Physician Profile
Zachary W. Marshall, M.D.
Unclaimed ProfileAbout Dr. Marshall
Based in Roanoke, TX, Zachary W. Marshall, M.D. is listed in the NPI registry under allergy. Zachary is also listed as specializing in internal medicine. Medicare claims data shows Zachary provided 4,647 services to 430 patients. The services billed most often include professional service for preparation and provision of single-dose vial of allergen, test for allergy using allergenic extract, and professional service for preparation and provision of 1 or more antigens.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (682) 593-9355
- Email not available
Practice Locations
205 N OAK ST UNIT B
Roanoke, TX 76262
Procedures Most Often Billed to Medicare
4,647 services · 430 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Professional service for preparation and provision of single-dose vial of allergen | Treatment | 95144 |
1,578 | Too few peers to compare |
| Test for allergy using allergenic extract | Treatment | 95004 |
1,568 | As often as other peers in Allergy |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
370 | Less often than most peers in Allergy |
| Test for allergy using allergenic extract injected into skin | Treatment | 95024 |
369 | As often as other peers in Allergy |
| Professional service for multiple injections of allergen | Treatment | 95117 |
209 | Less often than most peers in Allergy |
| Professional service for single injection of allergen | Treatment | 95115 |
148 | As often as other peers in Allergy |
| Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96401 |
80 | As often as other peers in Allergy |
| Administration and interpretation of patient-focused health risk assessment | Treatment | 96160 |
77 | More often than most peers in Allergy |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
16 | Less often than most peers in Allergy |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
12 | Less often than most peers in Allergy |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2013 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Professional service for preparation and provision of single-dose vial of allergen 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does Zachary W. Marshall specialize in?
Zachary W. Marshall is an allergy in Roanoke, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Zachary W. Marshall located?
Zachary W. Marshall is listed at 205 N Oak St Unit B, Roanoke, TX 76262. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Zachary W. Marshall's phone number?
The number on file is (682) 593-9355. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Zachary W. Marshall?
Zachary W. Marshall's National Provider Identifier is 1912343419. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Zachary W. Marshall train?
Zachary W. Marshall attended Other, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Zachary W. Marshall have?
Zachary W. Marshall has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What does Zachary W. Marshall do most often?
According to Medicare billing data, Zachary W. Marshall provides treatments such as professional service for preparation and provision of single-dose vial of allergen and test for allergy using allergenic extract, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Zachary W. Marshall's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Zachary W. Marshall. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.