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Dr. Maria Joy Nelson, MD
NPI1346484854
- Medicare services, 2024
- 532
- Medicare patients, 2024
- 313
- Part D claims, 2024
- 299
- Publications
- 2
- MIPS score, 2024
- 97
- Practice address
- 24800 Se Stark Street, Gresham, OR 97030
- Practice phone
- Call (503) 674-1122
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nelson's professional email, personal email and mobile number
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Dr. Maria Joy Nelson is an emergency medicine physician in Gresham, Oregon
Dr. Nelson practices at Legacy Mount Hood Medical Center in Gresham, Oregon, part of Legacy Health.
Dr. Nelson's NPI, 1346484854, was assigned on April 28, 2009. Dr. Nelson holds Oregon license MD154719.
NPI and contact details
- NPI
- 1346484854NPI Registry (opens in a new tab)
- NPI enumeration date
- April 28, 2009
- NPI status
- Active
- Practice phone
- (503) 674-1122
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Maria Joy Nelson practices at Legacy Mount Hood Medical Center in Gresham, Oregon
Dr. Nelson's primary practice is Legacy Mount Hood Medical Center, at 24800 Se Stark Street, Gresham, OR 97030 in Multnomah County. The practice phone is (503) 674-1122.
- Legacy Mount Hood Medical Center24800 Se Stark Street, Gresham, OR 97030 · Multnomah CountyPhone(503) 674-1122
Source: Dmand AI Affiliation Data
Dr. Maria Joy Nelson is affiliated with 2 sites of care and 1 medical group
Dr. Nelson's primary practice is Legacy Mount Hood Medical Center in Gresham, Oregon, part of Legacy Health. Dr. Nelson is also affiliated with OHSU Hospital. The medical group on file is Northwest Acute Care Specialists.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Maria Joy Nelson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nelson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Legacy Mount Hood 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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Dr. Maria Joy Nelson is one of 962 emergency medicine physicians in Oregon
Emergency medicine is Dr. Nelson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Nelson is licensed in Oregon.
Specialties and state licenses
- Emergency medicine, OregonPrimary
Emergency medicine physicians near Dr. Nelson
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
962emergency medicine physicians in Oregon16emergency medicine physicians in Gresham16emergency medicine physicians at Legacy Mount Hood Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Maria Joy Nelson billed Medicare for 532 services in 2024
CMS data shows 532 Medicare services from Dr. Nelson across 6 procedure codes in 2024, for 313 Medicare patients. Medicare paid $40,636 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024532
Medicare patients313
Paid by Medicare$40,636
Procedure codes6
Dr. Nelson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3052024: 3319%
- Tests and treatments
- 2023: 1242024: 15626%
- Imaging
- 2023: 322024: 4541%
Dr. Nelson compared with the Oregon median for emergency medicine physicians, 2024
- Dr. Nelson
- Oregon median
- Medicare services
- 532vs 1773.0 times
- Medicare patients
- 313vs 18173% above
- Part D claims
- 144vs 492.9 times
Medians across 1,000 emergency medicine physicians in Oregon with Dmand AI profiles that report each measure.
Dr. Nelson'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. Maria Joy Nelson treated 313 Medicare patients in 2024, average age 71
CMS counts 313 Medicare patients who saw Dr. Nelson in 2024. The largest group is 65 to 74, with 107 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.65, 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. Nelson's median patient age at 44, with 57% women.
Medicare patients, 2024313
Average age71
Average risk score1.65
Also on Medicaid37%
Dr. Nelson's Medicare patients by age, 2024
Dr. Nelson's Medicare patients by sex, 2024
- Women17957%
- Men13443%
Chronic conditions among Dr. Nelson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Arthritis41%
- Mood disorders39%
- Depression36%
- Anxiety34%
- Diabetes33%
- Heart failure30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nelson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Maria Joy Nelson wrote 299 Medicare Part D claims in 2024
In 2024, Dr. Nelson wrote 299 Medicare Part D claims for 229 patients. 91% of them were for generic drugs. CMS names the drug for 144 of them, across 9 drugs with 11 or more claims each, at $817 in total drug cost. In 2023, CMS named 93 claims across 4 drugs.
Part D claims, 2024299
Drugs named by CMS9
Total drug cost$817
Part D patients229
Dr. Nelson's Part D claims by kind of drug, 2024
- Generic273 claims91%
- Brand-name and other26 claims9%
Dr. Nelson'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. Nelson's Part D claims, 2024
- Opioids15%44 of 299 claims
- Antibiotics30%90 of 299 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: 932024: 14455%
Drugs named by CMS: 9 in 2024, 4 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
Dr. Maria Joy Nelson scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Nelson for performance year 2024, reported as part of a group.
Dr. Nelson's MIPS scores, performance year 2024
- 97of 100Final score
- 84.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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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Dr. Maria Joy Nelson has 2 publications on record
Dmand AI links 2 papers to Dr. Nelson in 2013. Dr. Nelson's most frequent co-authors are Craig D. Newgard, MD, MPH, Nicole Marie Deiorio, MD and Jerris Robert Hedges, MD, MS, MMM.
Papers2
Dr. Nelson's most frequent co-authors
- Craig D. Newgard, MD, MPH2 shared papers
- Nicole Marie Deiorio, MD1 shared paper
- Jerris Robert Hedges, MD, MS, MMM1 shared paper
Recent publications by Dr. Nelson
AlgorithmsDecision MakingEmergency Medical Services
See who Dr. Nelson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nelson works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Maria Joy Nelson received $103 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Nelson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $103.
Companies that paid Dr. Nelson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Maria Joy Nelson'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) |
| 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) |
| 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. Maria Joy Nelson
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. Maria Joy Nelson's NPI number?
Dr. Maria Joy Nelson's NPI number is 1346484854. It was assigned on April 28, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Maria Joy Nelson?
Dr. Maria Joy Nelson is an emergency medicine physician in Gresham, Oregon. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Maria Joy Nelson practice?
Dr. Nelson practices at 24800 Se Stark Street, Gresham, OR 97030. Dr. Nelson's primary practice is Legacy Mount Hood Medical Center in Gresham, Oregon, part of Legacy Health.
What is Dr. Maria Joy Nelson's office phone number?
The practice phone on file for Dr. Nelson is (503) 674-1122.
What is Dr. Maria Joy Nelson's medical license number?
Dr. Nelson holds Oregon license MD154719.
Which hospitals is Dr. Maria Joy Nelson affiliated with?
Dr. Nelson practices at Legacy Mount Hood Medical Center in Gresham, Oregon. Dr. Nelson is also affiliated with OHSU Hospital.
What medical group is Dr. Maria Joy Nelson part of?
Dr. Nelson is linked to Northwest Acute Care Specialists.
Does Dr. Maria Joy Nelson accept Medicare?
Yes. CMS data shows Dr. Nelson billed Medicare for 532 services in 2024.
What is Dr. Maria Joy Nelson's MIPS score?
Dr. Nelson's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dr. Maria Joy Nelson see?
CMS counts 313 Medicare patients who saw Dr. Nelson in 2024, with an average age of 71.
Show 6 more questionsShow fewer questions
What services does Dr. Maria Joy Nelson bill to Medicare?
In 2024, Dr. Nelson's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
What drugs does Dr. Maria Joy Nelson prescribe most?
In 2024 Medicare Part D data, Dr. Nelson's most prescribed drugs by claims were Cephalexin, Prednisone and Oxycodone HCl.
Has Dr. Maria Joy Nelson received payments from drug or device companies?
CMS Open Payments shows $103 in general payments to Dr. Nelson from 1 company from 2025 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has Dr. Maria Joy Nelson been practicing?
Dr. Nelson's NPI was assigned in 2009.
Does Dr. Maria Joy Nelson do research?
Dmand AI links 2 publications to Dr. Nelson.
Who does Dr. Maria Joy Nelson publish with?
Dr. Nelson's most frequent co-authors are Craig D. Newgard, MD, MPH (2 shared papers), Nicole Marie Deiorio, MD (1 shared paper) and Jerris Robert Hedges, MD, MS, MMM (1 shared paper).
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