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PROVIDER PROFILE · NPI 1598798621

William RoysterM.D.

PRACTICEMEDICAL PRACTICES OF ANTIETAM LLCSee all providers at this practice →
Family PracticeHagerstown, MDI
CROSS-REFERENCE

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QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
7,638
Beneficiaries
—
Total drug cost
$693K
Distinct drugs
115
Brand share
19.1%
Top prescribed drugs
Atorvastatin Calcium559 claims
Amlodipine Besylate499 claims
Lisinopril322 claims
Levothyroxine Sodium312 claims
Omeprazole242 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$34
Payment records
1
By payment type
Food and Beverage$34
Top paying entities
Food and Beverage$34
REFERRAL NETWORK

Where William Royster'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). 15 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Mansoor Husain
Diagnostic Radiology · Hagerstown, MD
3050
Kevin Mccarthy
Diagnostic Radiology · Eden Prairie, MN
2646
Dean Notabartolo
Cardiology · Hagerstown, MD
2239
Shamim Dada
Diagnostic Radiology · Hagerstown, MD
2030
Robert Mazzei
Diagnostic Radiology · Hagerstown, MD
1927
Michelle Walker
Nurse Practitioner · Hagerstown, MD
1827
Jeffrey Jones
Cardiology · Hagerstown, MD
1438
Malgorzata Sidor
Pain Management · Chambersburg, PA
1331
Pajman Danai
Pulmonary Disease · Hagerstown, MD
1340
Tarek El-Sherif
Cardiology · Hagerstown, MD
1333
Donald Vanwie
Emergency Medicine · Baltimore, MD
1223
Judith Njomo
Hospitalist · Hagerstown, MD
1236
Refers patients to
Outbound — where patients go next
No outbound pairs above the suppression threshold.
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,839
Unique beneficiaries
—
Total services
2,360
Distinct HCPCS
19
Medicare payment
$138K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 988 Family Practice providers in MD — top quintile (cohort median 868).