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

Dr. Ruheri A Perez-Tamayo, MD, PHD

Individual provider Surgical Critical Care Physician · NPI 1881655397

Dr. Ruheri A Perez-Tamayo, MD, PHD is a Cardiac Surgery in McHenry, Illinois. Qualified in 1990, 36 years ago. Practices with Loyola University Medical Center, a 946-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
36
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

4309 Medical Center Dr Ste A200
McHenry, IL 60050
Phone: (815) 759-4699
Fax: (815) 759-8938
Show map & directions

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

Additional practice locations (1)

  • 1205 S Main St Ste 101, Crown Point, IN 46307-3677 — (219) 662-0077

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 036100023 (IL)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence 036100023 (IL)

Record details

NPI number1881655397
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedApril 1, 2006
Last updated in NPPESFebruary 4, 2022
Certification dateFebruary 4, 2022

Medicare enrollment

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

Medicare specialtyCARDIAC SURGERY
Also practisesCRITICAL CARE (INTENSIVISTS), GENERAL SURGERY, THORACIC SURGERY, VASCULAR SURGERY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Loyola University Medical Center — 946 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare