caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1134264427

Robert MccallumMD

GastroenterologyTucson, AZI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 030006
Hospital
QUALITY · MIPS · 2024
Final MIPS score
99.8
Quality
99.5
Cost
90.5
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
1.04%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
1,576
Beneficiaries
—
Total drug cost
$343K
Distinct drugs
23
Brand share
61.9%
Top prescribed drugs
Peg3350/Sod Sulf,bicarb,cl/Kcl259 claims
Sodium, Potassium,mag Sulfates210 claims
Omeprazole194 claims
Famotidine171 claims
Peg3350/Sod Sulf,bicarb,cl/Kcl138 claims
REFERRAL NETWORK

Where Robert Mccallum's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 5 inbound referrers · 7 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Tucson Gastroenterology Institute, Llc
Ambulatory Surgical Center · Tucson, AZ
270355
ORO VALLEY HOSPITAL LLC3870
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC2378
Inform Diagnostics, Inc.
Clinical Laboratory · Coppell, TX
2326
NORTHWEST HOSPITAL LLC1321
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Inform Diagnostics, Inc.
Clinical Laboratory · Coppell, TX
173347
Tucson Gastroenterology Institute, Llc
Ambulatory Surgical Center · Tucson, AZ
146206
Sonora Quest Laboratories Llc
Clinical Laboratory · Phoenix, AZ
44116
Laboratory Corporation Of America
Clinical Laboratory · Phoenix, AZ
3457
ORO VALLEY HOSPITAL LLC2850
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC1433
NORTHWEST HOSPITAL LLC1318
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
798
Unique beneficiaries
—
Total services
809
Distinct HCPCS
11
Medicare payment
$70K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 280 Gastroenterology providers in AZ — above median (cohort median 659).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$2K
Payment records
92
By payment type
Food and Beverage$2K
Top paying entities
Food and Beverage$2K