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PROVIDER PROFILE · NPI 1285801407

Iryna ChastainM.D.

PRACTICEUNHLP LLCSee all providers at this practice →
Internal MedicineWorcester, MAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 220001
Hospital
CCN 220176
Hospital
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
61
Beneficiaries
—
Total drug cost
$932
Distinct drugs
4
Brand share
0.0%
Top prescribed drugs
Pantoprazole Sodium20 claims
Prednisone16 claims
Cefpodoxime Proxetil14 claims
Furosemide11 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
244
Unique beneficiaries
—
Total services
532
Distinct HCPCS
3
Medicare payment
$49K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 3,978 Internal Medicine providers in MA — below median (cohort median 564).
REFERRAL NETWORK

Where Iryna Chastain'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). 27 inbound referrers · 47 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Quest Diagnostics Massachusetts Llc
Clinical Laboratory · Marlborough, MA
79659
Noreen Lasalle-Green
Diagnostic Radiology · Templeton, MA
35205
Milliam Kataoka
Diagnostic Radiology · Northampton, MA
31129
Rahul Gandhi
Internal Medicine · Worcester, MA
31119
John Mukai
Diagnostic Radiology · Templeton, MA
31162
QUEST DIAGNOSTICS MASSACHUSETTS LLC27133
Brian Midkiff
Diagnostic Radiology · Worcester, MA
27122
Peter Bagley
Pulmonary Disease · Rockport, ME
2648
Robert Harizi
Cardiology · Worcester, MA
26101
MILLER, DANIEL2326
Neeta Shah
Cardiology · Webster, MA
23135
Luigi Pacifico
Cardiology · Worcester, MA
2298
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
VHS ACQUISITION SUBSIDIARY NUMBER 7 INC215663
VITAL ENTERPRISES, INC.70452
Quest Diagnostics Massachusetts Llc
Clinical Laboratory · Marlborough, MA
68629
Claudiu Salvan
Internal Medicine · Worcester, MA
51580
Milliam Kataoka
Diagnostic Radiology · Northampton, MA
39133
UMASS MEMORIAL MEDICAL CENTER, INC.37106
Noreen Lasalle-Green
Diagnostic Radiology · Templeton, MA
32165
VNA CARE NETWORK, INC.31121
Douglas Burd
Diagnostic Radiology · Templeton, MA
30125
Paulomi Kanzaria
Diagnostic Radiology · Templeton, MA
2382
Eascare Llc
Ambulance Service Provider · Weymouth, MA
23114
QUEST DIAGNOSTICS MASSACHUSETTS LLC2283
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.