AbsorptionAnalgesics, OpioidBiotransformation
Dr. Jay R. Thomas, MD
NPI1013092980
- Medicare services, 2020
- 36
- Part D claims, 2024
- 314
- Publications
- 6
- Clinical trials
- 4
- Industry payments
- $639
- Practice address
- 2635 Honolulu Ave, Montrose, CA 91020
- Practice phone
- Call (956) 362-3065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
DHR Health
Montrose, California
Find Dr. Thomas' 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. Jay R. Thomas is an internist in Montrose, California
Dr. Thomas practices at DHR Health in Montrose, California.
Dr. Thomas' NPI, 1013092980, was assigned on October 26, 2006. Dr. Thomas graduated from UCSF School of Medicine in 1994. Dr. Thomas holds California license A55197.
NPI and contact details
- NPI
- 1013092980NPI Registry (opens in a new tab)
- NPI enumeration date
- October 26, 2006
- NPI status
- Active
- Practice phone
- (956) 362-3065
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Jay R. Thomas practices at DHR Health in Montrose, California
Dr. Thomas' primary practice is DHR Health, at 2635 Honolulu Ave, Montrose, CA 91020 in Los Angeles County. The practice phone is (956) 362-3065.
- DHR Health2635 Honolulu Ave, Montrose, CA 91020 · Los Angeles CountyPhone(956) 362-3065
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jay R. Thomas is affiliated with 2 sites of care and 2 medical groups
Dr. Thomas' primary practice is DHR Health in Montrose, California. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Thomas to 1 more group practice or clinic and 1 medical group, each named with a free account.
DHR HealthPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jay R. Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DHR Health | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jay R. Thomas is one of 16,751 internists in California
Internal medicine is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Thomas is board certified in hospice and palliative medicine by the American Board of Internal Medicine. Dr. Thomas is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Thomas
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California
2internists in Montrose
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jay R. Thomas billed Medicare for 36 services in 2020
CMS data shows 36 Medicare services from Dr. Thomas across 2 procedure codes in 2020. Medicare paid $451 for them. Every service was in an office.
Medicare services, 202036
Paid by Medicare$451
Procedure codes2
Dr. Thomas' Medicare services by type, 2020
- Lab and pathology18
- Office and hospital visits18
Dr. Thomas compared with the California median for internists, 2020
- Dr. Thomas
- California median
- Medicare services
- 36vs 36190% below
- Part D claims
- 106vs 42175% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Thomas' most billed Medicare procedure codes, 2020
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. Thomas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thomas and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jay R. Thomas' patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 81, with 56% women.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. Jay R. Thomas wrote 314 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 314 Medicare Part D claims for 60 patients. 78% of them were for generic drugs. CMS names the drug for 106 of them, across 6 drugs with 11 or more claims each, at $902 in total drug cost. In 2023, CMS named 288 claims across 16 drugs.
Part D claims, 2024314
Drugs named by CMS6
Total drug cost$902
Part D patients60
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic244 claims78%
- Brand-name and other70 claims22%
Dr. Thomas' 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: 2882024: 10663%
Drugs named by CMS: 6 in 2024, 16 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. Jay R. Thomas has 6 publications on record
Dmand AI links 6 papers to Dr. Thomas in 2009. 2009 was the busiest year, with 2. The most frequent topics are Analgesics, Opioid, Hyaluronoglucosaminidase and Recombinant Proteins. Dr. Thomas has published most often in J Pain Symptom Manage. Dr. Thomas' most frequent co-authors are Charles F. Von Gunten, MD, PhD and Mark S. Wallace, MD.
Papers6
Topics Dr. Thomas writes about most
- Analgesics, Opioid
- Hyaluronoglucosaminidase
- Recombinant Proteins
- Cross-Over Studies
- Double-Blind Method
- Injections, Subcutaneous
- Morphine
- Palliative Care
Dr. Thomas' most frequent co-authors
Recent publications by Dr. Thomas
J Pain Symptom Manage
Analgesics, OpioidCross-Over StudiesDouble-Blind Method
Oncology (Williston Park)
Anti-Anxiety AgentsCognitive Behavioral TherapyDyspnea
J Palliat Med
Analgesics, OpioidConstipationGastrointestinal Diseases
J Palliat Care
JewsJudaismLung Neoplasms
See who Dr. Thomas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thomas works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jay R. Thomas has worked on 4 clinical trials
Dmand AI links Dr. Thomas to 4 clinical trials. Conditions studied include Pain, Neurologic Manifestations and Coronary Artery Disease.
Clinical trials with Dr. Thomas by phase
- NonePhase 1: no trials
- 1Phase 2: 1 trial
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Conditions in Dr. Thomas' trials
- Pain
- Neurologic Manifestations
- Coronary Artery Disease
- Coronary Disease
Investigators on the most trials with Dr. Thomas
Recent clinical trials with Dr. Thomas
Coronary Artery DiseaseCoronary Disease
PainNeurologic ManifestationsLidocaine
INFUSE Morphine Study (opens in a new tab)
CompletedPhase 3
PainNeurologic ManifestationsHylenex
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Jay R. Thomas received $639 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Thomas from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $175.
General payments to Dr. Thomas by program year, 2016 to 2025
Companies that paid Dr. Thomas 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. Jay R. Thomas graduated from UCSF School of Medicine
Dr. Thomas graduated from UCSF School of Medicine in 1994.
- Medical school
- Board certified in hospice and palliative medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Jay R. Thomas accepts plans from 2 insurance carriers
Dr. Thomas is in network with 2 carriers, including LA Care and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- LA Care
- Molina
Plan types Dr. Thomas accepts, by number of carriers
- Medicare2
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jay R. Thomas'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| 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. Jay R. Thomas
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. Jay R. Thomas' NPI number?
Dr. Jay R. Thomas' NPI number is 1013092980. It was assigned on October 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jay R. Thomas?
Dr. Jay R. Thomas is an internist in Montrose, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jay R. Thomas practice?
Dr. Thomas practices at 2635 Honolulu Ave, Montrose, CA 91020. Dr. Thomas' primary practice is DHR Health in Montrose, California. Dmand AI also links Dr. Thomas to 1 group practice or clinic and 1 medical group.
What is Dr. Jay R. Thomas' office phone number?
The practice phone on file for Dr. Thomas is (956) 362-3065.
What is Dr. Jay R. Thomas' medical license number?
Dr. Thomas holds California license A55197.
What medical group is Dr. Jay R. Thomas part of?
Dr. Thomas is linked to Optum - Downtown Los Angeles. Dmand AI links Dr. Thomas to 1 more medical group.
Does Dr. Jay R. Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 36 services in 2020.
Is Dr. Jay R. Thomas board certified?
Yes. Dr. Thomas is board certified in hospice and palliative medicine by the American Board of Internal Medicine.
What services does Dr. Jay R. Thomas bill to Medicare?
In 2020, Dr. Thomas' most billed Medicare services were lab and pathology test (85610) and office visit, established patient (99211).
Where did Dr. Jay R. Thomas go to medical school?
Dr. Thomas graduated from UCSF School of Medicine in 1994.
Show 6 more questionsShow fewer questions
What drugs does Dr. Jay R. Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Metformin HCl.
Has Dr. Jay R. Thomas received payments from drug or device companies?
CMS Open Payments shows $639 in general payments to Dr. Thomas from 9 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Jay R. Thomas been practicing?
Dr. Thomas graduated from medical school in 1994, 32 years ago.
Does Dr. Jay R. Thomas do research?
Dmand AI links 6 publications to Dr. Thomas. Dr. Thomas has worked on 4 clinical trials.
Who does Dr. Jay R. Thomas publish with?
Dr. Thomas' most frequent co-authors are Charles F. Von Gunten, MD, PhD (2 shared papers) and Mark S. Wallace, MD (1 shared paper).
What insurance does Dr. Jay R. Thomas accept?
Dr. Thomas is in network with 2 carriers, including LA Care and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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