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PROVIDER PROFILE · NPI 1871673723

Mark SullivanM.D.

PRACTICESUTTER REGIONAL MEDICAL FOUNDATIONSee all providers at this practice →
Family PracticeFairfield, CAI
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
7,640
Beneficiaries
—
Total drug cost
$710K
Distinct drugs
125
Brand share
28.6%
Top prescribed drugs
Amlodipine Besylate458 claims
Atorvastatin Calcium442 claims
Rosuvastatin Calcium247 claims
Hydrocodone/Acetaminophen225 claims
Omeprazole206 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,380
Unique beneficiaries
—
Total services
2,334
Distinct HCPCS
13
Medicare payment
$167K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 8,228 Family Practice providers in CA — top quintile (cohort median 411).
REFERRAL NETWORK

Where Mark Sullivan'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). 20 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Aseem Rawal
Diagnostic Radiology · Walnut Creek, CA
75119
Edward Yoon
Cardiology · San Pablo, CA
70174
Keith Tao
Diagnostic Radiology · Walnut Creek, CA
65104
ANTON, STEVEN46108
Donna Hinman-Seabrooks
Ophthalmology · Fairfield, CA
4585
SUTTER VALLEY HOSPITALS2545
Robert Stein
Emergency Medicine · San Rafael, CA
2431
Lewis Weisblum
Diagnostic Radiology · Fairfield, CA
2356
Stephen Hesseltine
Diagnostic Radiology · Walnut Creek, CA
2028
Curt Osuga
Physical Therapist in Private Practice · Fairfield, CA
2074
Malalai Mojaddidi
Optometry · Fairfield, CA
1925
Yelena Krijanovski
Hematology-Oncology · Fairfield, CA
1983
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.