MARIANA MARRERO CASTILLO M.D.
NPI 1366894859
Internal Medicine in Shreveport, LA

Active since July 07, 2016PECOS EnrolledAccepts Medicare Assignment
1541 KINGS HWY, SHREVEPORT, LA 71103(318) 626-0000(318) 629-4833 Get Directions Write a Review

NPPES record last updated: December 28, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 28, 2022, Apr 15, 2021 (2 updates tracked since 2021).

About Mariana Marrero Castillo M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIANA MARRERO CASTILLO M.D. (NPI 1366894859) is an individual internal medicine provider in Shreveport, Louisiana, licensed in Louisiana (328295) and active in the NPI registry since July 2016. She is enrolled in Medicare PECOS, is affiliated with Ochsner Lsu Health Shreveport, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1366894859
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARIANA MARRERO CASTILLOCredential: M.D.
Location Address1541 KINGS HWYShreveport, LA 71103-4228
Mailing Address1512 W Kirby PlShreveport, LA 71103-3822 · (318) 626-0177 · Fax (318) 629-4833
Fax(318) 629-4833
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateJuly 7, 2016
Last NPPES UpdateDecember 28, 20222 updates tracked since enumeration
NPPES CertifiedDecember 28, 2022
NPI 1366894859 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in LA · 328295
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1541 KINGS HWY, Shreveport, LA 71103

Other Identifiers 1

Medicaid036151524IL

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mariana Marrero Castillo M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7810274750
PECOS Enrollment IDI20211129001324
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
179 services162 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
17 services17 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
16 services15 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
13 services13 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ochsner Lsu Health Shreveport

Acute Care Hospitals · Shreveport, LA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190098
Location1541 Kings HighwayShreveport, LA 71103 · Caddo County
Emergency services Birthing friendly

Ochsner Lsu Health Shreveport-St Mary Medical Cent

Acute Care Hospitals · Shreveport, LA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190317
Location911 Margaret PlaceShreveport, LA 71101 · Caddo County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 71103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$124.60 typical visit price
range $53.43 – $164.73
Typical copayment $31.15 (range $13.35 – $41.18)
Most-billed visit code 99204
Established Patient
$95.09 typical visit price
range $16.64 – $133.62
Typical copayment $23.77 (range $4.16 – $33.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Cardiovascular Disease)
1541 KINGS HWY
SHREVEPORT, LA 71103
Pediatrics
1541 KINGS HWY
SHREVEPORT, LA 71103
Pediatrics (Pediatric Pulmonology)
1541 KINGS HWY
SHREVEPORT, LA 71103
Anesthesiology
1541 KINGS HWY
SHREVEPORT, LA 71103
Physician Assistant (Medical)
1541 KINGS HWY
SHREVEPORT, LA 71103
Internal Medicine (Interventional Cardiology)
1541 KINGS HWY
SHREVEPORT, LA 71103
Radiology (Radiation Oncology)
1541 KINGS HWY
SHREVEPORT, LA 71103
Psychiatry & Neurology (Neurology)
1541 KINGS HWY
SHREVEPORT, LA 71103

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mariana Marrero Castillo's NPI number?

The NPI number for Mariana Marrero Castillo is 1366894859. It was assigned to this individual provider in the NPPES registry on July 7, 2016.

Where is Mariana Marrero Castillo located?

Mariana Marrero Castillo practices at 1541 Kings Hwy, Shreveport, LA 71103. The listed phone number is (318) 626-0000.

What is Mariana Marrero Castillo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mariana Marrero Castillo enrolled in Medicare?

Yes. Mariana Marrero Castillo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mariana Marrero Castillo accept?

Health plans from Blue Cross and Blue Shield of Louisiana and HMO Louisiana list Mariana Marrero Castillo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mariana Marrero Castillo affiliated with any hospitals?

According to CMS data, Mariana Marrero Castillo is affiliated with Ochsner Lsu Health Shreveport and Ochsner Lsu Health Shreveport-St Mary Medical Cent.

When was this NPI record last updated?

The NPPES record for Mariana Marrero Castillo was last updated on December 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.