Sung Ahn DDS, INC.
1490 E Foothill Blvd Ste B, Upland, CA 91786
The registry record
- NPI
- 1649817404
- Registered as
- Type-2 organization (not an individual dentist's personal NPI)
- Dental categories
- Dental clinic, General
- Taxonomy codes
- 122300000X (Dentist); 261QD0000X (Dental clinic or center)
- Practice location
- 1490 E Foothill Blvd Ste B, Upland, CA 91786
- Telephone
- (909) 256-4457
- NPI issued
- 28 November 2019 (6 years ago)
- Record updated
- 6 July 2021 (5 years ago)
- Certified by the practice
- 6 July 2021
- NPI status
- NPI active as reported by CMS 2026-08
- Metro area
- Riverside-San Bernardino-Ontario, CA (metropolitan area, San Bernardino County)
- State
- California (18,604 registered practices)
- Map position
- Census address match at street level
- Snapshot
- NPPES data dissemination file, 10 August 2026
What the record tells you
Sung Ahn DDS, INC. is an NPI registry record for a dental organization at 1490 E Foothill Blvd Ste B in Upland, California 91786. CMS issued NPI 1649817404 on 28 November 2019, and the practice last updated its own entry on 6 July 2021. That was 5 years ago, so treat the phone number and the suite number as unconfirmed until someone answers.
It is registered under 2 dental taxonomy codes: Dentist (122300000X), Dental clinic or center (261QD0000X). That puts it in 2 categories on this site, led by dental clinic or center. 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.
Upland holds 82 registered dental practices inside the Riverside-San Bernardino-Ontario, CA area, which has 2,054 in total on the California side and ranks 2nd in the state. 21 of the Upland records also register dental clinic or center, so this is one of several local options in that category. Across the metro the mix runs general dentistry 69.3%, dental clinic or center 19.8%, orthodontics 6%. The closest other registered practices are Ko and Nam DDS A Professional Dental Corporation (0.3 miles, Upland), Upland Dental Implant & Orthodontics (0.3 miles, Upland) and Mount Hill Dental (0.4 miles, Upland), with 2 more inside 0.4 miles.
On our figures a routine adult cleaning in California runs $130 to $200 cash and scaling and root planing $200 to $330 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 (909) 256-4457 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 1490 E Foothill Blvd Ste B, 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 |
|---|---|---|---|---|
| Ko and Nam DDS A Professional Dental Corporation | Upland, CA | 0.3 mi | Endodontics | (909) 303-3449 |
| Upland Dental Implant & Orthodontics | Upland, CA | 0.3 mi | Prosthodontics, General, Orthodontics, Pediatric, Endodontics, Periodontics | (909) 981-4111 |
| Mount Hill Dental | Upland, CA | 0.4 mi | General | (909) 981-5083 |
| Village Dental Care | Upland, CA | 0.4 mi | General | (909) 608-0700 |
| Zenith Smiles | Upland, CA | 0.4 mi | General | (909) 608-0700 |
The benchmark to hold a quote from Sung Ahn DDS, INC. against. California 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, 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 Sung Ahn DDS, INC..
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.