Lalangas Family Dentistry
Registered legal name: Constantina Lalangas
17475 Preston Rd, Dallas, TX 75252
The registry record
- NPI
- 1447940903
- Registered as
- Type-2 organization (not an individual dentist's personal NPI)
- Dental categories
- General, Oral surgery
- Taxonomy codes
- 1223G0001X (General practice dentistry); 1223S0112X (Oral and maxillofacial surgery)
- Practice location
- 17475 Preston Rd, Dallas, TX 75252
- Telephone
- (972) 930-1700
- NPI issued
- 9 May 2023 (3 years ago)
- Record updated
- 9 May 2023 (3 years ago)
- Certified by the practice
- 9 May 2023
- NPI status
- NPI active as reported by CMS 2026-09
- City
- Dallas, TX (795 registered dental practices)
- Metro area
- Dallas-Fort Worth-Arlington, TX (metropolitan area, Collin County)
- State
- Texas (12,713 registered practices)
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 14 September 2026
What the record tells you
Lalangas Family Dentistry, the trading name of Constantina Lalangas, is an NPI registry record for a dental organization at 17475 Preston Rd in Dallas, Texas 75252. CMS issued NPI 1447940903 on 9 May 2023, and the practice last updated its own entry on 9 May 2023. That was 3 years ago; the details are probably current, but confirm the address when you book.
It is registered under 2 dental taxonomy codes: General practice dentistry (1223G0001X), Oral and maxillofacial surgery (1223S0112X). That puts it in 2 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. 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.
Dallas holds 795 registered dental practices inside the Dallas-Fort Worth-Arlington, TX area, which has 4,384 in total on the Texas side and ranks 1st in the state. 565 of the Dallas records also register general dentistry, so this is one of several local options in that category. Across the metro the mix runs general dentistry 69.2%, dental clinic or center 15.3%, orthodontics 8.2%. The closest other registered practices are Anna Cowdin Dental LLC (0.1 miles, Dallas), Dallas Dentique PLLC (0.3 miles, Dallas) and Sunset Oaks Dental P.A. (0.3 miles, Dallas), with 2 more inside 0.3 miles.
On our figures a routine adult cleaning in Texas runs $100 to $155 cash and scaling and root planing $175 to $270 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 (972) 930-1700 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 17475 Preston Rd, 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 |
|---|---|---|---|---|
| Anna Cowdin Dental LLC | Dallas, TX | 0.1 mi | General | (972) 380-6223 |
| Dallas Dentique PLLC | Dallas, TX | 0.3 mi | General | (214) 504-6317 |
| Sunset Oaks Dental P.A. | Dallas, TX | 0.3 mi | General | (972) 248-6684 |
| Preston Campbell Dental | Dallas, TX | 0.3 mi | General | (972) 233-9399 |
| Prudent Family Dentistry of North Dallas PLLC | Dallas, TX | 0.3 mi | General | (972) 512-0285 |
The benchmark to hold a quote from Lalangas Family Dentistry against. Texas cost guide.
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, September 2026, snapshot 14 September 2026. US federal public data (FOIA-disclosable, no charge). CMS NPI files. NPI registry records, status as reported by CMS in the September 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 Lalangas Family Dentistry.
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.