Sequence Orthodontics
603 Post Office Rd Ste 109, Waldorf, MD 20602
The registry record
- NPI
- 1568832558
- Registered as
- Type-2 organization (not an individual dentist's personal NPI)
- Dental categories
- Orthodontics, Pediatric
- Taxonomy codes
- 1223P0221X (Pediatric dentistry); 1223X0400X (Orthodontics and dentofacial orthopedics)
- Practice location
- 603 Post Office Rd Ste 109, Waldorf, MD 20602
- Telephone
- (617) 599-0599
- NPI issued
- 2 October 2015 (10 years ago)
- Record updated
- 17 June 2019 (7 years ago)
- NPI status
- NPI active as reported by CMS 2026-08
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV (metropolitan area, Charles County)
- State
- Maryland (2,590 registered practices)
- Operator size
- 2 addresses registered under this organization name nationally
- Same address
- Post Office Lake Dental Associates and Waldorf Oral Surgery LLC
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 10 August 2026
What the record tells you
Sequence Orthodontics is an NPI registry record for a dental organization at 603 Post Office Rd Ste 109 in Waldorf, Maryland 20602. CMS issued NPI 1568832558 on 2 October 2015, and the practice last updated its own entry on 17 June 2019. That was 7 years ago, so treat the phone number and the suite number as unconfirmed until someone answers.
It is registered under 2 dental taxonomy codes: Pediatric dentistry (1223P0221X), Orthodontics and dentofacial orthopedics (1223X0400X). That puts it in 2 categories on this site, led by orthodontics. 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 same registered name appears at 2 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. 2 other dental records share the street address: Post Office Lake Dental Associates and Waldorf Oral Surgery LLC.
Waldorf holds 42 registered dental practices inside the Washington-Arlington-Alexandria, DC-VA-MD-WV area, which has 1,232 in total on the Maryland side and ranks 1st in the state. 3 of the Waldorf records also register orthodontics, so this is one of only a handful of local options in that category. Across the metro the mix runs general dentistry 59.8%, dental clinic or center 20.2%, pediatric dentistry 8%. The closest other registered practices are Post Office Lake Dental Associates (0 miles, Waldorf), Waldorf Oral Surgery LLC (0 miles, Waldorf) and Lakeview Dental PC (0 miles, Waldorf), with 2 more inside 0.2 miles.
On our figures a routine adult cleaning in Maryland 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 (617) 599-0599 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 603 Post Office Rd Ste 109, 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 |
|---|---|---|---|---|
| Post Office Lake Dental Associates | Waldorf, MD | 0 mi | General | (301) 870-7077 |
| Waldorf Oral Surgery LLC | Waldorf, MD | 0 mi | Oral surgery | (301) 843-8303 |
| Lakeview Dental PC | Waldorf, MD | 0 mi | Dental clinic | (301) 843-3444 |
| Michael J Kuhn DDS PC | Waldorf, MD | 0.2 mi | Orthodontics | (301) 843-0620 |
| Acora Dental, LLC | Waldorf, MD | 0.2 mi | General | (301) 645-6004 |
The benchmark to hold a quote from Sequence Orthodontics 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 Sequence Orthodontics.
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.