National Provider Identifier Database

MARSDEN S BLOIS IV, MD – NPI #1215938683
Cardiovascular Disease

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.


Contact Information

MARSDEN S BLOIS IV, MD
4743 ARAPAHOE AVE
STE 201
BOULDER, CO80303-1113
Phone: 303-442-2395
Fax: 303-442-1073
Website:
Specialty Taxonomy Code
* Cardiovascular Disease 207RC0000X
Advanced Heart Failure & Transplant Cardiology 207RA0001X

* Indicates primary specialty

NPI Profile & details for MARSDEN S BLOIS IV

NPI Number 1215938683
Credentials MD
Entity Individual
Enumeration date 08/09/2005
Last updated 02/06/2026 - About 4 months ago
Sole proprietor1 No
Identifiers
  • CO License #: DR.0034464
  • TX License #: J7308
Hospital affiliation n/a

1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

Reviews for MARSDEN S BLOIS IV, MD

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