Grant Johnson, D.O.
Urology Physician · Smyrna, TN
Grant Johnson, D.O. is a urology physician with a practice address in Smyrna, Tennessee, and NPI 1851778609, issued on Apr 30, 2015. Check the license (Tennessee 4082, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Grant Johnson
- Credential
- D.O.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 4082 TN
Self-reported in NPPES; status is on the state search - Practice location
- 521 Stonecrest Pkwy Ste 202, Smyrna, TN 37167
- Phone
- (615) 459-3330
- Enumerated
- Apr 30, 2015
- Record last updated
- Feb 24, 2026
- Fax
- (615) 459-2997
- Medicare enrollment
- Enrolled (PECOS I20200831001479); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest urology physician records → All 289 in Tennessee → Look up another NPI →
Also registered at 521 Stonecrest Pkwy Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emma PhippsPhysician Assistant1083593198
Verify Grant Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 4082Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average urology physician in 2024
1,074 Medicare Part D claims for 287 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 49 claims were for opioids.
Most prescribed
- Tamsulosin Hcl250 claims
- Solifenacin Succinate202 claims
- Gemtesa102 claims
- Orgovyx52 claims
- Ciprofloxacin Hcl49 claims
- Myrbetriq48 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,525.74
49 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Urology Associates PCNashville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grant Johnson among 289 urology physician records in Tennessee
Grant Johnson, D.O. is one of 289 urology physician records with a practice address in Tennessee. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 89% of them.
- NPI issued2015 · 89% of these records are older, 11% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2003 among the 185 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Tennessee
There are 289 urology physician records in Tennessee.
All 289 in Tennessee → Every provider in Smyrna → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Panchanan Satpathy, MDSpringfield, TN 371721982681342
- Benjamin Dehner, MDNashville, TN 372031649481938
- Joseph Pazona, MDNashville, TN 372031447422951
- Matthew Pollard, MDNashville, TN 372031720421886
- Ashley Tapscott, D.O.Nashville, TN 372031124282587
- Kelly Baldwin, D.O.Murfreesboro, TN 371291851354104
- Robert Bass, M.D.Murfreesboro, TN 371291003957952
- Kevin Billups, MDMurfreesboro, TN 371291942354949
Common questions
What is Grant Johnson, D.O.'s NPI number?
Grant Johnson, D.O.'s National Provider Identifier (NPI) is 1851778609, issued on Apr 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Grant Johnson, D.O. located?
The NPPES record lists a practice address at 521 Stonecrest Pkwy Ste 202, Smyrna, TN, 37167. Phone: (615) 459-3330. Providers update this record themselves, so call before visiting.
How can I verify Grant Johnson, D.O.'s license?
NPPES lists Tennessee license number 4082, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grant Johnson, D.O. prescribe under Medicare Part D?
In 2024, Grant Johnson, D.O. had 1,074 Medicare Part D claims for 287 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Grant Johnson, D.O.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.