James Nicholas Demas, ARNP, DNP
- Medicare services, 2024
- 158
- Medicare patients, 2024
- 112
- Part D claims, 2024
- 230
- MIPS score, 2024
- 87
- Industry payments
- $29
- Practice address
- 150 Muir Rd, Martinez, CA 94553
- Practice phone
- Call (702) 341-3020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Martinez VA Medical Center
VA Clinic / Health Facility · Martinez, California
Find James Demas' professional email, personal email and mobile number
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James Nicholas Demas is a nurse practitioner in Martinez, California
James Demas practices at Martinez VA Medical Center in Martinez, California.
James Demas' NPI, 1710612858, was assigned on July 21, 2022. James Demas holds Washington license AP61336321.
- NPI
- 1710612858NPI Registry (opens in a new tab)
- NPI enumeration date
- July 21, 2022
- NPI status
- Active
- Practice phone
- (702) 341-3020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
James Nicholas Demas practices at Martinez VA Medical Center in Martinez, California
James Demas' primary practice is Martinez VA Medical Center, at 150 Muir Rd, Martinez, CA 94553. The practice phone is (702) 341-3020.
- Martinez VA Medical Center150 Muir Rd, Martinez, CA 94553Phone(702) 341-3020
Source: Dmand AI Affiliation Data
James Nicholas Demas is affiliated with 1 site of care
James Demas' primary practice is Martinez VA Medical Center in Martinez, California. James Demas' employer is on file too: a government & correctional health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at James Nicholas Demas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Demas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martinez VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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James Nicholas Demas is one of 5,983 nurse practitioners in California
Nurse practitioner is James Demas' primary specialty in the NPI Registry, under taxonomy code 363L00000X. James Demas is licensed in Washington.
Specialties and state licenses
- Nurse practitioner, WashingtonPrimary
Nurse practitioners near James Demas
Counts of nurse practitioners 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
James Nicholas Demas billed Medicare for 158 services in 2024
CMS data shows 158 Medicare services from James Demas across 3 procedure codes in 2024, for 112 Medicare patients. Medicare paid $9,307 for them. Every service was in a facility, such as a hospital, rather than an office.
James Demas' Medicare services by type, 2024
- Office and hospital visits143
- Tests and treatments15
James Demas compared with the California median for nurse practitioners, 2024
- James Demas
- California median
- Medicare services
- 158vs 27943% below
- Medicare patients
- 112vs 9222% above
- Part D claims
- 166vs 36655% below
Medians across 3,047 nurse practitioners in California with Dmand AI profiles that report each measure.
James Demas' 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
James Nicholas Demas treated 112 Medicare patients in 2024, average age 79
CMS counts 112 Medicare patients who saw James Demas in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have heart failure, and 75% have high blood pressure. 18% are also on Medicaid. Their average risk score is 2.15, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts James Demas' median patient age at 30, with 50% women.
James Demas' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
James Demas' Medicare patients by sex, 2024
- Women4439%
- Men6861%
Chronic conditions among James Demas' Medicare patients, 2024
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Atrial fibrillation62%
- Arthritis58%
- Chronic kidney disease52%
- Diabetes41%
Share of Medicare patients with each condition. A patient can have several.
James Demas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 30
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
James Nicholas Demas wrote 230 Medicare Part D claims in 2024
In 2024, James Demas wrote 230 Medicare Part D claims for 39 patients. 75% of them were for generic drugs. CMS names the drug for 166 of them, across 9 drugs with 11 or more claims each, at $28,867 in total drug cost.
James Demas' Part D claims by kind of drug, 2024
- Generic173 claims75%
- Brand-name57 claims25%
James Demas' 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.
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
James Nicholas Demas scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for James Demas for performance year 2024, reported as part of a group.
James Demas' MIPS scores, performance year 2024
- 87of 100Final score
- 80.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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James Nicholas Demas received $29 in industry payments in 2024
CMS Open Payments shows 1 general payment to James Demas from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $29.
Companies that paid James Demas the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for James Nicholas Demas'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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 James Nicholas Demas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James Nicholas Demas' NPI number?
James Nicholas Demas' NPI number is 1710612858. It was assigned on July 21, 2022, and it is active in the NPI Registry.
What does James Nicholas Demas specialize in?
James Nicholas Demas is a nurse practitioner in Martinez, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does James Nicholas Demas practice?
James Demas practices at 150 Muir Rd, Martinez, CA 94553. James Demas' primary practice is Martinez VA Medical Center in Martinez, California.
What is James Nicholas Demas' office phone number?
The practice phone on file for James Demas is (702) 341-3020.
What is James Nicholas Demas' medical license number?
James Demas holds Washington license AP61336321.
Does James Nicholas Demas accept Medicare?
Yes. CMS data shows James Demas billed Medicare for 158 services in 2024.
What is James Nicholas Demas' MIPS score?
James Demas' MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does James Nicholas Demas see?
CMS counts 112 Medicare patients who saw James Demas in 2024, with an average age of 79.
What services does James Nicholas Demas bill to Medicare?
In 2024, James Demas' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and heart test or procedure (93016).
What drugs does James Nicholas Demas prescribe most?
In 2024 Medicare Part D data, James Demas' most prescribed drugs by claims were Clopidogrel, Jardiance and Furosemide.
Has James Nicholas Demas received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to James Demas from 1 company from 2024 to 2024. The largest total came from Edwards Lifesciences Corporation.
How long has James Nicholas Demas been practicing?
James Demas graduated from medical school in 2022, 4 years ago.
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