National Provider Identifier Database

MARK W DREYER, MD – NPI #1396714861
Gastroenterology

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.


Contact Information

MARK W DREYER, MD
1111 DELAFIELD ST
SUITE 212
WAUKESHA, WI53188-3417
Phone: 262-544-8622
Fax: 262-544-8630
Website:
Specialty Taxonomy Code
* Gastroenterology 207RG0100X

* Indicates primary specialty

NPI Profile & details for MARK W DREYER

NPI Number 1396714861
Credentials MD
Entity Individual
Enumeration date 03/16/2006
Last updated 08/12/2014 - About 12 years ago
Sole proprietor1 No
Identifiers
  • WI License #: 23754-020
  • WI Medicaid: 30411200
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.

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