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 Guam for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Guam 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. Guam (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.

Maria Chela Mariano (NPI 1326035460)

Key Findings

Field	Value
Entity Type	Individual
Organization	Maria Chela Mariano
Address	330 W Marine Corps Dr
City	Dededo
State	GU
ZIP	96929
Taxonomy	Family Medicine Physician
NPI Enumerated	October 4, 2005

Payer Source	Total Paid
Medicaid	$1.8M
Medicare	$0

This provider has no Medicare billing on file and reports $1.8M in lifetime Medicaid revenue, making its Medicare footprint effectively nil and its commercial/Medicare exposure minimal; operational and contracting decisions should therefore be evaluated primarily through a Medicaid lens. The lack of Medicare claims suggests the practice either does not see Medicare-aged patients or does not bill Medicare, so payers should treat this as a Medicaid-focused primary care entity.

Revenue is highly concentrated in a small set of outpatient evaluation-and-management services: the precomputed top three Medicaid codes account for 78.6% of the provider's total Medicaid revenue, driven by 99213 (36.7%), 99214 (31.3%), and 99203 (10.6%). This concentration indicates the business is chiefly funded by routine office E/M visits rather than procedure-based or specialty services.

The code mix (dominance of 99213, 99214, and 99203) and the provider taxonomy of Family Medicine Physician point to a traditional primary care practice model that handles both established- and new-patient office visits; high volumes of 99383, 99394, and 99393 further show an active pediatric and adolescent well-visit panel. Ancillary services such as 86580 (TB skin test, 1.6K claims) and limited home glucose monitoring (82962) appear as supporting services, consistent with comprehensive outpatient primary care rather than a procedure-oriented specialty.

Competitive standing is mixed across codes: the provider is a statewide leader for new-patient low-complexity visits, with 99203 ranked #1 of 24 providers in-state at the 100th percentile (1.5K claims, $187.5K). By contrast, for common established-visit codes the provider posts typical but respectable volumes—99213 ranks #8 of 48 (85th percentile, 6.7K claims, $648K) and 99214 ranks #5 of 35 (88th percentile, 4K claims, $553.3K)—indicating strong but not dominant participation for routine established-care encounters.

Operational utilization patterns show heavy throughput of lower- to moderate-complexity outpatient visits: 99213 and 99214 together account for large shares of revenue and thousands of claims (6.7K and 4K respectively), while 99211 also reports 1.5K claims. This mix implies the practice relies on high visit volume and continuity of care rather than episodic high-reimbursement procedures, which has implications for staffing, appointment availability, and network access for Medicaid members.

Several codes are statistical outliers in state comparisons for pediatric/new-patient care: 99203 is labeled "notably above typical state volume" (100th percentile), and preventative/well-child codes 99383 and 99384 also rank #1 in-state (100th percentile for each), highlighting a particular strength in capturing new pediatric and adolescent well visits relative to peers. Payers seeking to improve pediatric access in the market should consider this provider's apparent capacity and referral value for new pediatric patients.

The provider's NPI was enumerated on 2005-10-04 (~21 years ago), indicating a long-established practice presence in DEDEDO, GU; this tenure supports the likelihood of a stable patient panel and explains sustained Medicaid revenue and high counts of established-patient visits. Longevity combined with concentrated Medicaid revenue suggests predictable outpatient volume useful for network capacity planning and contracting discussions.

Medicaid: Complete Services Breakdown

Every CPT/HCPCS code this provider has billed to Medicaid, with claims volume, average payment, and total revenue.

13 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
99213	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the…	6,680	$100	$648K
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…	4,040	$140	$553.3K
99203	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the provider…	1,510	$120	$187.5K
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…	430	$190	$80.3K
99383	The provider performs a well–patient visit for a child who is between the ages of 5 and 11 who meets the definition of new patient.	450	$140	$61.3K
99394	The provider performs an established well–patient visit for an adolescent who is between the ages of 12 and 17.	350	$130	$44.3K
99211	An established patient presents for an office or other outpatient visit that may not require the presence of a physician or other qualified healthcare professional.	1,530	$30	$41.4K
99393	The provider performs an established well–patient visit for a child who is between the ages of 5 and 11.	330	$120	$38.9K
99202	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves straightforward medical decision making, and/or the provider…	450	$80	$37.6K
99212	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a straightforward level of medical decision making,…	470	$60	$29.4K

Showing 1–10 of 13

Medicaid: Competitive Analysis & Benchmarks

How this provider's Medicaid billing volume and revenue compare to other Guam providers billing the same CPT/HCPCS codes.

Claims Volume vs. Guam Distribution

Maria Chela Mariano — 3 of 13 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Guam

Full comparison — all codes billed, vs. Guam median

13 rows

CPT/HCPCS Code	Description	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
99213	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the…	8	50	900	$80	$201.7K
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…	5	40	630	$90	$172.1K
99393	The provider performs an established well–patient visit for a child who is between the ages of 5 and 11.	3	10	130	$110	$42.8K
99394	The provider performs an established well–patient visit for an adolescent who is between the ages of 12 and 17.	2	10	60	$120	$39K
99203	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the provider…	1	20	140	$110	$35.4K
99212	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a straightforward level of medical decision making,…	5	20	120	$60	$35.1K
99211	An established patient presents for an office or other outpatient visit that may not require the presence of a physician or other qualified healthcare professional.	4	10	780	$20	$30.2K
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…	3	20	60	$140	$20.8K
99202	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves straightforward medical decision making, and/or the provider…	2	10	30	$80	$16.2K
99383	The provider performs a well–patient visit for a child who is between the ages of 5 and 11 who meets the definition of new patient.	1	10	40	$130	$14.6K

Showing 1–10 of 13

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Guam Healthcare Development Incorporated	GU	Clinic/Center	$0	$30.8M
C V Alegria Dds Inc	GU	General Practice Dentistry	$0	$11.3M
Albert Huang	GU	Dentist	$0	$5.4M
Usrc Finegayan, LLC	GU	End-Stage Renal Disease (ESRD) Treatment Clinic/Center	$0	$4.5M
Renal Centers Of Guam, LLC	GU	End-Stage Renal Disease (ESRD) Treatment Clinic/Center	$0	$4.1M
Government Of Guam Department Of Administration	GU	Federally Qualified Health Center (FQHC)	$0	$2.4M
Scott Shay	GU	Vascular & Interventional Radiology Physician	$1.2M	$0
Anthony Bekkerman	GU	Emergency Medicine Physician	$49.5K	$623.9K
Blue Ocean Medical Group LLC	GU	Family Medicine Physician	$0	$665.1K
Yolanda Carrera	GU	Pediatrics Physician	$0	$334.5K

Maria Chela Mariano — Billing Profile & Reimbursement Data

Sign up for Maria Chela Mariano — Billing Profile & Reimbursement Data policy alerts

Maria Chela Mariano — Billing Profile & Reimbursement Data

Sign up for Maria Chela Mariano — Billing Profile & Reimbursement Data policy alerts

Key Findings

Medicaid: Total Revenue Breakdown by CPT/HCPCS Code

Medicaid: Complete Services Breakdown

Medicaid: Competitive Analysis & Benchmarks

Nearby Providers

Frequently Asked Questions

References