90834), psychiatric service (90832) and office visit, established patient (99212).
Where did Dr. Ronald Jay Davidson go to medical school?
Dr. Davidson graduated from University of South Carolina School of Medicine in 1971.
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What drugs does Dr. Ronald Jay Davidson prescribe most?
In 2024 Medicare Part D data, Dr. Davidson's most prescribed drugs by claims were Lamotrigine, Divalproex Sodium and Quetiapine Fumarate.
Has Dr. Ronald Jay Davidson received payments from drug or device companies?
CMS Open Payments shows $1,003 in general payments to Dr. Davidson from 8 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Ronald Jay Davidson been practicing?
Dr. Davidson graduated from medical school in 1971, 55 years ago.
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