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MS. MARY ELIZABETH ANDRES FNP
NPI 1902106966
Nurse Practitioner - Family in San Marcos, TX

Active since October 25, 2010PECOS Enrolled
1509 N INTERSTATE 35, SAN MARCOS, TX 78666(512) 648-6188 Get Directions Write a Review

NPPES record last updated: October 20, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 20, 2022, Oct 14, 2019, Jul 23, 2019 and 1 more (4 updates tracked since 2016).

About Ms. Mary Elizabeth Andres Fnp NPPES

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

MS. MARY ELIZABETH ANDRES FNP (NPI 1902106966) is an individual family provider in San Marcos, Texas, licensed in Texas (533113) and active in the NPI registry since October 2010. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1902106966
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. MARY ELIZABETH ANDRESCredential: FNP
Location Address1509 N INTERSTATE 35San Marcos, TX 78666-7220
Mailing Address1020 E Leona RdUvalde, TX 78801-4804 · (830) 278-4588 · Fax (830) 278-4895
Phone(512) 648-6188
Sole ProprietorYes
Enumeration DateOctober 25, 2010
Last NPPES UpdateOctober 20, 20224 updates tracked since enumeration
NPPES CertifiedOctober 20, 2022
✔ NPI 1902106966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in TX · 533113
1509 N INTERSTATE 35, San Marcos, TX 78666
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1836 Sunnyvale PlUvalde, TX 78801-4078 · Phone (830) 278-1158
Location 21020 E Leona RdUvalde, TX 78801-4804 · Phone (830) 278-4588

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Mary Elizabeth Andres Fnp 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

7

Medicare enrollment records show Mary Andres reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Victoria Emergency Partners LLC
39 mi
Emergency Medicine
1110 N SARAH DEWITT DR
Gonzales, TX 78629
  • Reassigned Medicare billing, Texas enrollment
  • 430 clinicians in this Medicare group
NPI 1164770996 (830) 672-7581
Alsatian Care Enterprises, LLC
70 mi
Emergency Medicine
1501 HOUSTON ST
Castroville, TX 78009
  • Reassigned Medicare billing, Texas enrollment
  • 11 clinicians in this Medicare group
NPI 1265674352 (830) 538-3550
Victoria Emergency Associates LLC
93 mi
Emergency Medicine
506 E SAN ANTONIO ST
Victoria, TX 77901
  • Reassigned Medicare billing, Texas enrollment
  • 153 clinicians in this Medicare group
NPI 1407917164 (361) 575-7441
Premier Physicians-Ii, P.A.
118 mi
Urgent Care
9110 JORDAN LN STE 100
Woodway, TX 76712
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Premier Physicians - Ii PA
  • 92 clinicians in this Medicare group
NPI 1801204656 (254) 855-6318
South Texas Hospitalist Associates LLC
121 mi
Hospitalist
1025 GARNER FIELD RD
Uvalde, TX 78801
  • Reassigned Medicare billing, Texas enrollment
  • 48 clinicians in this Medicare group
NPI 1790045664 (830) 278-6251
Maverick Emergency Medicine Associates PA
174 mi
Emergency Medicine
3333 N. FOSTER MALDONADO BLVD
Eagle Pass, TX 78852
  • Reassigned Medicare billing, Texas enrollment
  • 63 clinicians in this Medicare group
NPI 1306806781 (830) 773-5321
Legacy Urgent Care, PA
233 mi
Urgent Care
9205 LEGACY DR
Frisco, TX 75033
  • Reassigned Medicare billing, Texas enrollment
  • 279 clinicians in this Medicare group
NPI 1568622272 (972) 668-6020

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

Areas of Expertise CMS Part B claims 3

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.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
118 services110 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
12 services12 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78666 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 3

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

MR. MANUEL RENE GALAN NURSE PRACTITIONER
Nurse Practitioner (Family)
1509 N INTERSTATE 35
SAN MARCOS, TX 78666
Hays County (512) 648-6188
MRS. ELIZABETH DANIELLE BENAVIDES FNP-C
Nurse Practitioner (Family)
1509 N INTERSTATE 35
SAN MARCOS, TX 78666
Hays County (361) 960-3818
PREMIER ER PLUS, SAN MARCOS, LLC
Clinic/Center (Emergency Care)
1509 N INTERSTATE 35
SAN MARCOS, TX 78666
Hays County (512) 648-6188

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 Mary Andres's NPI number?

The NPI number for Mary Andres is 1902106966. It was assigned to this individual provider in the NPPES registry on October 25, 2010.

Where is Mary Andres located?

Mary Andres practices at 1509 N Interstate 35, San Marcos, TX 78666. The listed phone number is (512) 648-6188.

What is Mary Andres's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Mary Andres enrolled in Medicare?

Yes. Mary Andres is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mary Andres's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Andres reassigns Medicare benefits to 7 organizations: Victoria Emergency Partners LLC (Gonzales, TX), Alsatian Care Enterprises, LLC (Castroville, TX), Victoria Emergency Associates LLC (Victoria, TX), Premier Physicians-Ii, P.A. (Woodway, TX), South Texas Hospitalist Associates LLC (Uvalde, TX) and 2 more organizations, listed in the Medicare section above. 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 Mary Andres's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Andres accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and Sendero Health Plans, Local Nonprofit list Mary Andres 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 Mary Andres was last updated on October 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.