Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Nicholas John Mayer, DO

Individual provider Nephrology Physician · NPI 1104075597

Dr. Nicholas John Mayer, DO is an Internal Medicine in Florissant, Missouri. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2004, 22 years ago. Practices with St Louis Kidney Care LLC, an 8-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Missouri.

Years since qualifying
22
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
IL, MO
In the registry since
2008
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1265 Graham Rd Ste 1
Florissant, MO 63031-8018
Phone: (314) 741-1600
Fax: (314) 741-1677
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2044 Madison Ave Ste 15, Granite City, IL 62040-4641 — (314) 741-1600

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 2009007663 (MO)
Nephrology Physician Taxonomy 207RN0300X · Licence 036123985 (IL)

Record details

NPI number1104075597
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 10, 2008
Last updated in NPPESMay 22, 2024
Certification dateMay 22, 2024
Mailing address1265 Graham Rd Ste 1, Florissant, MO 63031-8018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesNEPHROLOGY
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 2004 (22 years in practice)
Group practice St Louis Kidney Care Llc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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