Smiles Dental
Registered legal name: Mountain Smiles - Longview Dental, PLLC
900 Fir St Ste 1D, Longview, WA 98632
The registry record
- NPI
- 1528867108
- Registered as
- Type-2 organization (not an individual dentist's personal NPI)
- Dental categories
- General, Orthodontics, Endodontics, Periodontics, Prosthodontics, Other specialty
- Taxonomy codes
- 122300000X (Dentist); 1223D0004X (Dental anesthesiology); 1223E0200X (Endodontics); 1223G0001X (General practice dentistry); 1223P0106X (Oral and maxillofacial pathology); 1223P0300X (Periodontics); 1223P0700X (Prosthodontics); 1223X0400X (Orthodontics and dentofacial orthopedics)
- Also registered
- 122400000X, 124Q00000X, 126800000X
- Practice location
- 900 Fir St Ste 1D, Longview, WA 98632
- Telephone
- (360) 261-6094
- NPI issued
- 7 March 2025 (1 years ago)
- Record updated
- 7 March 2025 (1 years ago)
- Certified by the practice
- 18 February 2025
- NPI status
- NPI active as reported by CMS 2026-08
- Metro area
- Longview-Kelso, WA (metropolitan area, Cowlitz County)
- State
- Washington (4,077 registered practices)
- Operator size
- 6 addresses registered under this organization name nationally
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 10 August 2026
What the record tells you
Smiles Dental, the trading name of Mountain Smiles - Longview Dental, PLLC, is an NPI registry record for a dental organization at 900 Fir St Ste 1D in Longview, Washington 98632. CMS issued NPI 1528867108 on 7 March 2025, and the practice last updated its own entry on 7 March 2025. That is recent, so the contact details are likely to be current.
It is registered under 8 dental taxonomy codes: Dentist (122300000X), Dental anesthesiology (1223D0004X), Endodontics (1223E0200X), General practice dentistry (1223G0001X), Oral and maxillofacial pathology (1223P0106X), Periodontics (1223P0300X), Prosthodontics (1223P0700X), Orthodontics and dentofacial orthopedics (1223X0400X). That puts it in 6 categories on this site, led by general 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. The record also carries 122400000x, 124q00000x and 126800000x, which is a staffing signal rather than a service in its own right. The same registered name appears at 6 distinct addresses nationally. That is either a group practice or a name common enough that unrelated offices share it, so ask whether pricing is set locally or by a parent company.
Longview holds 41 registered dental practices inside the Longview-Kelso, WA area, which has 51 in total on the Washington side and ranks 11th in the state. 26 of the Longview records also register general dentistry, so this is one of several local options in that category. Across the metro the mix runs general dentistry 62.7%, dental clinic or center 25.5%, orthodontics 9.8%. The closest other registered practices are Dunivin Denture LLC (0.1 miles, Longview), John Berwind DDS Ps (0.1 miles, Longview) and Teresa H Connors DDS, Ps (0.1 miles, Longview), with 2 more inside 0.2 miles.
On our figures a routine adult cleaning in Washington runs $120 to $180 cash and scaling and root planing $190 to $300 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 (360) 261-6094 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 900 Fir St Ste 1D, 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 |
|---|---|---|---|---|
| Dunivin Denture LLC | Longview, WA | 0.1 mi | Dental clinic | (360) 232-8756 |
| John Berwind DDS Ps | Longview, WA | 0.1 mi | General | (360) 423-4020 |
| Teresa H Connors DDS, Ps | Longview, WA | 0.1 mi | General | (360) 636-2100 |
| Advanced Dental Services | Longview, WA | 0.2 mi | General | (360) 425-4900 |
| Timothy E Nelson DDS Ps | Longview, WA | 0.2 mi | Oral surgery | (360) 425-7220 |
The benchmark to hold a quote from Smiles Dental 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 Smiles Dental.
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.