Ann Allergy Asthma Immunol
Dermatitis, AtopicSleepSleep Wake Disorders
Dr. Zachary Wade Marshall, MD
NPI1912343419PAC ID1658614854
- Medicare services, 2024
- 4,647
- Medicare patients, 2024
- 181
- Part D claims, 2024
- 627
- Publications
- 2
- Industry payments
- $19,455
- Practice address
- 4710 Bellaire Blvd Suite 200 Suite 200, Bellaire, TX 77401-4505
- Practice phone
- Call (713) 661-1444
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mcgovern Allergy And Asthma Clinic, P.a.
Medical specialty practice · Bellaire, Texas
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Dr. Zachary Wade Marshall is an allergy physician in Bellaire, Texas
Dr. Marshall practices at Mcgovern Allergy And Asthma Clinic, P.a. in Bellaire, Texas.
Dr. Marshall's NPI, 1912343419, was assigned on May 12, 2013. Dr. Marshall graduated from McGovern Medical School in 2013. Dr. Marshall holds Texas license R5893.
NPI and contact details
- NPI
- 1912343419NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658614854
- NPI enumeration date
- May 12, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (713) 661-1444
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary Wade Marshall practices at Mcgovern Allergy and Asthma Clinic, P.a. in Bellaire, Texas
Dr. Marshall's primary practice is Mcgovern Allergy and Asthma Clinic, P.a., at 4710 Bellaire Blvd Suite 200 Suite 200, Bellaire, TX 77401-4505. The practice phone is (713) 661-1444.
- Mcgovern Allergy and Asthma Clinic, P.a.4710 Bellaire Blvd Suite 200 Suite 200, Bellaire, TX 77401-4505Phone(713) 661-1444
Source: Dmand AI Affiliation Data
Dr. Zachary Wade Marshall is affiliated with 1 site of care and 1 medical group
Dr. Marshall's primary practice is Mcgovern Allergy And Asthma Clinic, P.a. in Bellaire, Texas. The medical group on file is McGovern Allergy & Asthma Clinic.
Mcgovern Allergy And Asthma Clinic, P.a.Primary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Zachary Wade Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshall practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mcgovern Allergy And Asthma Clinic, P.a. | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary Wade Marshall is one of 71 allergy physicians in Texas
Allergy is Dr. Marshall's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Marshall is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dr. Marshall is licensed in Texas.
Specialties and state licenses
- Allergy, TexasPrimary
Clinical focus
Dmand AI lists acute sinusitis, asthma, chronic nasal allergies, hives and upper respiratory infection (URI) among the conditions Dr. Marshall treats.
Allergy physicians near Dr. Marshall
Counts of allergy physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Zachary Wade Marshall billed Medicare for 4,647 services in 2024
CMS data shows 4,647 Medicare services from Dr. Marshall across 14 procedure codes in 2024, for 181 Medicare patients. Medicare paid $55,342 for them. Every service was in an office.
Medicare services, 20244,647
Medicare patients181
Paid by Medicare$55,342
Procedure codes14
Dr. Marshall's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3,5842024: 4,42724%
- Office and hospital visits
- 2023: 1402024: 17928%
- Other services
- 2023: 112024: 41273%
Dr. Marshall compared with the Texas median for allergy physicians, 2024
- Dr. Marshall
- Texas median
- Medicare services
- 4,647vs 2,40094% above
- Medicare patients
- 181vs 12248% above
- Part D claims
- 511vs 36341% above
Medians across 67 allergy physicians in Texas with Dmand AI profiles that report each measure.
Dr. Marshall's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Wade Marshall treated 181 Medicare patients in 2024, average age 74
CMS counts 181 Medicare patients who saw Dr. Marshall in 2024. The largest group is 65 to 74, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marshall's median patient age at 43, with 55% women.
Medicare patients, 2024181
Average age74
Average risk score0.96
Dr. Marshall's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Marshall's Medicare patients by sex, 2024
- Women12167%
- Men6033%
Chronic conditions among Dr. Marshall's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Asthma37%
- Anxiety34%
- Ischemic heart disease31%
- Osteoporosis26%
- Diabetes23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary Wade Marshall wrote 627 Medicare Part D claims in 2024
In 2024, Dr. Marshall wrote 627 Medicare Part D claims for 149 patients. 70% of them were for generic drugs. CMS names the drug for 511 of them, across 20 drugs with 11 or more claims each, at $160,674 in total drug cost. In 2023, CMS named 410 claims across 16 drugs.
Part D claims, 2024627
Drugs named by CMS20
Total drug cost$160,674
Part D patients149
Dr. Marshall's Part D claims by kind of drug, 2024
- Generic442 claims70%
- Brand-name and other185 claims30%
Dr. Marshall's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Marshall's Part D claims, 2024
- Antibiotics8%51 of 627 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4102024: 51125%
Drugs named by CMS: 20 in 2024, 16 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Zachary Wade Marshall offers telehealth to Medicare patients
Dr. Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marshall as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Zachary Wade Marshall has 2 publications on record
Dmand AI links 2 papers to Dr. Marshall in 2022. Dr. Marshall's most frequent co-authors are David Brian Corry, MD, Farrah Kheradmand, MD and Evan Li, MD.
Papers2
Dr. Marshall's most frequent co-authors
Recent publications by Dr. Marshall
Ann Am Thorac Soc
Antifungal AgentsFibrinogenLung Diseases, Obstructive
See who Dr. Marshall researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marshall works with, so you can find a warm path to the right allergy physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Zachary Wade Marshall received $19,455 in industry payments from 2016 to 2025
CMS Open Payments shows 836 general payments to Dr. Marshall from 36 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,481.
General payments to Dr. Marshall by program year, 2016 to 2025
General payments to Dr. Marshall by kind, 2016 to 2025
$19.5Kin total
- Food and beverage$18,46895%
- Travel and lodging$7004%
- Education$2871%
Companies that paid Dr. Marshall the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Wade Marshall graduated from McGovern Medical School
Dr. Marshall graduated from McGovern Medical School in 2013.
- Medical school
- Board certified in allergy & immunology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Zachary Wade Marshall accepts plans from 21 insurance carriers
Dr. Marshall is in network with 21 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Humana
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- +13 more carriersWith a free account
Plan types Dr. Marshall accepts, by number of carriers
- PPO15
- HMO11
- Medicare9
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Zachary Wade Marshall's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Zachary Wade Marshall
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Zachary Wade Marshall's NPI number?
Dr. Zachary Wade Marshall's NPI number is 1912343419. It was assigned on May 12, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Wade Marshall?
Dr. Zachary Wade Marshall is an allergy physician in Bellaire, Texas. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).
Where does Dr. Zachary Wade Marshall practice?
Dr. Marshall practices at 4710 Bellaire Blvd Suite 200 Suite 200, Bellaire, TX 77401-4505. Dr. Marshall's primary practice is Mcgovern Allergy And Asthma Clinic, P.a. in Bellaire, Texas.
What is Dr. Zachary Wade Marshall's office phone number?
The practice phone on file for Dr. Marshall is (713) 661-1444.
What is Dr. Zachary Wade Marshall's medical license number?
Dr. Marshall holds Texas license R5893.
What medical group is Dr. Zachary Wade Marshall part of?
Dr. Marshall is linked to McGovern Allergy & Asthma Clinic.
Does Dr. Zachary Wade Marshall accept Medicare?
Yes. CMS data shows Dr. Marshall billed Medicare for 4,647 services in 2024, and Dr. Marshall accepts Medicare assignment.
Does Dr. Zachary Wade Marshall offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Marshall as offering telehealth services.
How many Medicare patients does Dr. Zachary Wade Marshall see?
CMS counts 181 Medicare patients who saw Dr. Marshall in 2024, with an average age of 74.
Is Dr. Zachary Wade Marshall board certified?
Yes. Dr. Marshall is board certified in allergy & immunology by the American Board of Allergy and Immunology.
Show 8 more questionsShow fewer questions
What services does Dr. Zachary Wade Marshall bill to Medicare?
In 2024, Dr. Marshall's most billed Medicare services were allergy test or treatment (95144), allergy test or treatment (95004) and allergy test or treatment (95165).
Where did Dr. Zachary Wade Marshall go to medical school?
Dr. Marshall graduated from McGovern Medical School in 2013.
What drugs does Dr. Zachary Wade Marshall prescribe most?
In 2024 Medicare Part D data, Dr. Marshall's most prescribed drugs by claims were Ipratropium Bromide, Azelastine HCl and Epinephrine.
Has Dr. Zachary Wade Marshall received payments from drug or device companies?
CMS Open Payments shows $19,455 in general payments to Dr. Marshall from 36 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Zachary Wade Marshall been practicing?
Dr. Marshall graduated from medical school in 2013, 13 years ago.
Does Dr. Zachary Wade Marshall do research?
Dmand AI links 2 publications to Dr. Marshall.
Who does Dr. Zachary Wade Marshall publish with?
Dr. Marshall's most frequent co-authors are David Brian Corry, MD (1 shared paper), Farrah Kheradmand, MD (1 shared paper) and Evan Li, MD (1 shared paper).
What insurance does Dr. Zachary Wade Marshall accept?
Dr. Marshall is in network with 21 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.
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