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 District of Columbia for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to District of Columbia 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. District of Columbia (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.

Justin Peng (NPI 1538328141)

Field	Value
Entity Type	Individual
Organization	Justin Peng
Address	2021 K St Nw
City	Washington
State	DC
ZIP	20006
Taxonomy	Rheumatology Physician
NPI Enumerated	June 9, 2008

Payer Source	Total Paid
Medicare	$488.2K
Medicaid	$0

Key Findings

This provider’s Medicare footprint is the sole recorded payer presence: total Medicare revenue is $488.2K and there is no Medicaid billing on file, so the practice is effectively Medicare‑dependent rather than dual‑payer. Analysts should treat Medicaid as absent when assessing payer mix and reimbursement exposure for this NPI.

Revenue is highly concentrated in a narrow set of services: the precomputed top 3 Medicare codes (J3262, J0897, 99214) account for 60.1% of the provider’s Medicare revenue. Those three codes alone each contribute large individual shares ($104.8K for J3262 and J0897, and $77.4K for 99214) which implies limited diversification across other revenue streams.

The CPT/HCPCS mix indicates a rheumatology practice that both delivers in‑office biologic injectable therapies and manages longitudinal outpatient care: J3262 (tocilizumab injection, $104.8K) and J0897 (denosumab injection, $104.8K) sit alongside a high-volume established‑patient E/M code 99214 ($77.4K). Additional biologic and infusion activity is visible through J3111 (romosozumab, $68.9K) and J1745 (infliximab, $25K), consistent with a clinic model that combines biologic administration with office‑based management.

Competitive standing across codes is mixed. The practice posts a notably strong national presence on 99214 (rank #23061 of 479517, 95th percentile; described as notably above typical national volume), indicating above‑typical office visit volume for established patients; by contrast J3262 is ranked #490 of 618 (21th percentile; typical, unremarkable volume) and J3111 is #757 of 970 (22th percentile; typical, unremarkable volume), reflecting modest participation on some biologics. J0897, however, sits at rank #2384 of 10057 (76th percentile; typical, unremarkable volume), suggesting relative strength on denosumab compared with national peers.

Ancillary diagnostics and procedural codes appear as modest but consistent complements to the core biologic/E/M mix, supporting in‑office management and osteoporosis workups. Examples include DXA imaging 77080 ($7.5K, rank #4680 of 17308, 73th percentile), CMP panel 80053 ($3.9K, rank #5028 of 26416, 81th percentile), vitamin D testing 82306 ($3.1K), and ENA antibody testing 86235 ($2.7K), indicating routine metabolic and autoimmune laboratory evaluation alongside treatment.

From an operational and reimbursement perspective, the practice relies heavily on administered biologics and a high volume of established‑patient visits: J3262 and J0897 each supply $104.8K in Medicare revenue while 99214 contributes $77.4K, together making up 60.1% of Medicare revenue. That concentration concentrates reimbursement exposure into a small set of codes and into Medicare as the sole payer on file, which is an important consideration for contracting, revenue forecasting, and any shifts in biologic utilization or payment policy.

The provider has an established enrollment history, with the NPI enumerated on 2008-06-09 (~18 years ago), signaling long tenure in the Medicare program. That longevity, combined with the high percentile performance on 99214, suggests a stable panel of established patients and sustained outpatient practice operations.

Medicare: Complete Services Breakdown

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

53 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
J3262	Injection, tocilizumab, 1 mg	20,960	$10	$104.8K
J0897	Injection, denosumab, 1 mg	5,820	$20	$104.8K
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…	740	$100	$77.4K
J3111	Injection, romosozumab-aqqg, 1 mg	8,610	$10	$68.9K
J1745	Injection, infliximab, excludes biosimilar, 10 mg	960	$30	$25K
96413	Chemotherapy is a therapeutic procedure used for the treatment of cancer via the use of chemical agents. These chemical agents (drugs) work on the cancerous cells of the body to destroy them. These…	120	$130	$15.2K
64640	Neurolysis is the destruction of nerves responsible for carrying pain information. The destruction includes the use of chemical, heat, or radiofrequency techniques.	80	$150	$11.8K
96401	The provider administers nonhormonal, antineoplastic chemotherapy drugs subcutaneously or intramuscularly to the patient.	140	$70	$9.6K
99204	The provider sees a new 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 provider…	60	$130	$7.7K
77080	The provider performs an imaging procedure, called dual–energy X–ray absorptiometry (DXA), of one or more bony areas on the trunk to determine the bone mineral density (BMD) and whether the patient…	160	$50	$7.5K

Showing 1–10 of 53

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 53 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. District of Columbia Distribution

Justin Peng — 1 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — District of Columbia

Full comparison — all codes billed, vs. state median

53 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
J3111	4	10	24,360	$10	$204.1K
J3262	1	10	20,960	$1	$98.6K
J0897	5	20	4,680	$20	$91.2K
J1745	2	10	1,010	$30	$26.1K
99214	32	1,400	90	$100	$15.3K
96401	6	10	160	$70	$14.3K
99215	421	660	50	$130	$12.3K
64640	1	10	80	$150	$11.9K
96413	7	20	60	$120	$11.4K
99213	651	1,200	50	$70	$8.5K

Showing 1–10 of 53

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Alan Matsumoto	MD	Rheumatology Physician	$2.2M	$0
Emma Diiorio	MD	Rheumatology Physician	$2.1M	$0
Grant Louie	MD	Rheumatology Physician	$2.1M	$0
David Wolfe	MD	Rheumatology Physician	$1.4M	$0
Nitasha Kumar	MD	Rheumatology Physician	$1.2M	$0
Jeffrey Potter	MD	Rheumatology Physician	$1.1M	$0
Rami Eltaraboulsi	MD	Rheumatology Physician	$1.1M	$0
Rachel Kaiser	MD	Rheumatology Physician	$1M	$0
Ashley Beall	MD	Rheumatology Physician	$1M	$0
Guada Respicio Duque	MD	Rheumatology Physician	$969.5K	$0

Nearby Providers

Other providers in the same ZIP code as Justin Peng, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Capitol View Home Healthcare Agency	DC	Respite Care	$0	$26.2M
Amazing Grace Supports Inc	DC	In Home Supportive Care Agency	$0	$20.2M
Mba Non Profit Solutions, LLC	DC	Developmentally Disabled Services Day Training Agency	$0	$3.4M
Premier Support Services Inc	DC	Case Management Agency	$0	$2.9M
Hamid Saranjam	DC	Orthodontics and Dentofacial Orthopedics Dentistry	$0	$1.8M
District Endodontics PLLC	DC	Endodontics	$0	$1.8M
Kerman Dental LLC	DC	General Practice Dentistry	$0	$1.4M
Lifetree Health, Inc	DC	Primary Care Clinic/Center	$0	$1.2M
Kaveh Zand	DC	Endodontics	$0	$1M
Limitless Possibilities, LLC.	DC	Mental Health Counselor	$0	$741.8K

Justin Peng — Billing Profile & Reimbursement Data

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Justin Peng — 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