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Contact Information

RYAN C MUELLER, MD
321 REGENCY PARK STE 100
O'FALLON, IL62269-1887
 Phone: 618-416-7970
 Fax: 618-416-7971
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Radiation Oncology

2085R0001X 92 Physician/Radiation Oncology
 

Internal Medicine

207R00000X 11 Physician/Internal Medicine
Indicates primary specialty

NPI Profile & details for RYAN C MUELLER · (Male)

NPI # 1912571654
Status Active
Credentials MD
Entity Individual
Enumeration date 05/17/2021
Last updated 04/15/2026 - About 2 months ago
Sole proprietor 1 No
Identifiers
  • IL License # 036179545
  • IL License # 125077834
  • MO License # 2022017916
Hospital affiliation(s) Not Available
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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