Randi Siller, PA-C
NPI 1881918258 · Physician Assistant · Houston, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Randi Siller, PA-C is a Physician Assistant provider in Houston, TX (NPI 1881918258).
Provider details
- NPI number
- 1881918258
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA06515 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
98 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) |
|---|---|---|
| Biopsy and Aspiration of Bone Marrow Sample for Diagnosis38222 | 78 | $64 |
| Aspiration of Bone Marrow Sample for Diagnosis38220 | 20 | $57 |
Typical Medicare-allowed amounts for these services range $57–$64 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Valacyclovir Hclbrand: Valacyclovir | 78 | 20 |
| Tacrolimus | 41 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 36 | — |
| Pantoprazole Sodium | 26 | — |
| Atovaquone | 24 | — |
| Letermovirbrand: Prevymis | 20 | — |
| Prednisone | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$520 across 14 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
- 2010-03-15
- Last updated
- 2011-12-21
Frequently asked questions
- What is Randi Siller's NPI number?
- Randi Siller's National Provider Identifier (NPI) is 1881918258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Randi Siller's specialty?
- Randi Siller is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Randi Siller located?
- Randi Siller's practice location on file with NPPES is 1515 Holcombe Blvd, Houston, TX 77030-4009.
- What is Randi Siller's phone number?
- The practice phone number listed in the NPPES registry for Randi Siller is (713) 792-6161.
- Does Randi Siller accept Medicare?
- Randi Siller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Randi Siller's NPI active?
- Yes — Randi Siller's NPI (1881918258) is active in the NPPES registry as of the last update on 2011-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.