Tommy Sim, M.D.
NPI 1306872353 · Allergy Physician · Friendswood, TX
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tommy Sim, M.D. is a Allergy Physician provider in Friendswood, TX (NPI 1306872353).
Provider details
- NPI number
- 1306872353
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- H3753 (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
20 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
3,204 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 1,028 | $4 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 910 | $14 |
| Professional Service for Preparation and Provision of Single-Dose Vial of Allergen95144 | 763 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 226 | $126 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 200 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 335 | 122 |
| Fluticasone Propionate | 300 | 114 |
| Levocetirizine Dihydrochloride | 182 | 53 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 137 | 62 |
| Prednisone | 137 | 100 |
| Azelastine Hcl | 133 | 55 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 130 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$782 across 32 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
- 2006-06-23
- Last updated
- 2019-03-18
Frequently asked questions
- What is Tommy Sim's NPI number?
- Tommy Sim's National Provider Identifier (NPI) is 1306872353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tommy Sim's specialty?
- Tommy Sim is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Tommy Sim located?
- Tommy Sim's practice location on file with NPPES is 357 E Parkwood Ave, Friendswood, TX 77546-5147.
- What is Tommy Sim's phone number?
- The practice phone number listed in the NPPES registry for Tommy Sim is (281) 992-3274.
- Does Tommy Sim accept Medicare?
- Tommy Sim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tommy Sim's NPI active?
- Yes — Tommy Sim's NPI (1306872353) is active in the NPPES registry as of the last update on 2019-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.