John Vanderzyl, MD
NPI 1396848990 · Family Medicine Physician · Sugar Land, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Vanderzyl, MD is a Family Medicine Physician provider in Sugar Land, TX (NPI 1396848990).
Provider details
- NPI number
- 1396848990
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- J0328 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
3,577 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 848 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 742 | $122 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 646 | $123 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 303 | $14 |
| Automated Urinalysis Test81003 | 209 | $2 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 149 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 635 | 180 |
| Atorvastatin Calcium | 632 | 191 |
| Amlodipine Besylate | 465 | 141 |
| Rosuvastatin Calcium | 452 | 142 |
| Losartan Potassium | 400 | 120 |
| Lisinopril | 282 | 83 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,189 across 133 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
- 2006-09-07
- Last updated
- 2026-05-15
- Certified
- 2026-05-15
Frequently asked questions
- What is John Vanderzyl's NPI number?
- John Vanderzyl's National Provider Identifier (NPI) is 1396848990, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Vanderzyl's specialty?
- John Vanderzyl is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Vanderzyl located?
- John Vanderzyl's practice location on file with NPPES is 16902 Southwest Fwy Ste 100, Sugar Land, TX 77479-3574.
- What is John Vanderzyl's phone number?
- The practice phone number listed in the NPPES registry for John Vanderzyl is (281) 565-2800.
- Does John Vanderzyl accept Medicare?
- John Vanderzyl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Vanderzyl's NPI active?
- Yes — John Vanderzyl's NPI (1396848990) is active in the NPPES registry as of the last update on 2026-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.