DR. GRANT JOHNSON D.O.
NPI 1851778609
Urology in Smyrna, TN

Active since April 30, 2015PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
521 STONECREST PKWY STE 202, SMYRNA, TN 37167(615) 459-3330(615) 459-2997 Get Directions Write a Review

NPPES record last updated: February 24, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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

NPI1851778609
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameDR. GRANT JOHNSONCredential: D.O.
Location Address521 STONECREST PKWY STE 202Smyrna, TN 37167-6898
Mailing Address2801 Charlotte AveNashville, TN 37209-4035 · (615) 250-9200 · Fax (615) 250-9251
Fax(615) 459-2997
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 30, 2015
Last NPPES UpdateFebruary 24, 2026
NPPES CertifiedFebruary 24, 2026
NPI 1851778609 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License Licensed in TN · 4082
Definition

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.

521 STONECREST PKWY STE 202, Smyrna, TN 37167

Secondary Practice Location 1

Location 12801 Charlotte AveNashville, TN 37209-4035 · Phone (615) 459-3330

Other Identifiers 1

Other4082TN · State License

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.

PECOS PAC ID2961798582
PECOS Enrollment IDI20200831001479
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
328 services186 patients
Ultrasound measurement of bladder capacity after voiding 51798
Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.
252 services159 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
218 services146 patients
Manual urinalysis test with examination using microscope, automated 81001
A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.
139 services91 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
106 services82 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
87 services87 patients

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, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440082
Location4220 Harding Rd, PO Box 380Nashville, TN 37205 · Davidson County
Emergency services Birthing friendly

Tristar Summit Medical Center

Acute Care Hospitals · Hermitage, TN
2/5 CMS rating
OwnershipProprietary
CMS Certification Number440150
Location5655 Frist BlvdHermitage, TN 37076 · Davidson County
Emergency services Birthing friendly

Tristar Southern Hills Medical Center

Acute Care Hospitals · Nashville, TN
3/5 CMS rating
OwnershipProprietary
CMS Certification Number440197
Location391 Wallace RdNashville, TN 37211 · Davidson County
Emergency services

Tristar Stonecrest Medical Center

Acute Care Hospitals · Smyrna, TN
3/5 CMS rating
OwnershipProprietary
CMS Certification Number440227
Location200 Stonecrest BoulevardSmyrna, TN 37167 · Rutherford County
Emergency services Birthing friendly

Physician 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.

New Patient
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
521 STONECREST PKWY STE 202
SMYRNA, TN 37167

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.