DR. GRANT JOHNSON D.O.
NPI 1851778609
Urology in Smyrna, TN
About Dr. Grant Johnson D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRANT JOHNSON D.O. (NPI 1851778609) is an individual urology provider in Smyrna, Tennessee, licensed in Tennessee (4082) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Ascension Saint Thomas Hospital, and maintains a secondary practice location in Nashville.
NPPES Registry Identity
Specialties & Licenses
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Grant Johnson D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 23
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Saint Thomas Hospital
Acute Care Hospitals · Nashville, TNTristar Summit Medical Center
Acute Care Hospitals · Hermitage, TNTristar Southern Hills Medical Center
Acute Care Hospitals · Nashville, TNTristar Stonecrest Medical Center
Acute Care Hospitals · Smyrna, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37167 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Grant Johnson's NPI number?
The NPI number for Grant Johnson is 1851778609. It was assigned to this individual provider in the NPPES registry on April 30, 2015.
Where is Grant Johnson located?
Grant Johnson practices at 521 Stonecrest Pkwy Ste 202, Smyrna, TN 37167. The listed phone number is (615) 459-3330.
What is Grant Johnson's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Grant Johnson enrolled in Medicare?
Yes. Grant Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Grant Johnson accept?
Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 4 other insurers list Grant Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Grant Johnson affiliated with any hospitals?
According to CMS data, Grant Johnson is affiliated with Ascension Saint Thomas Hospital, Tristar Summit Medical Center, Tristar Southern Hills Medical Center and Tristar Stonecrest Medical Center.
When was this NPI record last updated?
The NPPES record for Grant Johnson was last updated on February 24, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.