DR. MARY E RIVER MD
NPI 1205882743
Psychiatry & Neurology - Neurology in Nampa, ID

Active since May 26, 2006PECOS EnrolledAccepts Medicare Assignment
4300 E FLAMINGO AVE, NAMPA, ID 83687(208) 205-1000 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Dr. Mary E River Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARY E RIVER MD (NPI 1205882743) is an individual neurology provider in Nampa, Idaho, licensed in Idaho (M-8111) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Saint Alphonsus Regional Medical Center, and is a graduate of Northwestern University Feinberg Medical School (1984).

NPPES Registry Identity

NPI1205882743
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameDR. MARY E RIVERCredential: MD
Location Address4300 E FLAMINGO AVENampa, ID 83687-3138
Mailing AddressPo Box 190930Boise, ID 83719-0930 · (208) 302-9342 · Fax (208) 367-5180
Sole ProprietorYes
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1984
Enumeration DateMay 26, 2006
Last NPPES UpdateJuly 14, 2025
NPPES CertifiedJuly 14, 2025
✔ NPI 1205882743 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in ID · M-8111✔ Licensed in ID · M8111
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
4300 E FLAMINGO AVE, Nampa, ID 83687

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary E River Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264517069
PECOS Enrollment IDI20080304000307, I20260506001308
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
165 services119 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
45 services43 patients
Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face 64615
This procedure involves injecting a chemical into specific facial and neck muscles, causing temporary paralysis. This helps reduce muscle activity and can alleviate certain medical conditions. Both sides of the face are treated for a balanced result.
32 services12 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
22 services19 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Alphonsus Regional Medical Center

Acute Care Hospitals · Boise, ID
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number130007
Location1055 North Curtis RoadBoise, ID 83706 · Ada County
Emergency services Birthing friendly

Saint Alphonsus Medical Center - Nampa

Acute Care Hospitals · Nampa, ID
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number130013
Location4300 E Flamingo AveNampa, ID 83687 · Canyon County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 83687 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$121.27 typical visit price
range $52.44 – $160.17
Typical copayment $30.31 (range $13.11 – $40.04)
Most-billed visit code 99204
Established Patient
$93.26 typical visit price
range $16.68 – $130.93
Typical copayment $23.31 (range $4.17 – $32.73)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physical Therapist
4300 E FLAMINGO AVE
NAMPA, ID 83687
General Acute Care Hospital
4300 E FLAMINGO AVE
NAMPA, ID 83687
Social Worker
4300 E FLAMINGO AVE
NAMPA, ID 83687
Social Worker (Clinical)
4300 E FLAMINGO AVE
NAMPA, ID 83687
Nurse Practitioner
4300 E FLAMINGO AVE
NAMPA, ID 83687
Physician Assistant
4300 E FLAMINGO AVE
NAMPA, ID 83687
Dietitian, Registered
4300 E FLAMINGO AVE
NAMPA, ID 83687
Pharmacy Technician
4300 E FLAMINGO AVE
NAMPA, ID 83687

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary River's NPI number?

The NPI number for Mary River is 1205882743. It was assigned to this individual provider in the NPPES registry on May 26, 2006.

Where is Mary River located?

Mary River practices at 4300 E Flamingo Ave, Nampa, ID 83687. The listed phone number is (208) 205-1000.

What is Mary River's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Mary River enrolled in Medicare?

Yes. Mary River is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mary River accept?

Health plans from Moda Health Plan, Inc. list Mary River as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mary River affiliated with any hospitals?

According to CMS data, Mary River is affiliated with Saint Alphonsus Regional Medical Center and Saint Alphonsus Medical Center - Nampa.

When was this NPI record last updated?

The NPPES record for Mary River was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.