Drs. Woo & Ullrich - Nova Pdo, PLLC
21785 Filigree CT Ste 208, Ashburn, VA 20147
The registry record
- NPI
- 1801566740
- Registered as
- Type-2 organization (not an individual dentist's personal NPI)
- Dental categories
- General, Pediatric
- Taxonomy codes
- 1223G0001X (General practice dentistry); 1223P0221X (Pediatric dentistry)
- Practice location
- 21785 Filigree CT Ste 208, Ashburn, VA 20147
- Telephone
- (703) 729-7005
- NPI issued
- 13 September 2021 (4 years ago)
- Record updated
- 13 September 2021 (4 years ago)
- Certified by the practice
- 13 September 2021
- NPI status
- NPI active as reported by CMS 2026-08
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV (metropolitan area, Loudoun County)
- State
- Virginia (3,566 registered practices)
- Same address
- Ashburn Modern Dentistry
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 10 August 2026
What the record tells you
Drs. Woo & Ullrich - Nova Pdo, PLLC is an NPI registry record for a dental organization at 21785 Filigree CT Ste 208 in Ashburn, Virginia 20147. CMS issued NPI 1801566740 on 13 September 2021, and the practice last updated its own entry on 13 September 2021. That was 4 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), Pediatric dentistry (1223P0221X). 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. One other dental record shares the street address: Ashburn Modern Dentistry.
Ashburn holds 51 registered dental practices inside the Washington-Arlington-Alexandria, DC-VA-MD-WV area, which has 1,712 in total on the Virginia side and ranks 1st in the state. 27 of the Ashburn records also register general dentistry, so this is one of several local options in that category. Across the metro the mix runs general dentistry 61.2%, dental clinic or center 22%, orthodontics 7.1%. The closest other registered practices are Nova Pediatric Dentistry (0 miles, Ashburn), Ashburn Modern Dentistry (0 miles, Ashburn) and Premier Oral Facial & Implant Surgery (1.2 miles, Ashburn), with 2 more inside 1.2 miles.
On our figures a routine adult cleaning in Virginia runs $115 to $170 cash and scaling and root planing $185 to $285 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 (703) 729-7005 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 21785 Filigree CT Ste 208, 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 |
|---|---|---|---|---|
| Nova Pediatric Dentistry | Ashburn, VA | 0 mi | Pediatric | (703) 729-7005 |
| Ashburn Modern Dentistry | Ashburn, VA | 0 mi | General | (571) 214-6029 |
| Premier Oral Facial & Implant Surgery | Ashburn, VA | 1.2 mi | Oral surgery | (571) 291-3244 |
| Virginia Dental Solutions of Ashburn PLLC | Ashburn, VA | 1.2 mi | General, Endodontics, Prosthodontics | (703) 858-0000 |
| Dental Den | Ashburn, VA | 1.2 mi | General | (571) 491-4355 |
The benchmark to hold a quote from Drs. Woo & Ullrich - Nova Pdo, PLLC 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 Drs. Woo & Ullrich - Nova Pdo, PLLC.
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.