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PROVIDER PROFILE · NPI 1174632475

Mark ChangMD

CardiologyJohnson City, TNI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

CCN 440017
Hospital
CCN 440018
Hospital
CCN 440050
Hospital
CCN 440063
Hospital
CCN 440184
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
578
Unique beneficiaries
—
Total services
649
Distinct HCPCS
11
Medicare payment
$28K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 374 Cardiology providers in TN — bottom quintile (cohort median 2,451).
PRESCRIBING · PART D · 2024
Total Rx claims
2,852
Beneficiaries
—
Total drug cost
$562K
Distinct drugs
37
Brand share
36.5%
Top prescribed drugs
Apixaban360 claims
Metoprolol Tartrate210 claims
Metoprolol Succinate204 claims
Rosuvastatin Calcium171 claims
Clopidogrel Bisulfate156 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$395
Payment records
22
By payment type
Food and Beverage$395
REFERRAL NETWORK

Where Mark Chang'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). 93 inbound referrers · 237 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
WELLMONT HEALTH SYSTEM543984
SOLSTAS LAB PARTNERS GROUP LLC3691,415
Daniel Simpson
Cardiology · Kingsport, TN
157342
MCMURRAY, JOHN136227
Sullivan County Ems
Ambulance Service Provider · Blountville, TN
132237
John Creasy
Diagnostic Radiology · Kingsport, TN
108153
Richard Kubota
Diagnostic Radiology · Kingsport, TN
82142
WELLMONT HAWKINS COUNTY MEMORIAL HOSPITAL INC73121
Gert Van Der Westhuizen
Diagnostic Radiology · Kingsport, TN
71103
CHURCH HILL EMERGENCY MEDICAL SERVICES, INC68291
Herbert Ladley
Cardiology · Kingsport, TN
65125
Robert Thurman
Diagnostic Radiology · Bristol, TN
5681
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
WELLMONT HEALTH SYSTEM1,0262,152
SOLSTAS LAB PARTNERS GROUP LLC3701,537
Kelly Cassedy
Diagnostic Radiology · Kingsport, TN
219398
JORDAN, LOUIS170559
John Berry
Cardiology · Johnson City, TN
154278
Daniel Simpson
Cardiology · Kingsport, TN
152303
Gert Van Der Westhuizen
Diagnostic Radiology · Kingsport, TN
142221
Timothy Berrigan
Diagnostic Radiology · Bristol, TN
137210
SPILLETT, ANDREW128189
Richard Kubota
Diagnostic Radiology · Kingsport, TN
128202
Marc Mayhew
Cardiology · Kingsport, TN
124246
Robert Kramer
Cardiology · Kingsport, TN
118254
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.