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PROVIDER PROFILE · NPI 1023384963

Sergey IstominCRNP, PMHNP-BC

PRACTICECORNERSTONE MONTGOMERY, INC.See all providers at this practice →
Nurse PractitionerBethesda, MDI
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.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
1,116
Beneficiaries
—
Total drug cost
$319K
Distinct drugs
28
Brand share
25.1%
Top prescribed drugs
Clozapine118 claims
Olanzapine77 claims
Quetiapine Fumarate65 claims
Divalproex Sodium53 claims
Gabapentin49 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
250
Unique beneficiaries
—
Total services
409
Distinct HCPCS
7
Medicare payment
$24K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 4,258 Nurse Practitioner providers in MD — above median (cohort median 389).
REFERRAL NETWORK

Where Sergey Istomin'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). 7 inbound referrers · 13 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Quest Diagnostics Incorporated Md
Clinical Laboratory · Baltimore, MD
2979
Frances Claytor
Psychiatry & Neurology · Bethesda, MD
2082
Simona Pick Both
Psychiatry · Alexandria, VA
1455
RAO, SWAROOP1341
Ijaz Khan
Psychiatry · Bethesda, MD
1243
SUBURBAN HOSPITAL, INC.1119
MUNSON, GEORGIA1131
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Laboratory Corporation Of America Holdings
Clinical Laboratory · Burlington, NC
44135
Quest Diagnostics Incorporated Md
Clinical Laboratory · Baltimore, MD
3695
Marium Parveen
Psychiatry & Neurology · Gaithersburg, MD
3591
Frances Claytor
Psychiatry & Neurology · Bethesda, MD
2390
Aldrin Ceballos
Licensed Clinical Social Worker · Gaithersburg, MD
19134
WEISS, PAULA18108
RAO, SWAROOP1754
SUBURBAN HOSPITAL, INC.1428
Andie Lozouski
Licensed Clinical Social Worker · Germantown, MD
1490
GOLDES, LARRY1354
Montgomery County Maryland Government
Ambulance Service Provider · Gaithersburg, MD
1221
ADVENTIST HEALTHCARE, INC.1122
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.