Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or Georgia for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Georgia only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. Georgia (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Margaret Wong Gribble (NPI 1477723187)

Field	Value
Entity Type	Individual
Organization	Margaret Wong Gribble
Address	3225 Cumberland Blvd Se Ste 800
City	Atlanta
State	GA
ZIP	30339
Taxonomy	Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician
NPI Enumerated	March 10, 2008

Payer Source	Total Paid
Medicare	$2M
Medicaid	$0

Key Findings

This provider’s Medicare business is the sole payer footprint on file: total Medicare revenue is $2M while Medicaid billing is listed as none, so the practice is effectively single‑payer Medicare in scale. The NPI was enumerated 2008-03-10 (~18 years ago), indicating a long-established practice presence in the Atlanta market.

Revenue for this provider is highly concentrated in three injectable drug codes: J0178 accounts for 38.6% of Medicare revenue, J2777 accounts for 32.9%, and J2778 accounts for 10.2%; the three together were precomputed to represent 81.7% of total Medicare revenue. These codes are all intravitreal biologic injections, so a small set of high-cost medications drives the majority of payments.

The code mix and descriptions (high counts for J0178, J2777, J2778 and procedure code 67028) indicate an operation focused on intravitreal injection therapy and retinal disease management. Supporting services billed include retinal imaging (92134, 92250, 92235) and procedure-level visit care, consistent with a retina/uveitis subspecialty practice that provides on‑site injection and diagnostic services.

Although medications dominate revenue, procedural and E/M services contribute meaningful ancillary revenue: 67028 and 99214 each represent 5.9% of Medicare revenue and together support the injection workflow (6728 documents the isolated intravitreal injection; 99214 documents moderate-complexity established visits). This mix suggests revenue is led by drug administration while office and procedure codes capture follow‑up and injection encounters.

On competitive standing for the top medication codes, this provider is a solid but not dominant national participant: J0178 ranks #1196 of 3204 (63rd percentile, characterized as typical), J2777 ranks #457 of 2039 (78th percentile, typical), and J2778 ranks #397 of 1208 (67th percentile, typical). In short, the provider reports meaningful volume of anti‑VEGF and related biologics relative to peers but is not among the highest‑volume national centers for these drugs.

There are notable statistical outliers in non-drug codes that indicate atypically high utilization relative to peers: 99214 ranks #5787 of 479517 (99th percentile; extreme outlier, far above typical national volume) and 92250 ranks #230 of 25087 (99th percentile; extreme outlier, far above typical national volume). These two high percentiles suggest this provider bills far more high‑complexity established visits and fundus photography than most peers, which may reflect practice patterns (frequent follow‑ups and imaging) tied to ongoing injection therapy.

Diagnostic imaging volumes are elevated but within expected patterns for a retina practice: 92134 is 1.9% of revenue and ranks #1798 of 26868 (93rd percentile, typical), and 92235 (fluorescein angiography) appears at a typical but notable rank (#304 of 2192, 86th percentile). Together these imaging codes support a workflow of frequent monitoring and documentation for retinal disease that complements the injection regimen.

For payer and network strategy, the profile flags drug spend and injection utilization as the primary cost drivers for this provider; payers should prioritize oversight of J0178/J2777/J2778 usage and the injection visit workflow. The absence of Medicaid billing (none) means contracting and utilization review can focus on Medicare lines of business and benefit design for high‑cost intravitreal biologics rather than multi‑payer variability.

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

17 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
J0178	Injection, aflibercept, 1 mg	1,100	$690	$758.4K
J2777	Injection, faricimab‑svoa, 0.1 mg	22,320	$30	$647.3K
J2778	Injection, ranibizumab, 0.1 mg	1,100	$180	$200.9K
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	1,290	$90	$116.1K
67028	The provider injects a medication into the vitreous chamber of the eye as an isolated procedure or a separate procedure unrelated to any other procedure being performed on the eye.	1,230	$90	$115.9K
92134	The provider performs computerized diagnostic imaging of the retina in the posterior segment (back part) of the eye, interprets the data, and provides a report. The service may be on one or both eyes.	1,260	$30	$37.7K
92250	Code 92250 describes the taking of fundus photographs, that is, photographs of the posterior segment of the inner aspect of the eye, to document alterations in the optic nerve head, retinal vessels,…	1,040	$30	$28K
92235	The provider uses a special dye, fluorescein that causes the blood vessels in the one or both eyes to stand out in photographic images taken with the use of multiframe timing, or serial images, taken…	200	$110	$21.6K
J9035	Injection, bevacizumab, 10 mg	280	$50	$14.9K
67210	The provider destroys a lesion of the retina using a laser beam that heats up the tissue.	20	$380	$6.8K

Showing 1–10 of 17

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 17 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Georgia Distribution

Margaret Wong Gribble — 2 of 17 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Georgia

Full comparison — all codes billed, vs. state median

17 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
J0178	30	70	970	$680	$700.6K
J2777	12	40	14,100	$30	$524.3K
J2778	15	30	1,170	$180	$286.2K
67028	23	80	720	$90	$71.9K
92014	651	850	130	$80	$19.7K
99214	152	13,640	120	$80	$17.8K
67210	6	10	20	$370	$12.5K
J9035	15	70	120	$50	$10.3K
99213	9,724	13,360	80	$60	$9.2K
92134	38	620	70	$30	$7.1K

Showing 1–10 of 17

Related Providers

Other providers that share a Tax Identification Number (TIN) with Margaret Wong Gribble, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Ryan Whitted	GA	Ophthalmology Physician	$2.5M	$0
James Frank	GA	Retina Specialist (Ophthalmology) Physician	$2.4M	$0
Eye Consultants Of Atlanta Piedmont	GA	Ophthalmologic Surgery Clinic/Center	$2.3M	$0
Matthew Camp	GA	Ophthalmology Physician	$1.2M	$0
Nikhil Anand	GA	Ophthalmology Physician	$404.1K	$0
John Roach	GA	Ophthalmology Physician	$340.7K	$0
Elliot Levine	GA	Ophthalmology Physician	$336.3K	$0
Brian Long	GA	Ophthalmology Physician	$306.9K	$0
Scott Gardner	GA	Ophthalmology Physician	$289.2K	$0
Charles Tucker	GA	Ophthalmology Physician	$276.5K	$0

Nearby Providers

Other providers in the same ZIP code as Margaret Wong Gribble, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
K&s Clinical Diagnostics Consulting Services, LLC	GA	Clinical Medical Laboratory	$621.2K	$229.3K
A Plus Pediatric Dentistry Of Atlanta	GA	Pediatric Dentistry	$0	$637.3K
Crestre Boddy	GA	Clinical Social Worker	$446.8K	$0
Charles Thompson	GA	Ophthalmology Physician	$405K	$23.8K
Christine Page	GA	Mental Health Counselor	$0	$424K
Care1 Sc, LLC	GA	Gerontology Nurse Practitioner	$0	$299.2K
David Vieth	GA	Dentist	$0	$267.2K
William Lee	GA	Cornea and External Diseases Specialist Physician	$241.9K	$0
Evan Loft	GA	Cornea and External Diseases Specialist Physician	$237.6K	$0
Ngoneh Gaye-bullard	GA	Social Worker	$206.7K	$0

Margaret Wong Gribble — Billing Profile & Reimbursement Data

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Key Findings

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References