Summary

Dr. Joseph Mattern treats bipolar disorder, bipolar disorder in children and teens, and chronic bronchitis, and performs pelvic ultrasound as part of his family medicine practice. He has practiced family medicine for 26 years and is affiliated with Jefferson Healthcare Medical Center.

Dr. Mattern earned his medical degree from Drexel University College of Medicine and completed his residency at Wisconsin School of Medicine and Public Health. He sees patients in Port Townsend, Washington, and speaks English and Spanish. Patients on Vitals rate Dr. Mattern 5 out of 5.

Overview based on verified provider data

Quick Facts

  • 5
  • 26 years of experience
  • speaks English, Spanish
  • Wisconsin School Of Medicine And Public Health
  • 4 written reviews
  • 1 specialty
  • 6 areas of expertise
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Joseph John Mattern has 2 locations

Sheridan Building Primary Care

915 Sheridan StPort Townsend, WA 98368
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Jefferson Healthcare

834 Sheridan StPort Townsend, WA 98368

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Dr. Joseph John Mattern III, MD
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Dr. Joseph John Mattern III, MDDr. Sathish Karmegam, MDNicole Baldwin, APRN, FNP-BCJohn A. Meyer, MSN, FNP-C
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
5 
0 
4.2 
5 
26 Years of Experience 24 Years of Experience 8 Years of Experience 6 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English, Spanish, Tamil, Arabic, Malayalam Speaks English Speaks English
Port Townsend , WADenton , TXOrlando , FLHouston , TX
Med School: Drexel University College Of Medicine Med School: Stanley Medical College
Current Profile
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Insurance Plans Accepted by Dr. Joseph John Mattern

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Joseph John Mattern has the following specialty

Specialty Expertise

Dr. Joseph John Mattern has the following 6 areas of expertise

  • Check-up
  • Contraception
  • Family Planning
  • Immunization
  • Influenza
  • Weight Loss

Certifications, License, & Education

26 Years Experience

Dr. Joseph John Mattern holds an expired medical license in the state of Washington.

Medical License

Medical Doctor with an expired medical license in the state of Washington that expired in 2025.

Education & Training

Residency

Completed their residency at Wisconsin School Of Medicine And Public Health.

Medical School

Graduated from Drexel University College Of Medicine in 2000.

NPI Number

Dr. Mattern's NPI number is 1023060423.

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Frequently Asked Questions

Where is Dr. Joseph Mattern's office located?
Dr. Joseph Mattern's office is located at 915 Sheridan St, Port Townsend, WA, 98368.
How can I make an appointment with Dr. Joseph Mattern?
You can find contact information for Dr. Joseph Mattern here on Vitals.
Is Dr. Joseph Mattern accepting new patients?
Dr. Joseph Mattern has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Joseph Mattern speak?
Dr. Joseph Mattern speaks English and Spanish.
Which hospitals is Dr. Joseph Mattern affiliated with?
Dr. Joseph Mattern is affiliated with Jefferson Healthcare Medical Center.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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