Dr. Calvin E Oyer , MD
Pathology - Anatomic Pathology • Providence, RI
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Calvin Oyer has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Calvin Oyer, MD was a registered Pathology - Anatomic Pathology practicing in Providence, RI. Throughout an active medical career spanning 14 years, Dr. Oyer provided care at the practice location at 101 DUDLEY ST until profile deactivation on 2025-04-24.
Practice Location & Contact Primary Location
101 Dudley St
Providence, RI 029052401
Specialty Benchmarks & Practice Insights
Comparative analytics for Pathology - Anatomic Pathology in Providence, RI
Practicing in Providence, RI (37 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 207ZP0101X
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Social Worker - Clinical
Licensed Independent Clinical Social Worker
Nurse Practitioner - Family
Advanced Practice Registered Nurse
Advanced Practice Midwife
Registered Nurse, Certified Nurse Midwife
Nurse Practitioner - Family
Family Nurse Practitioner
Registered Nurse - Diabetes Educator
RNCDOE
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on April 24, 2025
NPI status registered as active in NPPES database
Registered at 101 DUDLEY ST, PROVIDENCE, RI 029052401 (Tel: 4012741122)
Registered at 101 DUDLEY ST, PHO OFFICE, PROVIDENCE, RI 029052401 (Tel: 4012741122)
Recorded as CALVIN OYER, MD
Pathology (License #MD07750 in RI)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
101 Dudley St, Pho Office
Providence, RI 029052401
Phone: 4012741122
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