What is Mario Castillo's NPI number?

Mario Castillo's National Provider Identifier (NPI) is 1992786321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mario Castillo's specialty?

Mario Castillo is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).

Where is Mario Castillo located?

Mario Castillo's practice location on file with NPPES is 1601 W 11th Pl, Big Spring, TX 79720-4114.

What is Mario Castillo's phone number?

The practice phone number listed in the NPPES registry for Mario Castillo is (281) 359-7788.

Does Mario Castillo accept Medicare?

Mario Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Mario Castillo's NPI active?

Yes — Mario Castillo's NPI (1992786321) is active in the NPPES registry as of the last update on 2024-03-06.

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Mario Castillo, MD

NPI 1992786321 · Diagnostic Radiology Physician · Big Spring, TX

Mario Castillo, MD is a Diagnostic Radiology Physician provider in Big Spring, TX (NPI 1992786321).

Provider details

NPI number: 1992786321
Entity type: Individual
Primary specialty: Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: ME58542 (FL)

Practice location

1601 W 11th Pl

Big Spring, TX 79720-4114

Phone: (281) 359-7788

Fax: (281) 359-7888

Street-level locationGet directions

More TX providers

Mailing address

1415 North Loop W Ste 240

Houston, TX 77008-1677

Specialties & taxonomies

Diagnostic Radiology PhysicianPrimary2085R0202XLicense K9033 (TX)
Allopathic & Osteopathic Physicians
Diagnostic Radiology Physician2085R0202XLicense ME58542 (FL)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(66/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
21 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
142 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
X-Ray of Chest, 1 View71045	47	$8
Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452	24	$72
Ct Scan Head Or Brain Without Contrast70450	20	$37
Screening Mammography77067	20	$34
Ct Scan of Abdomen and Pelvis Without Contrast74176	19	$78
X-Ray of Chest, 2 Views71046	12	$10

Typical Medicare-allowed amounts for these services range $8–$78 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Enumerated: 2005-11-11
Last updated: 2024-03-06
Certified: 2024-03-06

Frequently asked questions

What is Mario Castillo's NPI number?: Mario Castillo's National Provider Identifier (NPI) is 1992786321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mario Castillo's specialty?: Mario Castillo is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
Where is Mario Castillo located?: Mario Castillo's practice location on file with NPPES is 1601 W 11th Pl, Big Spring, TX 79720-4114.
What is Mario Castillo's phone number?: The practice phone number listed in the NPPES registry for Mario Castillo is (281) 359-7788.
Does Mario Castillo accept Medicare?: Mario Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Mario Castillo's NPI active?: Yes — Mario Castillo's NPI (1992786321) is active in the NPPES registry as of the last update on 2024-03-06.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)