Thomas Vanderheyden, D.O.
NPI 1528222387 · Internal Medicine Physician · South Bend, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Vanderheyden, D.O. is a Internal Medicine Physician provider in South Bend, IN (NPI 1528222387).
Provider details
- NPI number
- 1528222387
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 125-050866 (IL)
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 tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
911 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 206 | $227 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 156 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 81 | $118 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 75 | $121 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 72 | $136 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 449 | 441 |
| Pantoprazole Sodium | 410 | 139 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 121 | 119 |
| Omeprazole | 111 | 42 |
| Azathioprine | 109 | 22 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 88 | 24 |
| Metoclopramide Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,831 across 116 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
- 2008-07-10
- Last updated
- 2012-08-28
Frequently asked questions
- What is Thomas Vanderheyden's NPI number?
- Thomas Vanderheyden's National Provider Identifier (NPI) is 1528222387, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Vanderheyden's specialty?
- Thomas Vanderheyden is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Vanderheyden located?
- Thomas Vanderheyden's practice location on file with NPPES is 17501 Generations Dr, South Bend, IN 46635-1589.
- What is Thomas Vanderheyden's phone number?
- The practice phone number listed in the NPPES registry for Thomas Vanderheyden is (574) 234-0049.
- Does Thomas Vanderheyden accept Medicare?
- Thomas Vanderheyden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Vanderheyden's NPI active?
- Yes — Thomas Vanderheyden's NPI (1528222387) is active in the NPPES registry as of the last update on 2012-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.