William R. Johnson, DMD
4007 Valley View Dr, Louisville, KY 40216
The registry record
- NPI
- 1831694314
- Registered as
- Type-2 organization (not an individual dentist's personal NPI)
- Dental categories
- Pediatric, General
- Taxonomy codes
- 1223G0001X (General practice dentistry); 1223P0221X (Pediatric dentistry)
- Practice location
- 4007 Valley View Dr, Louisville, KY 40216
- Telephone
- (502) 448-0678
- NPI issued
- 27 March 2018 (8 years ago)
- Record updated
- 27 March 2018 (8 years ago)
- NPI status
- NPI active as reported by CMS 2026-08
- Metro area
- Louisville/Jefferson County, KY-IN (metropolitan area, Jefferson County)
- State
- Kentucky (1,243 registered practices)
- Sibling NPIs
- Samantha L. Johnson DMD LLC (1902627540)
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 10 August 2026
What the record tells you
William R. Johnson, DMD is an NPI registry record for a dental organization at 4007 Valley View Dr in Louisville, Kentucky 40216. CMS issued NPI 1831694314 on 27 March 2018, and the practice last updated its own entry on 27 March 2018. That was 8 years ago, so treat the phone number and the suite number as unconfirmed until someone answers.
It is registered under 2 dental taxonomy codes: General practice dentistry (1223G0001X), Pediatric dentistry (1223P0221X). That puts it in 2 categories on this site, led by pediatric dentistry. A practice that registers more than one category is telling CMS it does more than one kind of dental work at this address, which is why it has a page here rather than a row. No other address in the registry carries this name, though a practice trading under a chain brand often registers each office under its own legal name, so check the brand as well. One further NPI is registered to what looks like the same business at this address (Samantha L. Johnson DMD LLC, NPI 1902627540); it is covered by this page rather than given a page of their own.
Louisville holds 306 registered dental practices inside the Louisville/Jefferson County, KY-IN area, which has 397 in total on the Kentucky side and ranks 1st in the state. 27 of the Louisville records also register pediatric dentistry, so this is one of several local options in that category. Across the metro the mix runs general dentistry 51.9%, dental clinic or center 28.2%, pediatric dentistry 8.8%. The closest other registered practices are Ocean Dental of Kentucky (0.1 miles, Louisville), Smile Mission Kentucky (0.1 miles, Louisville) and Michael L Sturgeon DMD PSC (0.2 miles, Louisville), with 2 more inside 0.9 miles.
On our figures a routine adult cleaning in Kentucky runs $82 to $108 cash and scaling and root planing $155 to $240 per quadrant, against a US average of $125. This practice's own prices are not in the registry and never will be: NPPES holds identifiers, not fees. Call (502) 448-0678 and ask for the cash price on code D1110, whether the exam and X-rays are included, and whether they run a membership plan if you have no insurance.
Nearest alternatives
The 5 closest registered dental practices to 4007 Valley View Dr, straight-line distance. Rows without a link are listed on their metro page rather than having one of their own.
| Practice | City | Distance | Categories | Phone on the record |
|---|---|---|---|---|
| Ocean Dental of Kentucky | Louisville, KY | 0.1 mi | General | (502) 447-5699 |
| Smile Mission Kentucky | Louisville, KY | 0.1 mi | Dental clinic | (786) 358-2420 |
| Michael L Sturgeon DMD PSC | Louisville, KY | 0.2 mi | Dental clinic | (502) 448-8354 |
| Richard W. Keeling | Louisville, KY | 0.3 mi | General | (502) 447-7313 |
| Immediadent | Louisville, KY | 0.9 mi | General | (502) 447-3323 |
The benchmark to hold a quote from William R. Johnson, DMD against. All 50 states compared.
What to ask when you call
- The cash price for D1110, a routine adult cleaning, and whether the exam (D0120) and X-rays (D0274) are inside or outside that number.
- Whether you need scaling and root planing before a routine clean, and the per-quadrant price for D4341 or D4342 if so.
- Whether they run an in-house membership plan, and what it covers against what it costs a year.
- Whether they are taking new patients and how far out the next hygiene appointment is.
- The practice license, with your state dental board. An NPI is a billing identifier and proves nothing about licensing.
CMS NPPES NPI data file, August 2026, snapshot 10 August 2026. US federal public data (FOIA-disclosable, no charge). CMS NPI files. NPI registry records, status as reported by CMS in the August 2026 data dissemination file. NPPES is an identifier registry, not a license register: an NPI does not validate that a practice is licensed, accredited or currently open. Practices maintain their own NPPES entries. Every page shows the date the record was last updated; addresses and phone numbers are as self-reported and are not verified by us. This page describes a registry record. It is not a review, an endorsement or a check on William R. Johnson, DMD.
Price figures are our own, last verified April 2026. State averages are our estimates compiled from FAIR Health regional cost data and CMS Medicare fee schedules; the ADA discontinued its national Survey of Dental Fees in 2023, so no national fee survey exists. Treat them as a starting point and call two or three offices for an actual quote.