Tung Nguyen, DDS
NPI 1639559446 · Dentist · Oklahoma City, OK
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tung Nguyen, DDS is a Dentist provider in Oklahoma City, OK (NPI 1639559446).
Provider details
- NPI number
- 1639559446
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 6688 (OK)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 106 | 87 |
| Ibuprofen | 94 | 78 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 68 | 61 |
| Clindamycin Hcl | 20 | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-06
- Last updated
- 2016-09-28
Frequently asked questions
- What is Tung Nguyen's NPI number?
- Tung Nguyen's National Provider Identifier (NPI) is 1639559446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tung Nguyen's specialty?
- Tung Nguyen is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Tung Nguyen located?
- Tung Nguyen's practice location on file with NPPES is 5691 Tinker Diagonal, Oklahoma City, OK 73110-2821.
- What is Tung Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Tung Nguyen is (405) 458-5020.
- Does Tung Nguyen accept Medicare?
- Tung Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tung Nguyen's NPI active?
- Yes — Tung Nguyen's NPI (1639559446) is active in the NPPES registry as of the last update on 2016-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.