Dr. Mark A. Zaetta, MD
- Medicare services, 2024
- 912
- Medicare patients, 2024
- 453
- Part D claims, 2024
- 10,949
- Hospital affiliations
- 1
- Industry payments
- $3,615
- Practice address
- 7510 N Oracle Rd, Tucson, AZ 85704
- Practice phone
- Call (520) 327-5461
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
TMC Medical Network
Tucson, Arizona
Find Dr. Zaetta's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark A. Zaetta is an internist in Tucson, Arizona
Dr. Zaetta practices at TMC Medical Network in Tucson, Arizona.
Dr. Zaetta's NPI, 1114901394, was assigned on December 1, 2005. Dr. Zaetta graduated from Temple University School of Medicine in 1991. Dr. Zaetta holds Arizona license 25691.
- NPI
- 1114901394NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315075819
- NPI enumeration date
- December 1, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (520) 327-5461
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Zaetta practices at TMC Medical Network in Tucson, Arizona
Dr. Zaetta's primary practice is TMC Medical Network, at 7510 N Oracle Rd, Tucson, AZ 85704 in Pima County. The practice phone is (520) 327-5461.
- TMC Medical Network7510 N Oracle Rd, Tucson, AZ 85704 · Pima CountyPhone(520) 327-5461
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark A. Zaetta is affiliated with 5 sites of care and 2 medical groups
Dr. Zaetta's primary practice is TMC Medical Network in Tucson, Arizona. Dr. Zaetta is also affiliated with Tucson Medical Center. The medical group on file is TMC Health (Tucson Medical Center). Dmand AI also links Dr. Zaetta to 2 more group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark A. Zaetta's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zaetta practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| TMC Medical Network | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark A. Zaetta is one of 2,420 internists in Arizona
Internal medicine is Dr. Zaetta's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zaetta is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Zaetta
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. Mark A. Zaetta billed Medicare for 912 services in 2024
CMS data shows 912 Medicare services from Dr. Zaetta across 11 procedure codes in 2024, for 453 Medicare patients. Medicare paid $86,291 for them. Every service was in an office.
Dr. Zaetta's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5512024: 5107%
- Other services
- 2023: 3782024: 3673%
- Tests and treatments
- 2023: 952024: 3563%
Dr. Zaetta compared with the Arizona median for internists, 2024
- Dr. Zaetta
- Arizona median
- Medicare services
- 912vs 47692% above
- Medicare patients
- 453vs 2052.2 times
- Part D claims
- 10,094vs 26038.8 times
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Zaetta'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zaetta and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Zaetta treated 453 Medicare patients in 2024, average age 78
CMS counts 453 Medicare patients who saw Dr. Zaetta in 2024. The largest group is 75 to 84, with 197 patients. 75% of them have high cholesterol, and 64% have high blood pressure. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zaetta's median patient age at 75, with 50% women.
Dr. Zaetta's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zaetta's Medicare patients by sex, 2024
- Women22249%
- Men23151%
Chronic conditions among Dr. Zaetta's Medicare patients, 2024
- High cholesterol75%
- High blood pressure64%
- Arthritis38%
- Chronic kidney disease22%
- Ischemic heart disease22%
- Mood disorders17%
- Anxiety16%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zaetta's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark A. Zaetta wrote 10,949 Medicare Part D claims in 2024
In 2024, Dr. Zaetta wrote 10,949 Medicare Part D claims for 1,045 patients. 89% of them were for generic drugs. CMS names the drug for 10,094 of them, across 143 drugs with 11 or more claims each, at $384,961 in total drug cost. In 2023, CMS named 10,957 claims across 146 drugs.
Dr. Zaetta's Part D claims by kind of drug, 2024
- Generic9,721 claims89%
- Brand-name1,154 claims11%
- Other74 claims1%
Dr. Zaetta'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. Zaetta's Part D claims, 2024
- Opioids4%407 of 10,949 claims
- Antibiotics1%146 of 10,949 claims
- Antipsychotics, patients 65 and over0%45 of 10,949 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: 10,9572024: 10,0948%
Drugs named by CMS: 143 in 2024, 146 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. Mark A. Zaetta offers telehealth to Medicare patients
Dr. Zaetta accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zaetta as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark A. Zaetta received $3,615 in industry payments from 2016 to 2025
CMS Open Payments shows 174 general payments to Dr. Zaetta from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Sirtex Medical Inc paid the most, $364.
General payments to Dr. Zaetta by program year, 2016 to 2025
General payments to Dr. Zaetta by kind, 2016 to 2025
- Food and beverage$3,58899%
- Education$271%
Companies that paid Dr. Zaetta 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. Mark A. Zaetta graduated from Temple University School of Medicine
Dr. Zaetta graduated from Temple University School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Zaetta'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Mark A. Zaetta
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. Mark A. Zaetta's NPI number?
Dr. Mark A. Zaetta's NPI number is 1114901394. It was assigned on December 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Zaetta?
Dr. Mark A. Zaetta is an internist in Tucson, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark A. Zaetta practice?
Dr. Zaetta practices at 7510 N Oracle Rd, Tucson, AZ 85704. Dr. Zaetta's primary practice is TMC Medical Network in Tucson, Arizona. Dmand AI also links Dr. Zaetta to 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Mark A. Zaetta's office phone number?
The practice phone on file for Dr. Zaetta is (520) 327-5461.
What is Dr. Mark A. Zaetta's medical license number?
Dr. Zaetta holds Arizona license 25691.
Which hospitals is Dr. Mark A. Zaetta affiliated with?
Dr. Zaetta is affiliated with Tucson Medical Center.
What medical group is Dr. Mark A. Zaetta part of?
Dr. Zaetta is linked to TMC Health (Tucson Medical Center). Dmand AI links Dr. Zaetta to 1 more medical group.
Does Dr. Mark A. Zaetta accept Medicare?
Yes. CMS data shows Dr. Zaetta billed Medicare for 912 services in 2024, and Dr. Zaetta accepts Medicare assignment.
Does Dr. Mark A. Zaetta offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zaetta as offering telehealth services.
How many Medicare patients does Dr. Mark A. Zaetta see?
CMS counts 453 Medicare patients who saw Dr. Zaetta in 2024, with an average age of 78.
Show 5 more questionsShow fewer questions
What services does Dr. Mark A. Zaetta bill to Medicare?
In 2024, Dr. Zaetta's most billed Medicare services were medicare service (G0439), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Mark A. Zaetta go to medical school?
Dr. Zaetta graduated from Temple University School of Medicine in 1991.
What drugs does Dr. Mark A. Zaetta prescribe most?
In 2024 Medicare Part D data, Dr. Zaetta's most prescribed drugs by claims were Rosuvastatin Calcium, Levothyroxine Sodium and Lisinopril.
Has Dr. Mark A. Zaetta received payments from drug or device companies?
CMS Open Payments shows $3,615 in general payments to Dr. Zaetta from 37 companies from 2016 to 2025. The largest total came from Sirtex Medical Inc.
How long has Dr. Mark A. Zaetta been practicing?
Dr. Zaetta graduated from medical school in 1991, 35 years ago.
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