Medical Doctor Program year 2025 Reported 2019–2025 Source: CMS Open Payments, 2026 publication

Robert Zajac

Infectious Disease San Antonio, TX Medical Doctor

NPI 1013907963 CMS profile 1127

150 E Sonterra Blvd, Suite 170, San Antonio, TX 78258

Open in the dashboard

General payments

$9,689

442 records reported · program years 2019–2025

Research payments

$0

Paid to them · None reported · program years 2019–2025

Ownership & investment interest

$0

None reported

Through program year 2025, Robert Zajac of San Antonio, TX is reported in the CMS Open Payments database as having received $9,689 across 442 general payments and $0 in research payments paid to them.

No combined total General, research and ownership are kept apart. Each is reported under its own rules, and ownership is not money that moved at all but the value of a stake held. A meal, a clinical trial grant and a shareholding do not add up to anything meaningful, so this site does not add them.

General payments for this record sit in the 87th percentile of Infectious Disease profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

7 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $439 22
2024 General $487 24
2023 General $616 36
2022 General $826 53
2021 General $1,436 51
2020 General $2,844 87
2019 General $3,041 169

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • Robert Zajac
  • Infectious Disease median
  • Middle half of Infectious Disease
  • National median

In program year 2025, general payments to Robert Zajac were reported at $439. Among 3,905 Infectious Disease profiles paid that year, the median was $188 and the middle half received between $57 and $766.

Show as a table
Year Robert Zajac Infectious Disease median Middle half National median
2019 $3,041 $190 $60–$862 $163
2020 $2,844 $124 $32–$606 $114
2021 $1,436 $148 $38–$905 $132
2022 $826 $166 $50–$834 $149
2023 $616 $171 $57–$787 $160
2024 $487 $176 $52–$752 $164
2025 $439 $188 $57–$766 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. Cipla USA Inc. $2,041 16 payments
  2. ViiV Healthcare Company $1,813 102 payments
  3. Gilead Sciences, Inc. $1,133 60 payments
  4. Merck Sharp & Dohme Corporation $726 37 payments
  5. AbbVie, Inc. $726 49 payments
  6. Janssen Biotech, Inc. $527 29 payments
  7. Allergan Inc. $515 37 payments
  8. Grifols USA, LLC $338 18 payments
  9. Paratek Pharmaceuticals, Inc. $240 13 payments
  10. Theratechnologies Inc. $234 13 payments
  11. Other $1,397 68 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $9,583 436 payments
  2. Education $106 6 payments
Products named General payments · program years 2019–2025
  1. ZEMDRI (PLAZOMICIN) $2,041 16 payments
  2. DOVATO $1,145 67 payments
  3. DALVANCE $670 37 payments
  4. AVYCAZ $664 52 payments
  5. TEFLARO $469 33 payments
  6. ZERBAXA $435 16 payments
  7. SYMTUZA $418 23 payments
  8. CABENUVA $343 22 payments
  9. Gamunex-C $293 15 payments
  10. NUZYRA $240 13 payments
  11. Other $3,310 181 payments

A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.

Prescribing to Medicare patients

Part D · data year 2024 · 43 drugs

Part D claims

2,090

Median for Infectious Disease: 268

Drug cost

$1,547,250

Median for Infectious Disease: $217,595

Branded share of claims

32%

Median for Infectious Disease: 45.5%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Biktarvy Bictegrav/Emtricit/Tenofov Ala Brand 147 $582,857
Rukobia Fostemsavir Tromethamine Brand 30 $284,433
Genvoya Elviteg/Cob/Emtri/Tenof Alafen Brand 50 $193,865
Dovato Dolutegravir Sodium/Lamivudine Brand 23 $91,447
Juluca Dolutegravir/Rilpivirine Brand 20 $68,802
Zerbaxa Ceftolozane/Tazobactam Brand 16 $67,158
Descovy Emtricitabine/Tenofov Alafenam Brand 28 $58,249
Stribild Elviteg/Cob/Emtri/Tenofo Disop Brand 12 $57,137
Tivicay Dolutegravir Sodium Brand 14 $39,089
Daptomycin Generic 81 $24,533

The 10 drugs with the highest cost, of 43 counted.

Drug cost is what was paid for the drugs at the pharmacy — by Medicare, the patient and others — and is not money to the prescriber. Medicare Part D only: drugs dispensed to Medicare beneficiaries. A drug with fewer than 11 claims for this prescriber is not published, so a missing drug does not mean zero. The medians are for the 5,546 Part D prescribers listed as Infectious Disease; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 30 billing codes

Paid by Medicare

$265,002

Of which drugs: $139,960

Medicare patients

450

Average age 74

Services billed

4,800

237 women, 213 men among their patients

Share of this provider's Medicare patients with each condition
Condition among their Medicare patients Relative to the most common Share of patients
High blood pressure 75%
Arthritis 63%
Diabetes 50%
Ischemic heart disease 44%
Chronic kidney disease 43%
Depression 41%
Heart failure 35%
Atrial fibrillation 35%
Drugs given in the clinic that this provider billed Medicare Part B for
Drug given in the clinic Where Patients Services Paid by Medicare
Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg J1561 Office 13 2,110 $81,611

Medicare Part B only: services billed to Medicare. Rows covering fewer than 11 beneficiaries are not published. Only drugs given in the clinic are itemised here; the rest of what this provider billed is in the total above.

Payments and prescribing

First 5 of 9 products · payments 2024

Two separate records. The payments come from Open Payments and the claims from Medicare. They are set side by side because they name the same product; they do not show that a payment affected a prescription.

Products this doctor was paid in connection with in 2024, beside Medicare claims for the same product
Product Paid by Related payments Part D claims Part B services
DOVATO
  • ViiV Healthcare Company $83
$83 23 —
AVYCAZ
  • AbbVie, Inc. $51
$51 — —
DALVANCE
  • AbbVie, Inc. $51
$51 — —
TEFLARO
  • AbbVie, Inc. $51
$51 — —
Gamunex-C
  • Grifols USA, LLC $46
$46 — 2,110

A dash means Medicare published no figure for this doctor and product — fewer than 11 claims, or the product is not covered under that part — which is not the same as none. Payments are general payments only; one that names several products is split evenly between them, so an amount is payments related to the product, not money paid for it.

See all 9 in the dashboard with a free account

Records

442 reported

Every payment, record by record

Date, company, amount, what it was for and the product named — filter by year, kind and company, or download as CSV.

Other Infectious Disease in Texas

Related records

What this means

U.S. law requires drug and medical device manufacturers to report payments and transfers of value they make to physicians and teaching hospitals. The Centers for Medicare & Medicaid Services publishes that record each year. This page shows what was reported about this person, and nothing else.

An ownership interest is different from the other two. It is not a payment: it is a stake — shares, options, a partnership holding — that a physician or an immediate family member held in a manufacturer during that year. The figure shown is what the stake was reported to be worth.

Research payments frequently pass through a clinician to the institution running a trial, and rarely represent personal income. They should be read differently from general payments.

Provenance

Source: CMS Open Payments · through program year 2025

Data current to program year 2025, from CMS's 2026 publication.

We reproduce what manufacturers reported. We do not verify, edit or correct the underlying records.

A payment record is not evidence of wrongdoing. Financial relationships between industry and medicine are legal, common and often necessary for research. Who Paid My Doc reports what was disclosed; it does not judge it.

Who Paid My Doc is independent and is not affiliated with, endorsed by or sponsored by CMS or any U.S. government agency. It is not a consumer reporting agency and this is not a consumer report; do not use it for decisions covered by the Fair Credit Reporting Act.

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