Ian Van Zyl, DDS, MS
NPI 1700096377 · Prosthodontics · Middletown, CA
Ian Van Zyl, DDS, MS is a Prosthodontics provider in Middletown, CA (NPI 1700096377).
Provider details
- NPI number
- 1700096377
- Entity type
- Individual
- Primary specialty
- ProsthodonticsDental Providers
- Credential
- DDS, MS
- Sex
- Male
- Sole proprietor
- No
- License
- 45050 (CA)
Specialties & taxonomies
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 |
|---|---|---|
| Amoxicillin | 21 | 19 |
| Chlorhexidine Gluconate | 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
- 2007-05-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ian Van Zyl's NPI number?
- Ian Van Zyl's National Provider Identifier (NPI) is 1700096377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Van Zyl's specialty?
- Ian Van Zyl is listed in the NPPES registry with a primary specialty of Prosthodontics (Dental Providers).
- Where is Ian Van Zyl located?
- Ian Van Zyl's practice location on file with NPPES is 21038 Calistoga St., Middletown, CA 95461-1124.
- What is Ian Van Zyl's phone number?
- The practice phone number listed in the NPPES registry for Ian Van Zyl is (707) 987-2773.
- Is Ian Van Zyl's NPI active?
- Yes — Ian Van Zyl's NPI (1700096377) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.