Dr. Tom Marco, DO

  • Tucson, AZ
  • Internist
NPI1093403156
Part D claims, 2024
24
Publications
3
Industry payments
$63
State license
1
Year NPI issued
2023
Practice address
3601 S 6th Ave, Tucson, AZ 85723
Practice phone
Call (702) 341-3152
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Southern Arizona VA Health Care System

Tucson, Arizona

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Dr. Tom Marco is an internist in Tucson, Arizona

Dr. Marco practices at Southern Arizona VA Health Care System in Tucson, Arizona.

Dr. Marco's NPI, 1093403156, was assigned on April 26, 2023. Dr. Marco holds Arizona license R4065.

NPI and contact details
NPI enumeration date
April 26, 2023
NPI status
Active
Practice phone
(702) 341-3152
Professional email
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Personal email
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Mobile number
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Sex
Female

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Tom Marco practices at Southern Arizona VA Health Care System in Tucson, Arizona

Dr. Marco's primary practice is Southern Arizona VA Health Care System, at 3601 S 6th Ave, Tucson, AZ 85723 in Pima County. The practice phone is (702) 341-3152.

  • Southern Arizona VA Health Care System
    3601 S 6th Ave, Tucson, AZ 85723 · Pima CountyPhone(702) 341-3152

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Tom Marco is affiliated with 1 site of care

Dr. Marco's primary practice is Southern Arizona VA Health Care System in Tucson, Arizona.

Southern Arizona VA Health Care SystemTucson, ArizonaPrimary

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. Tom Marco's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marco practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Southern Arizona VA Health Care SystemAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Tom Marco is one of 2,420 internists in Arizona

Internal medicine is Dr. Marco's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marco is licensed in Arizona.

Specialties and state licenses

  • Internal medicine, ArizonaPrimaryLicense R4065 · taxonomy 207R00000X

Internists near Dr. Marco

Counts of internists 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. Tom Marco's patients have a median age of 65

Across all payers, Dmand AI patient panel data puts Dr. Marco's median patient age at 65, with 43% women.

Dr. Marco's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women43%
  • Men55%

Source: Dmand AI Patient Panel Data

Dr. Tom Marco wrote 24 Medicare Part D claims in 2024

In 2024, Dr. Marco wrote 24 Medicare Part D claims. 79% of them were for generic drugs.

Part D claims, 202424

Dr. Marco's Part D claims by kind of drug, 2024

  • Generic19 claims79%
  • Brand-name and other5 claims21%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Tom Marco has 3 publications on record

Dmand AI links 3 papers to Dr. Marco, published from 2024 to 2025. Dr. Marco's most frequent co-authors are Amith Rao, MD, Mohanad Mohammed Al-Obaidi, MD and Zachary Hutchison Chun, MD.

Papers3
Years published2024 to 2025

Dr. Marco's most frequent co-authors

Recent publications by Dr. Marco

See all 3 publications and co-authors

See who Dr. Marco researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marco works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Tom Marco received $63 in industry payments from 2024 to 2025

CMS Open Payments shows 3 general payments to Dr. Marco from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. BeiGene, Ltd. paid the most, $29.

General payments to Dr. Marco by program year, 2024 to 2025

Companies that paid Dr. Marco the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Marco

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Tom Marco's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Tom Marco

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. Tom Marco's NPI number?

Dr. Tom Marco's NPI number is 1093403156. It was assigned on April 26, 2023, and it is active in the NPI Registry.

What kind of doctor is Dr. Tom Marco?

Dr. Tom Marco is an internist in Tucson, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Tom Marco practice?

Dr. Marco practices at 3601 S 6th Ave, Tucson, AZ 85723. Dr. Marco's primary practice is Southern Arizona VA Health Care System in Tucson, Arizona.

What is Dr. Tom Marco's office phone number?

The practice phone on file for Dr. Marco is (702) 341-3152.

What is Dr. Tom Marco's medical license number?

Dr. Marco holds Arizona license R4065.

Has Dr. Tom Marco received payments from drug or device companies?

CMS Open Payments shows $63 in general payments to Dr. Marco from 3 companies from 2024 to 2025. The largest total came from BeiGene, Ltd.

How long has Dr. Tom Marco been practicing?

Dr. Marco's NPI was assigned in 2023.

Does Dr. Tom Marco do research?

Dmand AI links 3 publications to Dr. Marco, published from 2024 to 2025.

Who does Dr. Tom Marco publish with?

Dr. Marco's most frequent co-authors are Amith Rao, MD (2 shared papers), Mohanad Mohammed Al-Obaidi, MD (1 shared paper) and Zachary Hutchison Chun, MD (1 shared paper).

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