Isaac Van Sligtenhorst, MD
NPI 1194105064 · Family Medicine Physician · Spring, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Van Sligtenhorst, MD is a Family Medicine Physician provider in Spring, TX (NPI 1194105064).
Provider details
- NPI number
- 1194105064
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- S2188 (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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
71 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 37 | $124 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 34 | $16 |
Typical Medicare-allowed amounts for these services range $16–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 183 | 94 |
| Amlodipine Besylate | 157 | 71 |
| Rosuvastatin Calcium | 122 | 56 |
| Lisinopril | 76 | 41 |
| Metformin Hcl | 74 | 39 |
| Levothyroxine Sodium | 72 | 37 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$51 across 2 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
Additional practice locations (1)
- 8810 Antoine DrHouston, TX 77088-1626Phone: (713) 461-2915
Registry dates
- Enumerated
- 2015-06-04
- Last updated
- 2024-11-22
- Certified
- 2024-11-22
Frequently asked questions
- What is Isaac Van Sligtenhorst's NPI number?
- Isaac Van Sligtenhorst's National Provider Identifier (NPI) is 1194105064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Van Sligtenhorst's specialty?
- Isaac Van Sligtenhorst is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Van Sligtenhorst located?
- Isaac Van Sligtenhorst's practice location on file with NPPES is 4057 Riley Fuzzel Rd Ste 1100a, Spring, TX 77386-4632.
- What is Isaac Van Sligtenhorst's phone number?
- The practice phone number listed in the NPPES registry for Isaac Van Sligtenhorst is (281) 602-0440.
- Does Isaac Van Sligtenhorst accept Medicare?
- Isaac Van Sligtenhorst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Van Sligtenhorst's NPI active?
- Yes — Isaac Van Sligtenhorst's NPI (1194105064) is active in the NPPES registry as of the last update on 2024-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.