Louis Tieu, D.D.S.,M.D.
NPI 1972641595 · Oral & Maxillofacial Surgery (D.M.D.) · Campbell, CA
Louis Tieu, D.D.S.,M.D. is a Oral & Maxillofacial Surgery (D.M.D.) provider in Campbell, CA (NPI 1972641595).
Provider details
- NPI number
- 1972641595
- Entity type
- Individual
- Primary specialty
- Oral & Maxillofacial Surgery (D.M.D.)Allopathic & Osteopathic Physicians
- Credential
- D.D.S.,M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 44633 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Penicillin V Potassium | 34 | 26 |
| Amoxicillin | 18 | — |
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
- 2007-02-03
- Last updated
- 2025-09-11
Frequently asked questions
- What is Louis Tieu's NPI number?
- Louis Tieu's National Provider Identifier (NPI) is 1972641595, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Tieu's specialty?
- Louis Tieu is listed in the NPPES registry with a primary specialty of Oral & Maxillofacial Surgery (D.M.D.) (Allopathic & Osteopathic Physicians).
- Where is Louis Tieu located?
- Louis Tieu's practice location on file with NPPES is 281 E Hamilton Ave, Campbell, CA 95008-0232.
- What is Louis Tieu's phone number?
- The practice phone number listed in the NPPES registry for Louis Tieu is (408) 871-2988.
- Is Louis Tieu's NPI active?
- Yes — Louis Tieu's NPI (1972641595) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.