DR. CLARISSA MYRA DELEON M.D.
NPI 1225266729
Pediatrics - Neonatal-Perinatal Medicine in San Antonio, TX

Active since June 24, 2009PECOS Enrolled
5430 FREDERICKSBURG RD, SUITE 508, SAN ANTONIO, TX 78229(210) 541-8281(210) 541-9123 Get Directions Write a Review

NPPES record last updated: December 29, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 29, 2020, Aug 23, 2016, Jun 27, 2016 (3 updates tracked since 2016).

About Dr. Clarissa Myra Deleon M.d. NPPES

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

DR. CLARISSA MYRA DELEON M.D. (NPI 1225266729) is an individual neonatal-perinatal medicine provider in San Antonio, Texas, licensed in Texas (P4154) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225266729
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameDR. CLARISSA MYRA DELEONCredential: M.D.
Location Address5430 FREDERICKSBURG RD, SUITE 508San Antonio, TX 78229-3539
Mailing Address5430 Fredericksburg Rd, Suite 508San Antonio, TX 78229-3539 · (210) 541-8281 · Fax (210) 541-9123
Fax(210) 541-9123
Sole ProprietorNo
Enumeration DateJune 24, 2009
Last NPPES UpdateDecember 29, 20203 updates tracked since enumeration
NPPES CertifiedDecember 29, 2020
✔ NPI 1225266729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in TX · P4154
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License P4154 (TX), BP10035446 (TX)
5430 FREDERICKSBURG RD, San Antonio, TX 78229

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Clarissa Myra Deleon M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

3

Medicare enrollment records show Clarissa Deleon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Neonatal-Perinatal Medicine
2400 ROUND ROCK AVE
Round Rock, TX 78681
  • Reassigned Medicare billing, Texas enrollment
  • 432 clinicians in this Medicare group
Neonatal-Perinatal Medicine
2929 WOODLAND PARK DR
Houston, TX 77082
  • Reassigned Medicare billing, Texas enrollment
  • 508 clinicians in this Medicare group
General Practice
301 UNIVERSITY BLVD
Galveston, TX 77555
  • Reassigned Medicare billing, Texas enrollment
  • 2,222 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

Ophthalmology
5430 FREDERICKSBURG RD, SUITE 100
SAN ANTONIO, TX 78229
Nurse Practitioner (Neonatal)
5430 FREDERICKSBURG RD
SAN ANTONIO, TX 78229
Hospitalist
5430 FREDERICKSBURG RD
SAN ANTONIO, TX 78229
Optometrist
5430 FREDERICKSBURG RD, STE 100
SAN ANTONIO, TX 78229
Nurse Practitioner (Neonatal)
5430 FREDERICKSBURG RD, SUITE 508
SAN ANTONIO, TX 78229
Durable Medical Equipment & Medical Supplies (Customized Equipment)
5430 FREDERICKSBURG RD, STE 100
SAN ANTONIO, TX 78229
Nurse Practitioner (Pediatrics)
5430 FREDERICKSBURG RD
SAN ANTONIO, TX 78229
Pediatrics (Neonatal-Perinatal Medicine)
5430 FREDERICKSBURG RD, SUITE 508
SAN ANTONIO, TX 78229

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 Clarissa Deleon's NPI number?

The NPI number for Clarissa Deleon is 1225266729. It was assigned to this individual provider in the NPPES registry on June 24, 2009.

Where is Clarissa Deleon located?

Clarissa Deleon practices at 5430 Fredericksburg Rd Suite 508, San Antonio, TX 78229. The listed phone number is (210) 541-8281.

What is Clarissa Deleon's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Clarissa Deleon enrolled in Medicare?

Yes. Clarissa Deleon is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Clarissa Deleon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clarissa Deleon reassigns Medicare benefits to 3 organizations: Magella Medical Associates Billing, Inc. (Round Rock, TX), Pediatrix Medical Group Of Texas Billing, Inc. (Houston, TX) and Utmb Faculty Group Practice (Galveston, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Clarissa Deleon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Clarissa Deleon 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 6 other insurers list Clarissa Deleon 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.

When was this NPI record last updated?

The NPPES record for Clarissa Deleon was last updated on December 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.