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PROVIDER PROFILE · NPI 1407835556

Karl ChristoffersenMD

Orthopedic SurgerySanta Cruz, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
41
Beneficiaries
—
Total drug cost
$201
Distinct drugs
3
Brand share
0.0%
Top prescribed drugs
Cephalexin19 claims
Amoxicillin11 claims
Oxycodone Hcl11 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,249
Unique beneficiaries
—
Total services
6,941
Distinct HCPCS
11
Medicare payment
$192K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,921 Orthopedic Surgery providers in CA — top quintile (cohort median 1,100).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Karl Christoffersen'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). 14 inbound referrers · 26 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Jon Keller
Pathology · Palo Alto, CA
155432
Timothy Washowich
Diagnostic Radiology · Santa Cruz, CA
84152
Harrison Wang
Diagnostic Radiology · San Diego, CA
72127
Monica Harish
Diagnostic Radiology · Santa Cruz, CA
69104
HANSEN, MARGARET68121
DIGNITY HEALTH4682
Neil Sawhney
Interventional Cardiology · Santa Cruz, CA
2037
SUTTER VISITING NURSE ASSOCIATION AND HOSPICE2021
Evan Sirc
Nuclear Medicine · Santa Cruz, CA
1643
Michael Johnson
Family Practice · Scotts Valley, CA
1427
Nicole Sudduth
Internal Medicine · Santa Cruz, CA
1426
Roy Martinez
Diagnostic Radiology · Santa Cruz, CA
1325
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Jon Keller
Pathology · Palo Alto, CA
120281
MILLS-PENINSULA HEALTH SERVICES66138
John Pestaner
Diagnostic Radiology · Santa Cruz, CA
65105
GRENIER, CHARLES63155
DIGNITY HEALTH59112
SUTTER VISITING NURSE ASSOCIATION AND HOSPICE54123
Timothy Washowich
Diagnostic Radiology · Santa Cruz, CA
3461
Harrison Wang
Diagnostic Radiology · San Diego, CA
3354
HANSEN, MARGARET2941
Neil Sawhney
Interventional Cardiology · Santa Cruz, CA
2232
Ryan Brandt
Interventional Cardiology · Santa Cruz, CA
2237
Fiona Dulbecco
Cardiology · Santa Cruz, CA
1722
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.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.