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

Why is the Medicaid comparison limited to Puerto Rico 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. Puerto Rico (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.

Fernando Zalduondo (NPI 1457383259)

Key Findings

Field	Value
Entity Type	Individual
Organization	Fernando Zalduondo
Address	280 Ave Marginal Kennedy
City	Guaynabo
State	PR
ZIP	00968
Taxonomy	Diagnostic Radiology Physician
NPI Enumerated	July 6, 2006

Payer Source	Total Paid
Medicare	$125.9K
Medicaid	$0

Service mix and modality breadth: The provider’s top revenue codes are concentrated in advanced cross-sectional and vascular imaging—notably 70553, 70551, and 74178—alongside a series of abdominal/pelvic MRIs and CTs (74183, 72197, 72148, 72141, 71250) and ultrasound/vascular studies (76700, 76770, 93880). This pattern is consistent with a diagnostic radiology practice or outpatient imaging operation that performs both non-contrast and contrast-enhanced MRI/CT exams and maintains capability for real-time ultrasound and duplex vascular studies. The presence of both MRI brain codes (70553, 70551) and multi-region abdominal/pelvic codes suggests the clinic handles a mix of neuro and body imaging referrals.

Revenue concentration in Medicare: The top three Medicare codes (70553, 70551, 74178) together account for 35.4% of this provider’s total Medicare revenue, with 70553 reporting $18.4K (14.8% of total Medicare revenue), 70551 reporting $14.1K (11.3%), and 74178 reporting $11.6K (9.3%). This concentration indicates a relatively narrow set of high-value services driving over a third of Medicare revenue, which can create sensitivity to utilization shifts in those specific exam types. Analysts should treat these three codes as the primary revenue drivers when modeling short-term Medicare volume or negotiating imaging rates.

Payer mix and exposure: Lifetime Medicare revenue on file is $125.9K while Medicaid shows none on file, indicating the provider is effectively single-payer from the claims data perspective and is heavily exposed to Medicare reimbursement patterns. The absence of Medicaid billing suggests limited participation in Medicaid or that Medicaid work is billed under a different entity; either scenario compresses the provider’s payer diversification and may affect contracting leverage with commercial payers.

Competitive standing for primary codes: For the leading Medicare imaging codes the provider ranks within the middle-to-upper national range—70553 ranks #4254 of 11271 (62th percentile; typical, unremarkable volume), 70551 ranks #3616 of 13508 (73th percentile; typical, unremarkable volume), and 74178 ranks #3180 of 11397 (71th percentile; typical, unremarkable volume). These percentiles indicate the provider is a modest national participant for these exams rather than a dominant or outlier provider, delivering volumes that are within typical ranges for diagnostic radiologists. That profile suggests limited market share at the national level but adequate throughput for routine imaging lines.

Contrast utilization signal: The provider shows relatively high national standing on contrast-agent billing: A9579 is reported with 1.3K claims, $1 avg paid/claim, $1.3K revenue (1.0% of this provider's total Medicare revenue) and ranks #138 of 777 (82th percentile; typical, unremarkable volume), while Q9967 reports 12K claims with $0 avg paid/claim and $0 revenue and ranks #2210 of 11759 (81th percentile; typical, unremarkable volume). The combination of many contrast-related claims—one with nonzero reimbursement and one with $0 revenue recorded—suggests routine use of contrast materials in imaging workflows and a potential reporting or reimbursement artifact for Q9967 that merits review when reconciling supplies and pass-through billing.

Low-volume and below-peer signals on select codes: Several codes in the top-25 list sit at very low national percentiles despite appearing on this provider’s ledger, for example 74177 ranks #22452 of 23621 (4th percentile; typical, unremarkable volume), 70450 ranks #20026 of 21092 (4th percentile; typical, unremarkable volume), and 93970 ranks #19578 of 20939 (3th percentile; typical, unremarkable volume). These low-percentile placements indicate that, while the provider performs a broad set of services, certain exam types are rare relative to peers and are not primary revenue drivers. This uneven distribution is consistent with a modestly-sized imaging operation that offers many modalities but concentrates volume in a few core studies.

Tenure versus scale: The provider’s NPI was enumerated on 2006-07-06 (~20 years ago) but lifetime Medicare revenue on file is only $125.9K, which suggests either a low Medicare caseload over that tenure, recent entry into Medicare billing under this NPI, or that a substantial portion of clinical activity is billed to non-Medicare payers or another billing entity. For contract analysts and network planners, the long enumeration date combined with modest Medicare revenue argues for confirming current practice status and billing relationships before inferring local market influence.

Operational implications for contracting and network strategy: Given the concentration of Medicare revenue in a few MRI and CT codes and the lack of Medicaid activity, this provider likely represents a specialized imaging resource with limited Medicare scale ($125.9K lifetime) but adequate capability to deliver complex contrast-enhanced studies. That profile supports targeted network inclusion for specific neuro and body imaging needs while signaling modest leverage in rate negotiations; payers should verify the Q9967 reporting and contrast-supply billing details before using this provider as a primary contrast-resource partner.

Medicare: Complete Services Breakdown

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

24 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
70553	In this procedure, the provider performs a magnetic resonance imaging, or MRI, study of the brain including the brain stem. He performs this procedure without using contrast material. He then follows…	70	$260	$18.4K
70551	The provider uses magnetic resonance imaging, or MRI, to examine the brain and brain stem. The provider does not administer contrast for this exam.	90	$150	$14.1K
74178	The provider performs computed tomography of the abdomen and pelvis without contrast material in one or both body regions followed by contrast material in one or both body regions and additional…	40	$290	$11.6K
74183	The provider performs magnetic resonance imaging of the structures and organs of the abdomen, initially without control and then with additional sequences after injection of contrast.	40	$270	$10.3K
72197	In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the pelvis first without using contrast and again after injecting contrast material.	40	$280	$10K
72148	In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the lumbar spinal canal and contents without using contrast.	50	$150	$7K
72141	In this diagnostic procedure, the provider performs a magnetic resonance imaging (MRI) study of the cervical spinal canal and contents without using contrast material.	40	$160	$6K
71250	In this diagnostic procedure, the provider performs a computed tomography, or CT, examination of the thorax without using contrast material.	60	$100	$5.8K
76700	An abdominal ultrasound is a noninvasive procedure used to assess the body parts within the abdomen (i.e. liver, gallbladder, pancreas, bile ducts, spleen, and abdominal aorta). This particular code…	60	$80	$5.4K
76536	The provider performs real–time ultrasound examination of the soft tissues of the head and neck and records and saves the images for later review.	60	$80	$5.1K

Showing 1–10 of 24

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Carlos Jimenez	PR	Nuclear Medicine Physician	$236.5K	$0
Eva Cruz Jove	PR	Diagnostic Radiology Physician	$53.2K	$0
Angela Mendez De Guzman	PR	Diagnostic Radiology Physician	$10.6K	$0
Ricardo Olazabal	PR	Specialist	$7.3K	$0

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Alivia Specialty, LLC	PR	Specialty Pharmacy	$0	$189M
Medtronic Puerto Rico Operations	PR	Durable Medical Equipment & Medical Supplies	$0	$19.7M
Cuerpo De Emergencias Medicas De	PR	Land Ambulance	$108.2K	$9.4M
Ortho & Surgical Solutions, Inc	PR	Prosthetic/Orthotic Supplier	$0	$7.8M
Santa Merle	PR	Hematology & Oncology Physician	$4.5K	$2M
Bard Shannon Limited	PR	Prosthetic/Orthotic Supplier	$0	$1.2M
Guaynabo Ambulatory Surgical Group, Inc	PR	Ambulatory Surgical Clinic/Center	$275K	$53.4K
Ricardo Hernandez-castillo	PR	Pulmonary Disease Physician	$28.6K	$211.9K
Maria De Aranzazu Villamil Jarauta	PR	Endocrinology, Diabetes & Metabolism Physician	$42.3K	$151.8K
Juan Malpica-santiago	PR	Pulmonary Disease Physician	$33.2K	$148.3K

Fernando Zalduondo — Billing Profile & Reimbursement Data

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Fernando Zalduondo — 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

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
72197	2	10	20	$130	$5.4K
74183	1	10	20	$210	$5.1K
70553	1	10	20	$200	$4.5K
74178	1	20	20	$210	$4.2K
74177	19	30	20	$80	$3.7K
72148	6	40	20	$110	$3.7K
70551	1	30	20	$110	$3.2K
93970	46	50	20	$110	$3K
74176	26	60	30	$70	$2.9K
93880	67	90	20	$120	$2.8K