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 1275776536

Ana Cecilia Ortiz-GuerreroMD

PRACTICEINTERNAL MEDICINE AND NEPHROLOGY MED. GROUP INC.See all providers at this practice →
NephrologyTorrance, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

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

Hospital & Facility Affiliations (5)

CCN 052715
Dialysis facility
CCN 552832
Dialysis facility
CCN 050078
Hospital
CCN 050351
Hospital
CCN 050353
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
772
Unique beneficiaries
—
Total services
2,115
Distinct HCPCS
10
Medicare payment
$266K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 985 Nephrology providers in CA — above median (cohort median 1,482).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
4,334
Beneficiaries
—
Total drug cost
$451K
Distinct drugs
73
Brand share
19.6%
Top prescribed drugs
Amlodipine Besylate331 claims
Furosemide308 claims
Losartan Potassium275 claims
Hydralazine Hcl240 claims
Nifedipine210 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$3K
Payment records
149
By payment type
Food and Beverage$3K
REFERRAL NETWORK

Where Ana Cecilia Ortiz-Guerrero'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). 47 inbound referrers · 73 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
TORRANCE MEMORIAL MEDICAL CENTER156522
Vinh Cam
Nephrology · Torrance, CA
62212
Albert Grabb
Diagnostic Radiology · Torrance, CA
55140
Westmed Ambulance Inc
Ambulance Service Provider · Compton, CA
54122
NPI 125533553545203
BLOOM, DAVID4486
Philip Chung
Nephrology · Torrance, CA
41119
Robert Kolanz
Diagnostic Radiology · Torrance, CA
41210
Richard Krauthamer
Diagnostic Radiology · Torrance, CA
40116
Stuart Winkler
Internal Medicine · Torrance, CA
39119
Richard Sullivan
Diagnostic Radiology · Torrance, CA
3793
Unilab Corporation
Clinical Laboratory · West Hills, CA
35152
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
TORRANCE MEMORIAL MEDICAL CENTER125531
Edgar Musngi
Nephrology · Torrance, CA
86376
MULGEE DIALYSIS LLC49348
Stuart Winkler
Internal Medicine · Torrance, CA
47160
Philip Chung
Nephrology · Torrance, CA
47135
PROVIDENCE HEALTH SYSTEM SOUTHERN CALIFORNIA45129
Vinh Cam
Nephrology · Torrance, CA
43156
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
43185
BLOOM, DAVID4281
MARCUS, ROBERT39176
NPI 125533553536147
Randal Sutherland
Diagnostic Radiology · Torrance, CA
3274
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.