Therese Sison
NPI 1841618295 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Therese Sison is a Internal Medicine Physician provider in Houston, TX (NPI 1841618295).
Provider details
- NPI number
- 1841618295
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
760 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 | 260 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 | $91 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 82 | $130 |
| 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 | 77 | $16 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 68 | $19 |
| Admn Sarscov2 Vacc 1 Dose |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 208 | 68 |
| Rosuvastatin Calcium | 199 | 70 |
| Amlodipine Besylate | 124 | 48 |
| Levothyroxine Sodium | 115 | 40 |
| Losartan Potassium | 112 | 42 |
| Lisinopril | 111 | 35 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$793 across 42 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 (2)
- 6431 Fannin StSuite Msb 1.134Houston, TX 77030-1501Phone: (713) 500-6500Fax: (713) 500-6497
- 1001 Studewood St Ste 200bHouston, TX 77008Phone: (713) 363-9830
Registry dates
- Enumerated
- 2014-04-02
- Last updated
- 2025-04-23
- Certified
- 2025-04-23
Frequently asked questions
- What is Therese Sison's NPI number?
- Therese Sison's National Provider Identifier (NPI) is 1841618295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Therese Sison's specialty?
- Therese Sison is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Therese Sison located?
- Therese Sison's practice location on file with NPPES is 427 W 20th St Ste 500, Houston, TX 77008-2431.
- What is Therese Sison's phone number?
- The practice phone number listed in the NPPES registry for Therese Sison is (713) 363-9830.
- Does Therese Sison accept Medicare?
- Therese Sison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Therese Sison's NPI active?
- Yes — Therese Sison's NPI (1841618295) is active in the NPPES registry as of the last update on 2025-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.