MARLEN CABALLERO DIAZ APRN-CNP
NPI 1437970126
Nurse Practitioner - Acute Care in San Antonio, TX

Active since October 24, 2024PECOS EnrolledAccepts Medicare Assignment
215 N SAN SABA STE 206, SAN ANTONIO, TX 78207(210) 615-6626(210) 477-0279 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 2, 2026, Jan 30, 2026 (2 updates tracked since 2026).

About Marlen Caballero Diaz Aprn-cnp NPPES

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

MARLEN CABALLERO DIAZ APRN-CNP (NPI 1437970126) is an individual acute care provider in San Antonio, Texas, licensed in Texas (1178704) and active in the NPI registry since October 2024. She is enrolled in Medicare PECOS, is affiliated with Methodist Dallas Medical Center, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1437970126
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameMARLEN CABALLERO DIAZCredential: APRN-CNP
Location Address215 N SAN SABA STE 206San Antonio, TX 78207-3120
Mailing AddressPo Box 650002, Dept 8286Dallas, TX 75265-0002 · (210) 212-8622
Fax(210) 477-0279
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateOctober 24, 2024
Last NPPES UpdateJune 26, 20262 updates tracked since enumeration
NPPES CertifiedJune 26, 2026
NPI 1437970126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License Licensed in TX · 1178704
215 N SAN SABA STE 206, San Antonio, TX 78207

Other Names 1

Former Name (1)Marlen Caballero Np

Secondary Practice Locations 5

Location 111212 State Highway 151 Ste 320San Antonio, TX 78251-4502 · Phone (210) 572-3317 · Fax (210) 477-0279
Location 28115 Datapoint Dr Ste 200San Antonio, TX 78229-3745 · Phone (210) 615-6626 · Fax (210) 477-0279
Location 31441 N Beckley AveDallas, TX 75203-1201 · Phone (214) 947-5000 · Fax (214) 947-5040
Location 4701 Secretary DrArlington, TX 76015-1623 · Phone (817) 617-2040 · Fax (817) 617-2055
Location 5559 E Ovilla RdRed Oak, TX 75154-3505 · Phone (214) 286-6565 · Fax (817) 533-6015

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

Marlen Caballero Diaz Aprn-cnp 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 ID7416138524
PECOS Enrollment IDI20241120003568
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.

Hospital Affiliations CMS Care Compare

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

Methodist Dallas Medical Center

Acute Care Hospitals · Dallas, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number450051
Location1441 North Beckley AvenueDallas, TX 75203 · Dallas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78207 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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 4

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

Physician Assistant
215 N SAN SABA STE 206
SAN ANTONIO, TX 78207
Internal Medicine (Cardiovascular Disease)
215 N SAN SABA STE 206
SAN ANTONIO, TX 78207
Surgery
215 N SAN SABA STE 206
SAN ANTONIO, TX 78207
Surgery (Vascular Surgery)
215 N SAN SABA STE 206
SAN ANTONIO, TX 78207

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 Marlen Diaz's NPI number?

The NPI number for Marlen Diaz is 1437970126. It was assigned to this individual provider in the NPPES registry on October 24, 2024. The provider is also known as Marlen Caballero Np.

Where is Marlen Diaz located?

Marlen Diaz practices at 215 N San Saba Ste 206, San Antonio, TX 78207. The listed phone number is (210) 615-6626.

What is Marlen Diaz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Marlen Diaz enrolled in Medicare?

Yes. Marlen Diaz 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 Marlen Diaz accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Marlen Diaz 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 Marlen Diaz affiliated with any hospitals?

According to CMS data, Marlen Diaz is affiliated with Methodist Dallas Medical Center.

When was this NPI record last updated?

The NPPES record for Marlen Diaz was last updated on June 26, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.