Group One Smiles PLLC
210 Humphrey St, Marblehead, MA 01945
The registry record
- NPI
- 1245954619
- 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
- 210 Humphrey St, Marblehead, MA 01945
- Telephone
- (617) 909-5459
- NPI issued
- 29 September 2022 (3 years ago)
- Record updated
- 29 September 2022 (3 years ago)
- Certified by the practice
- 29 September 2022
- NPI status
- NPI active as reported by CMS 2026-08
- Metro area
- Boston-Cambridge-Newton, MA-NH (metropolitan area, Essex County)
- State
- Massachusetts (4,557 registered practices)
- Same address
- Cognata J DMD, MICHAEL&BARONE and Marblehead Pediatric Dentistry and Braces PC
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 10 August 2026
What the record tells you
Group One Smiles PLLC is an NPI registry record for a dental organization at 210 Humphrey St in Marblehead, Massachusetts 01945. CMS issued NPI 1245954619 on 29 September 2022, and the practice last updated its own entry on 29 September 2022. 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: 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. 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. 2 other dental records share the street address: Cognata J DMD, MICHAEL&BARONE and Marblehead Pediatric Dentistry and Braces PC.
Marblehead holds 11 registered dental practices inside the Boston-Cambridge-Newton, MA-NH area, which has 3,202 in total on the Massachusetts side and ranks 1st in the state. 2 of the Marblehead 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 58.7%, dental clinic or center 21.2%, orthodontics 8.2%. The closest other registered practices are Dr Jeffrey R Dornbush Pss PC (0 miles, Marblehead), Cognata J DMD, MICHAEL&BARONE (0 miles, Marblehead) and Marblehead Pediatric Dentistry and Braces PC (0 miles, Marblehead), with 2 more inside 0.7 miles.
On our figures a routine adult cleaning in Massachusetts runs $145 to $225 cash and scaling and root planing $215 to $350 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) 909-5459 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 210 Humphrey St, 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 |
|---|---|---|---|---|
| Dr Jeffrey R Dornbush Pss PC | Marblehead, MA | 0 mi | Prosthodontics | (781) 639-0700 |
| Cognata J DMD, MICHAEL&BARONE | Marblehead, MA | 0 mi | Orthodontics, Pediatric | (781) 639-4500 |
| Marblehead Pediatric Dentistry and Braces PC | Marblehead, MA | 0 mi | Pediatric | (781) 639-4500 |
| Weaver Orthodontics | Swampscott, MA | 0.6 mi | Orthodontics | (781) 581-1550 |
| Yvette Glina, DDS, LLC | Marblehead, MA | 0.7 mi | Dental clinic | (781) 631-3400 |
The benchmark to hold a quote from Group One Smiles 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 Group One Smiles 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.