Eileen Van Diest, M.D.
NPI 1356515217 · Endocrinology, Diabetes & Metabolism Physician · Boerne, TX
Enrolled with Medicare as Order and Referring Only - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eileen Van Diest, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Boerne, TX (NPI 1356515217).
Provider details
- NPI number
- 1356515217
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- M7978 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 267 | 37 |
| Levothyroxine Sodium | 79 | 20 |
| Liothyronine Sodium | 35 | — |
| Tizanidine Hcl | 33 | — |
| Evolocumabbrand: Repatha Sureclick | 30 | — |
| Gabapentin | 29 | — |
| Levothyroxine Sodiumbrand: Tirosint |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$352 across 22 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-22
- Last updated
- 2023-10-04
- Certified
- 2023-10-04
Frequently asked questions
- What is Eileen Van Diest's NPI number?
- Eileen Van Diest's National Provider Identifier (NPI) is 1356515217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eileen Van Diest's specialty?
- Eileen Van Diest is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Eileen Van Diest located?
- Eileen Van Diest's practice location on file with NPPES is 179 Enterprise Pkwy Ste 102, Boerne, TX 78006-8634.
- What is Eileen Van Diest's phone number?
- The practice phone number listed in the NPPES registry for Eileen Van Diest is (830) 219-4162.
- Does Eileen Van Diest accept Medicare?
- Eileen Van Diest is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eileen Van Diest's NPI active?
- Yes — Eileen Van Diest's NPI (1356515217) is active in the NPPES registry as of the last update on 2023-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.