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PROVIDER PROFILE · NPI 1265611537

Gertrude OsterAPRN

Nurse PractitionerTucson, AZI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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REFERRAL NETWORK

Where Gertrude Oster'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). 10 inbound referrers · 18 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
SPECTRA LABORATORIES INC3132
Mashood Qadri
Nephrology · Casa Grande, AZ
2038
RENAL CARE GROUP ARIZONA, LLC1928
RENAL CARE GROUP ARIZONA, LLC1824
RENAL DIMENSIONS, LLC1520
Raul Gatchalian
Nephrology · Mesa, AZ
1520
NPI 13169924071518
DIALYSIS NEWCO LLC1433
Maninder Chatha
Nephrology · Mesa, AZ
1332
BANNER BAYWOOD MEDICAL CENTER1214
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
SPECTRA LABORATORIES INC3947
Sanjay Lamba
Nephrology · Mesa, AZ
3774
RENAL CARE GROUP ARIZONA, LLC2238
Maninder Chatha
Nephrology · Mesa, AZ
1953
BANNER BAYWOOD MEDICAL CENTER1823
COBRE VALLEY REGIONAL MEDICAL CENTER1734
Vikas Kalra
Nephrology · Scottsdale, AZ
1727
Rajesh Kumar
Nephrology · Mesa, AZ
1570
BANNER DESERT MEDICAL CENTER1522
Mashood Qadri
Nephrology · Casa Grande, AZ
1444
Sonora Quest Laboratories Llc
Clinical Laboratory · Phoenix, AZ
1317
RENAL DIMENSIONS, LLC1327
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
67
Unique beneficiaries
—
Total services
111
Distinct HCPCS
2
Medicare payment
$23K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 4,787 Nurse Practitioner providers in AZ — below median (cohort median 272).
PRESCRIBING · PART D · 2024
Total Rx claims
105
Beneficiaries
—
Total drug cost
$5K
Distinct drugs
7
Brand share
18.1%
Top prescribed drugs
Amlodipine Besylate22 claims
Lidocaine/Prilocaine19 claims
Sevelamer Carbonate16 claims
Calcium Acetate13 claims
Hydralazine Hcl12 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.