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Dr. Rex Scott Adamson, MD
NPI1053416701
- Medicare services, 2024
- 984
- Medicare patients, 2024
- 98
- Part D claims, 2024
- 4,931
- Publications
- 1
- Industry payments
- $1,120
- Practice address
- 1501 Claus Road, Modesto, CA 95355
- Practice phone
- Call (209) 557-6300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Doctors Behavioral Health Center - Modesto
Psychiatric Inpatient Facility · Modesto, California
Find Dr. Adamson's professional email, personal email and mobile number
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Dr. Rex Scott Adamson is a psychiatrist in Modesto, California
Dr. Adamson practices at Doctors Behavioral Health Center - Modesto in Modesto, California.
Dr. Adamson's NPI, 1053416701, was assigned on September 14, 2006. Dr. Adamson graduated from UC Davis School of Medicine in 1990. Dr. Adamson holds California license G85915.
NPI and contact details
- NPI
- 1053416701NPI Registry (opens in a new tab)
- NPI enumeration date
- September 14, 2006
- NPI status
- Active
- Practice phone
- (209) 557-6300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Rex Scott Adamson practices at Doctors Behavioral Health Center - Modesto in Modesto, California
Dr. Adamson's primary practice is Doctors Behavioral Health Center - Modesto, at 1501 Claus Road, Modesto, CA 95355. The practice phone is (209) 557-6300.
- Doctors Behavioral Health Center - Modesto1501 Claus Road, Modesto, CA 95355Phone(209) 557-6300
Source: Dmand AI Affiliation Data
Dr. Rex Scott Adamson is affiliated with 2 sites of care
Dr. Adamson's primary practice is Doctors Behavioral Health Center - Modesto in Modesto, California. Dmand AI also links Dr. Adamson to 1 physician office, named with a free account. Dr. Adamson's employer is on file too: a behavioral health center.
Doctors Behavioral Health Center - ModestoPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rex Scott Adamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Adamson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Doctors Behavioral Health Center - Modesto | 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. Rex Scott Adamson is one of 6,803 psychiatrists in California
Psychiatry is Dr. Adamson's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Adamson's licenses on file in 2 states: California and West Virginia.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- West Virginia license
Clinical focus
Dmand AI lists psychoses and schizophrenia among the conditions Dr. Adamson treats.
Psychiatrists near Dr. Adamson
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. Rex Scott Adamson billed Medicare for 984 services in 2024
CMS data shows 984 Medicare services from Dr. Adamson across 3 procedure codes in 2024, for 98 Medicare patients. Medicare paid $73,467 for them. Every service was in an office.
Medicare services, 2024984
Medicare patients98
Paid by Medicare$73,467
Procedure codes3
Dr. Adamson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5582024: 50210%
- Office and hospital visits
- 2023: 5182024: 4827%
Dr. Adamson compared with the California median for psychiatrists, 2024
- Dr. Adamson
- California median
- Medicare services
- 984vs 1198.3 times
- Medicare patients
- 98vs 412.4 times
- Part D claims
- 4,730vs 14432.8 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Adamson'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.
Need commercial claims for Dr. Adamson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Adamson and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rex Scott Adamson treated 98 Medicare patients in 2024, average age 56
CMS counts 98 Medicare patients who saw Dr. Adamson in 2024. The largest group is under 65, with 69 patients. 75% of them have schizophrenia and other psychoses, and 60% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Adamson's median patient age at 46, with 54% women.
Medicare patients, 202498
Average age56
Average risk score1.16
Dr. Adamson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Adamson's Medicare patients by sex, 2024
- Women4142%
- Men5758%
Chronic conditions among Dr. Adamson's Medicare patients, 2024
- Schizophrenia and other psychoses75%
- High blood pressure60%
- High cholesterol59%
- COPD37%
- Tobacco use37%
- Diabetes34%
- Mood disorders21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Adamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rex Scott Adamson wrote 4,931 Medicare Part D claims in 2024
In 2024, Dr. Adamson wrote 4,931 Medicare Part D claims for 114 patients. 83% of them were for generic drugs. CMS names the drug for 4,730 of them, across 61 drugs with 11 or more claims each, at $1,407,233 in total drug cost. In 2023, CMS named 5,333 claims across 74 drugs.
Part D claims, 20244,931
Drugs named by CMS61
Total drug cost$1.4M
Part D patients114
Dr. Adamson's Part D claims by kind of drug, 2024
- Generic4,101 claims83%
- Brand-name830 claims17%
Dr. Adamson'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. Adamson's Part D claims, 2024
- Antipsychotics, patients 65 and over12%569 of 4,931 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: 5,3332024: 4,73011%
Drugs named by CMS: 61 in 2024, 74 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
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Dr. Rex Scott Adamson has 1 publication on record
Dmand AI links 1 paper to Dr. Adamson. Dr. Adamson's most frequent co-author is Franklin C. Wagner, MD.
Papers1
Dr. Adamson's most frequent co-authors
Recent publications by Dr. Adamson
See who Dr. Adamson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Adamson works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Rex Scott Adamson received $1,120 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Adamson from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 61% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $419.
General payments to Dr. Adamson by program year, 2016 to 2025
General payments to Dr. Adamson by kind, 2016 to 2025
$1.1Kin total
- Food and beverage$68561%
- Education$43539%
Companies that paid Dr. Adamson 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. Rex Scott Adamson graduated from UC Davis School of Medicine
Dr. Adamson graduated from UC Davis School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rex Scott Adamson'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) |
| 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) |
| 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. Rex Scott Adamson
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. Rex Scott Adamson's NPI number?
Dr. Rex Scott Adamson's NPI number is 1053416701. It was assigned on September 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rex Scott Adamson?
Dr. Rex Scott Adamson is a psychiatrist in Modesto, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Rex Scott Adamson practice?
Dr. Adamson practices at 1501 Claus Road, Modesto, CA 95355. Dr. Adamson's primary practice is Doctors Behavioral Health Center - Modesto in Modesto, California. Dmand AI also links Dr. Adamson to 1 physician office.
What is Dr. Rex Scott Adamson's office phone number?
The practice phone on file for Dr. Adamson is (209) 557-6300.
What is Dr. Rex Scott Adamson's medical license number?
Dr. Adamson holds California license G85915, one of the licenses on file in 2 states.
Which states has Dr. Rex Scott Adamson been licensed in?
Dmand AI has state licenses on file for Dr. Adamson in California (2000 to 2026) and West Virginia (1991 to 2016).
Does Dr. Rex Scott Adamson accept Medicare?
Yes. CMS data shows Dr. Adamson billed Medicare for 984 services in 2024.
How many Medicare patients does Dr. Rex Scott Adamson see?
CMS counts 98 Medicare patients who saw Dr. Adamson in 2024, with an average age of 56.
What services does Dr. Rex Scott Adamson bill to Medicare?
In 2024, Dr. Adamson's most billed Medicare services were office visit, established patient (99214), psychiatric service (90833) and heart test or procedure (93010).
Where did Dr. Rex Scott Adamson go to medical school?
Dr. Adamson graduated from UC Davis School of Medicine in 1990.
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What drugs does Dr. Rex Scott Adamson prescribe most?
In 2024 Medicare Part D data, Dr. Adamson's most prescribed drugs by claims were Clozapine, Olanzapine and Lithium Carbonate.
Has Dr. Rex Scott Adamson received payments from drug or device companies?
CMS Open Payments shows $1,120 in general payments to Dr. Adamson from 6 companies from 2016 to 2025. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Rex Scott Adamson been practicing?
Dr. Adamson graduated from medical school in 1990, 36 years ago.
Does Dr. Rex Scott Adamson do research?
Dmand AI links 1 publication to Dr. Adamson.
Who does Dr. Rex Scott Adamson publish with?
Dr. Adamson's most frequent co-authors are Franklin C. Wagner, MD (1 shared paper).
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