Dr. Mary E. River, MD
- Medicare services, 2024
- 324
- Medicare patients, 2024
- 183
- Part D claims, 2024
- 2,540
- Hospital affiliations
- 2
- Industry payments
- $3,220
- Practice address
- 4300 E Flamingo Ave, Nampa, ID 83687
- Practice phone
- Call (208) 463-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. River's professional email, personal email and mobile number
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Dr. Mary E. River is a neurologist in Nampa, Idaho
Dr. River practices at Saint Alphonsus Medical Center - Nampa in Nampa, Idaho, part of Trinity Health.
Dr. River's NPI, 1205882743, was assigned on May 26, 2006. Dr. River graduated from Northwestern University Feinberg Medical School in 1984. Dr. River holds Idaho license M-8111.
- NPI
- 1205882743NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264517069
- NPI enumeration date
- May 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (208) 463-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary E. River practices at Saint Alphonsus Medical Center - Nampa in Nampa, Idaho
Dr. River's primary practice is Saint Alphonsus Medical Center - Nampa, at 4300 E Flamingo Ave, Nampa, ID 83687 in Canyon County. The practice phone is (208) 463-5000.
- Saint Alphonsus Medical Center - Nampa4300 E Flamingo Ave, Nampa, ID 83687 · Canyon CountyPhone(208) 463-5000
Source: Dmand AI Affiliation Data
Dr. Mary E. River is affiliated with 3 sites of care and 1 medical group
Dr. River's primary practice is Saint Alphonsus Medical Center - Nampa in Nampa, Idaho, part of Trinity Health. Dr. River is also affiliated with Saint Alphonsus Regional Medical Center. The medical group on file is Saint Alphonsus Regional Medical Center. Dmand AI also links Dr. River to 1 more 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. Mary E. River's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. River practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Alphonsus Medical Center - Nampa | Available with a free account |
| +2 more affiliated sites | 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 Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mary E. River is one of 65 neurologists in Idaho
Neurology is Dr. River's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. River is licensed in Idaho.
Specialties and state licenses
- Neurology, IdahoPrimary
Neurologists near Dr. River
Counts of neurologists 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. Mary E. River billed Medicare for 324 services in 2024
CMS data shows 324 Medicare services from Dr. River across 6 procedure codes in 2024, for 183 Medicare patients. Medicare paid $23,320 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. River's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3332024: 22233%
- Other services
- 2023: 2152024: 7067%
- Surgery
- 2023: 02024: 32
Dr. River compared with the Idaho median for neurologists, 2024
- Dr. River
- Idaho median
- Medicare services
- 324vs 40821% below
- Medicare patients
- 183vs 2019% below
- Part D claims
- 2,320vs 6623.5 times
Medians across 71 neurologists in Idaho with Dmand AI profiles that report each measure.
Dr. River'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. River and other neurologists in Idaho.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary E. River treated 183 Medicare patients in 2024, average age 72
CMS counts 183 Medicare patients who saw Dr. River in 2024. The largest group is 65 to 74, with 78 patients. 69% of them have high cholesterol, and 66% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. River's median patient age at 74, with 60% women.
Dr. River's Medicare patients by age, 2024
Dr. River's Medicare patients by sex, 2024
- Women11864%
- Men6536%
Chronic conditions among Dr. River's Medicare patients, 2024
- High cholesterol69%
- High blood pressure66%
- Arthritis51%
- Mood disorders36%
- Anxiety35%
- Depression32%
- Alzheimer's and dementia27%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. River's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary E. River wrote 2,540 Medicare Part D claims in 2024
In 2024, Dr. River wrote 2,540 Medicare Part D claims for 381 patients. 89% of them were for generic drugs. CMS names the drug for 2,320 of them, across 51 drugs with 11 or more claims each, at $663,808 in total drug cost. In 2023, CMS named 2,847 claims across 56 drugs.
Dr. River's Part D claims by kind of drug, 2024
- Generic2,262 claims89%
- Brand-name and other278 claims11%
Dr. River'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. River's Part D claims, 2024
- Opioids1%15 of 2,540 claims
- Antipsychotics, patients 65 and over3%73 of 2,540 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: 2,8472024: 2,32019%
Drugs named by CMS: 51 in 2024, 56 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. Mary E. River takes part in Medicare
Dr. River 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. Mary E. River received $3,220 in industry payments from 2016 to 2025
CMS Open Payments shows 98 general payments to Dr. River from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 79% of the total. Biogen, Inc. paid the most, $508.
General payments to Dr. River by program year, 2016 to 2025
General payments to Dr. River by kind, 2016 to 2025
- Food and beverage$2,53679%
- Consulting fees$45014%
- Travel and lodging$1836%
- Speaker and faculty fees$512%
Companies that paid Dr. River 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. Mary E. River graduated from Northwestern University Feinberg Medical School
Dr. River graduated from Northwestern University Feinberg Medical School in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary E. River'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. Mary E. River
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. Mary E. River's NPI number?
Dr. Mary E. River's NPI number is 1205882743. It was assigned on May 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary E. River?
Dr. Mary E. River is a neurologist in Nampa, Idaho. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Mary E. River practice?
Dr. River practices at 4300 E Flamingo Ave, Nampa, ID 83687. Dr. River's primary practice is Saint Alphonsus Medical Center - Nampa in Nampa, Idaho, part of Trinity Health. Dmand AI also links Dr. River to 1 physician office.
What is Dr. Mary E. River's office phone number?
The practice phone on file for Dr. River is (208) 463-5000.
What is Dr. Mary E. River's medical license number?
Dr. River holds Idaho license M-8111.
Which hospitals is Dr. Mary E. River affiliated with?
Dr. River practices at Saint Alphonsus Medical Center - Nampa in Nampa, Idaho. Dr. River is also affiliated with Saint Alphonsus Regional Medical Center.
What medical group is Dr. Mary E. River part of?
Dr. River is linked to Saint Alphonsus Regional Medical Center.
Does Dr. Mary E. River accept Medicare?
Yes. CMS data shows Dr. River billed Medicare for 324 services in 2024, and Dr. River accepts Medicare assignment.
How many Medicare patients does Dr. Mary E. River see?
CMS counts 183 Medicare patients who saw Dr. River in 2024, with an average age of 72.
What services does Dr. Mary E. River bill to Medicare?
In 2024, Dr. River's most billed Medicare services were office visit, established patient (99215), medicare service (G2211) and office visit, established patient (99214).
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Where did Dr. Mary E. River go to medical school?
Dr. River graduated from Northwestern University Feinberg Medical School in 1984.
What drugs does Dr. Mary E. River prescribe most?
In 2024 Medicare Part D data, Dr. River's most prescribed drugs by claims were Gabapentin, Memantine HCl and Topiramate.
Has Dr. Mary E. River received payments from drug or device companies?
CMS Open Payments shows $3,220 in general payments to Dr. River from 26 companies from 2016 to 2025. The largest total came from Biogen, Inc.
How long has Dr. Mary E. River been practicing?
Dr. River graduated from medical school in 1984, 42 years ago.
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