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PROVIDER PROFILE · NPI 1730157199

Michael TombergM.D.

PRACTICEVIRGINIA MASON MEDICAL CENTERSee all providers at this practice →
Family PracticeBainbridge Island, WAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
5,013
Beneficiaries
—
Total drug cost
$443K
Distinct drugs
84
Brand share
14.1%
Top prescribed drugs
Atorvastatin Calcium378 claims
Amlodipine Besylate342 claims
Losartan Potassium317 claims
Rosuvastatin Calcium267 claims
Levothyroxine Sodium220 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,910
Unique beneficiaries
—
Total services
3,040
Distinct HCPCS
19
Medicare payment
$144K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 2,681 Family Practice providers in WA — top quintile (cohort median 352).
REFERRAL NETWORK

Where Michael Tomberg'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). 13 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
David Cowan
Family Practice · Bainbridge Island, WA
65214
LEATHAM, KIM44130
Catherine Edwards
Family Practice · Bainbridge Island, WA
3192
Wayne Hwang
Interventional Cardiology · Seattle, WA
29144
Karen Morice
Physician Assistant · Bainbridge Island, WA
29153
Connie Keibler
Nurse Practitioner · Coeur D Alene, ID
2286
HOLMES, JOHN1839
Neal Conti
Diagnostic Radiology · Seattle, WA
1762
Christopher Fellows
Clinical Cardiac Electrophysiology · Seattle, WA
1669
WONG, STACEY1550
Marc Lacrampe
Diagnostic Radiology · Seattle, WA
1345
Jennifer Kohr
Diagnostic Radiology · Seattle, WA
1237
Refers patients to
Outbound — where patients go next
No outbound pairs above the suppression threshold.
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.