Margaret Mass, MD
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- NPI Number
- 1083343107
- Provider Type
- Individual Practitioner
- Credential
- MD
- Primary Specialty
- Allopathic & Osteopathic Physicians - Family Medicine Physician
- License Number
- MD70026676
- Practice Address
- 904 7th AVE
- City, State ZIP
- Seattle, WA 98104
- Phone
- (206) 860-4700
- Last Updated
- June 8, 2026
- Source
- Publicly available data
Margaret Mass, MD is a family medicine physician provider located in Seattle, WA. They offer family medicine physician services to patients in the Seattle area.
As a family medicine physician provider in Seattle, this clinician evaluates and treats patients for a range of common conditions seen in Seattle and throughout WA.
The practice is located at 904 7th AVE, Seattle, WA 98104. Patients can call 2068604700 to schedule an appointment or use the directions link above to find the office from anywhere in the area.
Patients typically visit this provider for patients typically see a family medicine provider for annual physicals, vaccinations, sick visits, sports and school physicals, chronic disease management (such as diabetes or high blood pressure), and routine screenings.
If you plan to see this provider, it is a good idea to confirm that the practice accepts your insurance and is in-network before scheduling. Coverage details vary by plan, and our quote tool can help you compare options in WA.
This profile was last verified on June 8, 2026. Provider information is sourced from publicly available data and may not reflect recent changes. Please confirm details directly with the practice before scheduling.
Call for hours and appointments. Hours may vary by provider and location.
A patient’s guide to family medicine physician care in Seattle, WA.
What a Family Medicine Physician provider does
Family medicine providers care for patients of all ages — from infants to seniors. They provide preventive care, treat acute illnesses, manage chronic conditions, and serve as a first point of contact for most health concerns. Many family practitioners also offer pediatric care, women’s health services, and minor in-office procedures.
Common conditions treated
Family medicine providers treat a wide range of conditions including high blood pressure, diabetes, high cholesterol, asthma, allergies, sinus and ear infections, sprains and strains, urinary tract infections, depression, and anxiety. They also provide well-child exams and adult physicals.
Common reasons to schedule a visit
Patients typically see a family medicine provider for annual physicals, vaccinations, sick visits, sports and school physicals, chronic disease management (such as diabetes or high blood pressure), and routine screenings.
What to expect during a visit
A typical family medicine visit includes a review of your health history, vitals, an age-appropriate examination, and time to discuss any concerns. Your provider may order lab work, recommend vaccines, or suggest follow-up appointments.
Insurance coverage considerations
Most health insurance plans cover preventive services at no cost when you see an in-network provider. Use our quote tool to compare plans and confirm this provider is in your network.
How to choose the right family medicine physician provider in Seattle
A good family medicine provider offers continuity of care across every life stage, from childhood immunizations to senior screenings. Consider their office location, after-hours availability, and whether they treat every member of your household.
Looking for in-network coverage that includes this family medicine physician provider? Compare health plans in WA →
Insurance acceptance not listed
The public NPI registry does not include insurance acceptance data. Contact the office directly to ask if they accept your insurance plan. You can also use our quote tool to find health plans in WA.
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Common questions about Margaret Mass, MD in Seattle, WA.
How do I make an appointment with Margaret Mass, MD?
Call Margaret Mass, MD directly at their Seattle office to schedule a visit. You can also use the contact form on this page to send a message and the practice will respond.
Does Margaret Mass, MD accept insurance?
Provider insurance information is not included in the public NPI registry data that powers this directory. Contact the office directly to ask whether they accept your specific insurance plan. You can also use our quote tool to find health plans in WA.
What are the office hours for Margaret Mass, MD in Seattle?
Office hours for Margaret Mass, MD in Seattle are not currently published. Call the practice directly to confirm hours before your visit.
Is parking available at Margaret Mass, MD's Seattle location?
Most provider offices in Seattle offer on-site or nearby street parking. Call Margaret Mass, MD in Seattle ahead of time to confirm parking options and accessibility accommodations.
Does Margaret Mass, MD offer telehealth?
Many family medicine physician providers in WA now offer telehealth visits for follow-ups, medication management, and routine consultations. Call Margaret Mass, MD to ask whether a telehealth visit is appropriate for your needs.
What ages of patients does Margaret Mass, MD see?
Family medicine providers typically see patients from infants through older adults. Call Margaret Mass, MD in Seattle to confirm the age range currently accepted.
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Claim ProfileData is sourced from publicly available records. Public records do not confirm active license status, quality of care, insurance acceptance, or network participation. Please verify details directly with the provider before scheduling. Last updated June 8, 2026.