Mary D. Oestreich

NP·Nurse Practitioner

3927 RUCKER AVE, Everett, WA 98201

Medicare Accepted

Telehealth Available

7+ Years Experience

Contact Mary D. Oestreich

(425) 339-3930 Get Directions

3927 RUCKER AVE, Everett, WA 98201

For Providers

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Specialty

Nurse Practitioner Specialists

Coverage

Medicare + 8 Networks

Telehealth

Available

About Mary D. Oestreich

Background and practice information

Mary D. Oestreich is a nurse practitioner with over 7 years of clinical experience serving patients in the Everett, WA area. She completed her medical training at University Of Washington School Of Medicine and has been in practice since 2019. She currently practices at Optum Care Washington Pllc.

Mary D. Oestreich's clinical practice focuses on treating patients with acid reflux and stomach ulcers.

Mary D. Oestreich is in-network with 8 insurance providers, including Aetna, Cigna, Medicare, and 5 more. Patients are encouraged to verify coverage with her office before scheduling an appointment.

At a Glance

GenderFemale

Experience7+ years

MedicareAccepted

TelehealthAvailable

Education

Medical SchoolUniversity Of Washington School Of Medicine

Graduated2019

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Practice Locations

1 location

Optum Care Washington Pllc

Primary

3927 Rucker Ave

Everett, WA 98201

(425) 339-3930

Affiliations

Hospital and facility affiliations

Optum Care Washington Pllc

Group Practice · EVERETT, WA

Treatment & Experience

Clinical practice and procedure experience for Mary D. Oestreich

Services & Procedures

Mary D. Oestreich's clinical practice encompasses office visits, diagnostic testing.

Office Visits

100 services

Mary D. Oestreich provides patient consultations ranging from routine follow-ups to comprehensive evaluations, with follow-up visit being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 81% below the billed amount.

Diagnostic Testing

50 services

Mary D. Oestreich orders and interprets diagnostic tests to support clinical decision-making, including blood draw and complete blood cell count , automated test. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 58% below the billed amount.

Treatment Approach

Mary D. Oestreich's treatment approach includes prescribing Omeprazole, Pantoprazole Sodium, Lansoprazole for her patients. These medications are commonly used for treating acid reflux and stomach ulcers. This prescribing pattern is consistent with a focused practice in nurse practitioner. Mary D. Oestreich has treated a significant number of Medicare patients, demonstrating an established practice in this area.

Omeprazole— for acid reflux and stomach ulcers

Pantoprazole Sodium— for acid reflux and stomach ulcers

Lansoprazole— for acid reflux and stomach ulcers

Cholestyramine (With Sugar)(Cholestyramine)

Amitriptyline Hcl

Source: CMS Medicare Provider Utilization and Payment Data, 2023.

Insurance Networks

Accepted insurance plans and networks

Mary D. Oestreich accepts 34 plans from 8 insurers, including Cigna, UnitedHealthcare, Premera BC.

Cigna

In-NetworkView all Cigna doctors in Everett, WA →

Healthpartners Qualified Network

Mvp Mohawk Valley Physicians

National OapOAP

National PpoPPO

National Ppo Sar 1PPO

National Ppo Sar IiPPO

Oap Shared Admin RepricingOAP

Pathwell OapOAP

Pathwell PpoPPO

Priority Health Alliance

Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.

Patient Reviews

Reviews and ratings from patients

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This profile appears in 8 insurance networks

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About Nurse Practitioner

Specialty overview and common conditions

A Nurse Practitioner (NP) is an advanced practice registered nurse who provides comprehensive healthcare services including diagnosing illnesses, prescribing medications, ordering and interpreting diagnostic tests, and developing treatment plans. NPs practice in various specialties including primary...

Common conditions treated by nurse practitioner specialists:

Diabetes Management
Hypertension (High Blood Pressure)
Respiratory Infections
Anxiety and Depression

Learn more about nurse practitioner specialists

Frequently Asked Questions

Common questions about Mary D. Oestreich

Does Oestreich accept Medicare?

Yes, Oestreich accepts Medicare assignment. Patients with Medicare coverage can see Oestreich and typically pay less out of pocket when using a provider who accepts Medicare assignment.

What insurance does Oestreich accept?

Oestreich is in-network with 8 insurance providers, including Aetna, Cigna, Medicare, Oxford Health Plans (UHC), Premera BC, and 3 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Oestreich's office before scheduling.

Does Oestreich offer telehealth or virtual appointments?

Yes, Oestreich offers telehealth services, allowing patients to have virtual consultations from the comfort of their home. Contact the office to schedule a telehealth appointment.

What conditions does Oestreich treat?

As a nurse practitioner specialist, Oestreich commonly treats conditions including diabetes management, hypertension (high blood pressure), respiratory infections, anxiety and depression, women's health issues, and other related health concerns. Contact the office to discuss your specific healthcare needs.

What medications does Oestreich commonly prescribe?

Based on Medicare prescribing data, Oestreich commonly prescribes medications including Omeprazole, Pantoprazole Sodium, Lansoprazole. The specific medications prescribed depend on each patient's individual diagnosis and health needs. Patients should discuss treatment options directly with Oestreich during their consultation.

Where did Oestreich go to medical school?

Oestreich completed medical training at University Of Washington School Of Medicine and has been practicing since 2019, bringing over 7 years of clinical experience.

Where is Oestreich's office located?

Oestreich practices at 3927 RUCKER AVE, Everett, WA 98201 at OPTUM CARE WASHINGTON PLLC. You can reach the office by calling (425) 339-3930.

How do I make an appointment with Oestreich?

To schedule an appointment with Oestreich, call the office at (425) 339-3930. New patients should have their insurance information and medical records ready when calling.

Data source: CMS National Provider Registry · Last updated: May 2026