npidexNPI registry + Medicare data

ROBERT ZAJAC, MD

Infectious Disease Physician · SAN ANTONIO, TX

Individual Active NPI 1013907963

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20244504,800$1,362,838$335,210$265,002
202352060,885$19,368,307$3,962,448$3,151,147
202256030,401$10,815,092$2,494,662$1,985,398

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg2,110$49$39
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes471$113$90
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes384$74$58
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes226$165$130
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more111$112$83
96366Infusion into a vein for therapy, prevention, or diagnosis, each additional hour97$19$14
99215Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more60$165$132
G0180Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and37$51$41
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes36$122$95
96365Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less32$58$43
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes30$47$38
G0181Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow16$100$80

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Infectious Disease Physician207RI0200X✓H3973TX

Medicare eligibility

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

Other Infectious Disease Physician providers in Texas

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.