Zachary Marshall, M.D.
NPI 1912343419 · Allergy Physician · Roanoke, TX
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Marshall, M.D. is a Allergy Physician provider in Roanoke, TX (NPI 1912343419).
Provider details
- NPI number
- 1912343419
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- BP10046672 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
4,647 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) |
|---|---|---|
| Professional Service for Preparation and Provision of Single-Dose Vial of Allergen95144 | 1,578 | $16 |
| Test for Allergy Using Allergenic Extract95004 | 1,568 | $4 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 370 | $15 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 369 | $8 |
| Professional Service for Multiple Injections of Allergen95117 | 209 | $12 |
| Professional Service for Single Injection of Allergen95115 | 148 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 74 | 38 |
| Azelastine Hcl | 61 | 33 |
| Epinephrine | 50 | 44 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 36 | 20 |
| Fluticasone Propionate | 32 | 18 |
| Famotidine | 27 | 15 |
| Montelukast Sodium | 24 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,571 across 155 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
- 2013-05-12
- Last updated
- 2020-09-17
- Certified
- 2020-09-17
Frequently asked questions
- What is Zachary Marshall's NPI number?
- Zachary Marshall's National Provider Identifier (NPI) is 1912343419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Marshall's specialty?
- Zachary Marshall is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Marshall located?
- Zachary Marshall's practice location on file with NPPES is 205 N Oak St Unit B, Roanoke, TX 76262-7001.
- What is Zachary Marshall's phone number?
- The practice phone number listed in the NPPES registry for Zachary Marshall is (682) 593-9355.
- Does Zachary Marshall accept Medicare?
- Zachary Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Marshall's NPI active?
- Yes — Zachary Marshall's NPI (1912343419) is active in the NPPES registry as of the last update on 2020-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.