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PROVIDER PROFILE · NPI 1235333808

Jonathan GreifenkampMD

CardiologyLongview, TXI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PricingContactPrivacyTerms
QUALITY · MIPS · 2024
Final MIPS score
89.5
Quality
79.1
Cost
0.0
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.61%
APM Entity
PRESCRIBING · PART D · 2024
Total Rx claims
4,716
Beneficiaries
—
Total drug cost
$796K
Distinct drugs
42
Brand share
37.2%
Top prescribed drugs
Clopidogrel Bisulfate692 claims
Atorvastatin Calcium373 claims
Apixaban342 claims
Carvedilol291 claims
Ezetimibe237 claims
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

CCN 450032
Hospital
CCN 450080
Hospital
CCN 450210
Hospital
CCN 450702
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
3,949
Unique beneficiaries
—
Total services
5,366
Distinct HCPCS
43
Medicare payment
$499K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,379 Cardiology providers in TX — top quintile (cohort median 2,215).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$3K
Payment records
156
By payment type
Food and Beverage$3K
REFERRAL NETWORK

Where Jonathan Greifenkamp'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). 94 inbound referrers · 207 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Samir Germanwala
Cardiology · Longview, TX
3541,244
Timothy Graham
Diagnostic Radiology · Longview, TX
265553
Charles Duvall
Diagnostic Radiology · Longview, TX
256553
ERWIN, DAVID183353
Gene Kelly
Emergency Medicine · Longview, TX
181371
ARCHER, TIMOTHY165417
Timothy Tobin
Internal Medicine · Longview, TX
146335
City Of Longview
Ambulance Service Provider · Longview, TX
145246
Rajeev Singh
Cardiology · Longview, TX
144374
Jorge Massare-Rodriguez
Clinical Cardiac Electrophysiology · Longview, TX
142507
Scott Bryk
Diagnostic Radiology · Longview, TX
131325
Anita Scribner
Infectious Disease · Longview, TX
111277
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
LONGVIEW MEDICAL CENTER LP9052,459
ERWIN, DAVID360783
Robert Maxey
Diagnostic Radiology · Longview, TX
314808
Samir Germanwala
Cardiology · Longview, TX
278813
THE GOOD SHEPHERD HOSPITAL, INC.264638
Scott Bryk
Diagnostic Radiology · Longview, TX
226667
Timothy Graham
Diagnostic Radiology · Longview, TX
200471
James Lowe
Diagnostic Radiology · Longview, TX
195543
Melissa Sutton
Nurse Practitioner · Longview, TX
187556
Charles Duvall
Diagnostic Radiology · Longview, TX
185536
Ronald Scott
Cardiology · Longview, TX
148361
Rajeev Singh
Cardiology · Longview, TX
132352
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.