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PROVIDER PROFILE · NPI 1265540264

David GreggMD

PRACTICEMUSCSee all providers at this practice →
CardiologyCharleston, SCI
CROSS-REFERENCE

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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

CCN 420004
Hospital
CCN 420020
Hospital
CCN 420067
Hospital
CCN 420080
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
1,048
Beneficiaries
—
Total drug cost
$231K
Distinct drugs
27
Brand share
16.5%
Top prescribed drugs
Losartan Potassium108 claims
Atorvastatin Calcium85 claims
Metoprolol Succinate81 claims
Amlodipine Besylate73 claims
Spironolactone72 claims
QUALITY · MIPS · 2024
Final MIPS score
79.0
Quality
62.4
Cost
72.7
Improvement activities
40.0
Promoting interop.
99.0
Payment adjustment
0.17%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$765
Payment records
5
By payment type
Travel and Lodging$706
Food and Beverage$59
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,996
Unique beneficiaries
—
Total services
2,176
Distinct HCPCS
14
Medicare payment
$80K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 243 Cardiology providers in SC — below median (cohort median 3,582).
REFERRAL NETWORK

Where David Gregg'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). 121 inbound referrers · 313 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MEDICAL UNIVERSITY HOSPITAL AUTHORITY1,5243,994
James Ravenel
Diagnostic Radiology · Charleston, SC
359589
Stephen Schabel
Diagnostic Radiology · Charleston, SC
125220
Charleston County Government
Ambulance Service Provider · North Charleston, SC
123242
Thomas Todoran
Interventional Cardiology · Pawleys Island, SC
121217
NPI 1457469306109195
Eric Powers
Interventional Cardiology · Charleston, SC
108205
NPI 1285742221105170
James Glenn
Cardiology · Charleston, SC
103165
Russell Chapin
Diagnostic Radiology · Charleston, SC
97166
Daniel Steinberg
Interventional Cardiology · Charleston, SC
77190
Michael Davis
Diagnostic Radiology · West Columbia, SC
76122
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MEDICAL UNIVERSITY HOSPITAL AUTHORITY8872,449
Pal Suranyi
Diagnostic Radiology · Greenville, SC
260505
James Ravenel
Diagnostic Radiology · Charleston, SC
192367
Uwe Schoepf
Diagnostic Radiology · Charleston, SC
190428
USHER, BRUCE182315
Michael Gold
Clinical Cardiac Electrophysiology · Charleston, SC
180336
John Wharton
Clinical Cardiac Electrophysiology · Charleston, SC
158426
NPI 1457469306149278
Charleston County Government
Ambulance Service Provider · North Charleston, SC
144260
NPI 1285742221134224
Philip Costello
Diagnostic Radiology · Charleston, SC
128222
Eric Powers
Interventional Cardiology · Charleston, SC
125289
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.