Mary Elizabeth Massieu, DNP, FNP -C

Family Nurse Practitioner

Mary Elizabeth Massieu is a Family Nurse Practitioner based in Dewey, AZ with over 20 years of clinical experience. Offers virtual telehealth visits.

Telehealth Available
NPI Active per CMS — Q2 2026

Mary Elizabeth Massieu, DNP, FNP -C specializes in nursing, serving patients in Dewey, AZ in group practice. She has been in practice for 20+ years. Among her Medicare patients, common conditions include high cholesterol, hypertension, and kidney disease (per CMS data).

At a glance

  • Uses generic medications more than 67% of reporting doctors in Arizona
  • Virtual visits available — no app or travel required
1 of 769 Nurse Practitioner providers in AZSee all Nurse Practitioner in Dewey20+ years experienceNPI since 2014

Older · 581dNPPES updated 2024-10-19 · verify NPI on CMS · Verify license at Arizona Medical Board

Contact & Location

Practice Location

12075 E State Route 69, Dewey, AZ 86327-4517

Fax: (602) 218-4443
Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Chronic Kidney Disease.

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Hypertension
Higher than avg (+1%)71%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+1%) — a focus area for this doctor

Chronic Kidney Disease
Higher than avg (+18%)48%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↑ More patients than average (+18%) — a focus area for this doctor

Arthritis
Lower than avg (-6%)43%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-6%) — less common here

Anxiety Disorders
Lower than avg (-2%)32%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-2%) — less common here

Mood Disorders
26%

Conditions affecting emotional state, including depression and bipolar disorder

Depression
Lower than avg (-9%)23%

A mood disorder causing persistent sadness and loss of interest in activities

US avg: 31.8%

↓ Fewer patients than average (-9%) — less common here

Tobacco Use Disorder
23%

Nicotine dependence and tobacco-related health complications

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Patient Reviews

No patient reviews yet. If you've seen Mary Elizabeth Massieu, your feedback helps other patients.

Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →

Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Board certified · Oct 18, 2024

    Self-reported via NPPES

  2. 20 years in practice

    Experienced

Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Definition to come...

Taxonomy: 363LF0000X

Practice Footprint

Mailing address

14600 S. Waterbury Street Suite a & B, Mayer, AZ 86333

Differs from practice location

Virtual Nursing Care With Mary Elizabeth Massieu

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Mary Elizabeth Massieu for cholesterol management, blood pressure monitoring, kidney care follow-ups — no travel to Dewey required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Mary Elizabeth Massieu

Dr. Massieu is listed as active in the NPI registry with telehealth listed in Dewey, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (928) 777-9600.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

Is this your profile?

Verify credentials, update practice details, and manage telehealth.

Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

Related Providers

Family Nurse Practitioner in AZ

See all