DR. MARIA S. RAYAS MD
NPI 1457536328
Pediatrics - Pediatric Endocrinology in San Antonio, TX

Q: What is Maria Rayas's NPI number?

The NPI number for Maria Rayas is 1457536328. It was assigned to this individual provider in the NPPES registry on January 9, 2008.

Q: What is Maria Rayas's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Q: When was this NPI record last updated?

The NPPES record for Maria Rayas was last updated on October 12, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since January 09, 2008PECOS EnrolledAccepts Medicare Assignment

4502 MEDICAL DR, SAN ANTONIO, TX 78229(210) 358-2015 Get Directions Write a Review

NPPES record last updated: October 12, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Maria S. Rayas Md NPPES

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

DR. MARIA S. RAYAS MD (NPI 1457536328) is an individual pediatric endocrinology provider in San Antonio, Texas, licensed in Texas (N6606) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS, is affiliated with University Health System, and is a graduate of University Of Texas Medical School At San Antonio (2007).

NPPES Registry Identity

NPI1457536328

Entity TypeIndividualFemale

Primary Taxonomy2080P0205X

Provider Legal NameDR. MARIA S. RAYASCredential: MD

Location Address4502 MEDICAL DRSan Antonio, TX 78229-4402

Mailing Address7703 Floyd Curl Dr, Mc7806San Antonio, TX 78229-3900 · (210) 567-5283 · Fax (210) 567-0492

Phone(210) 358-2015

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 2007

Enumeration DateJanuary 9, 2008

Last NPPES UpdateOctober 12, 2015

✔ NPI 1457536328 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0205X

License✔ Licensed in TX · N6606

Definition

A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.

4502 MEDICAL DR, San Antonio, TX 78229

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Other Identifiers 2

Medicaid322853801TX

Medicare PIN299994YK00TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Molina Healthcare.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

Dr. Maria S. Rayas Md 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 ID143463695

PECOS Enrollment IDI20130830000547

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.

University Health System

Acute Care Hospitals · San Antonio, TX

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number450213

Location4502 Medical DrSan Antonio, TX 78229 · Bexar County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78229 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

1 supplier11 claims11 services$168.35 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

EDUARDO N. POLLONO MD

Internal Medicine (Cardiovascular Disease)