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PROVIDER PROFILE · NPI 1710033022

John GambrillMD

PRACTICEJOHN GAMBRILL JR.See all providers at this practice →
OphthalmologyCatonsville, MDI
CROSS-REFERENCE

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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
23
Unique beneficiaries
—
Total services
23
Distinct HCPCS
1
Medicare payment
$3K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 447 Ophthalmology providers in MD — bottom quintile (cohort median 2,862).
PRESCRIBING · PART D · 2024
Total Rx claims
345
Beneficiaries
—
Total drug cost
$32K
Distinct drugs
7
Brand share
28.1%
Top prescribed drugs
Latanoprost157 claims
Dorzolamide Hcl/Timolol Maleat71 claims
Timolol Maleate43 claims
Bimatoprost26 claims
Brimonidine Tartrate19 claims
QUALITY · MIPS · 2024
Final MIPS score
81.8
Quality
80.7
Cost
76.3
Improvement activities
40.0
Promoting interop.
79.0
Payment adjustment
0.29%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where John Gambrill'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
Quest Diagnostics Incorporated Md
Clinical Laboratory · Baltimore, MD
191282
Steven Miller
Internal Medicine · Pikesville, MD
93141
NORTHWEST HOSPITAL CENTER, INC.4168
SINAI HOSPITAL OF BALTIMORE, INC.3854
Laboratory Corporation Of America Holdings
Clinical Laboratory · Raritan, NJ
3349
Quest Diagnostics Nichols Institute, Inc.
Clinical Laboratory · Chantilly, VA
1924
Stephen Siegel
Internal Medicine · Reisterstown, MD
1636
Ronald Sher
Cardiology · Reisterstown, MD
1417
Dang Vu
Podiatry · Reisterstown, MD
1322
Miguel Sadovnik
Internal Medicine · Pikesville, MD
1319
Claudio Levin
Internal Medicine · Reisterstown, MD
1214
Craig Gold
Internal Medicine · Pikesville, MD
1217
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.