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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Allan Mattern:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Allan Mattern is Excellent. Dr. Mattern has been reviewed by 1 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Allan Mattern, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 5 areas:
  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Mattern graduated from Yale University, New Haven.


Dr. Mattern has 2 hospital affiliations:

  • Wyoming Med Ctr, Casper, Wy 
  • Veterans Affairs Medical Center - Sheridan 

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Additional Information
Dr. Allan Lee Mattern MD is a male Internist, has 50 years of experience and practices in Internal Medicine, Cardiovascular Disease, Cardiology, and Interventional Cardiology.
Where does Dr. Allan L. Mattern practice?
Dr. Allan Mattern has 1 office location.
Dr. Allan Mattern practices Internal Medicine, Cardiovascular Disease, Cardiology, and Interventional Cardiology near Casper, WY.
See Casper Internists and Casper Cardiologists.