MARIA ROACH WILLIAMS APRN, FNP-BC
NPI 1699218495
Nurse Practitioner - Family in Harlingen, TX

Active since November 28, 2016PECOS EnrolledAccepts Medicare Assignment
509 S EXPRESSWAY 83 STE B, HARLINGEN, TX 78550(956) 406-6285(956) 406-6300 Get Directions Write a Review

NPPES record last updated: April 24, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 24, 2024, Mar 27, 2020, Mar 8, 2019 and 1 more (4 updates tracked since 2019).

About Maria Roach Williams Aprn, Fnp-bc NPPES

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

MARIA ROACH WILLIAMS APRN, FNP-BC (NPI 1699218495) is an individual family provider in Harlingen, Texas, licensed in Texas (AP132493) and active in the NPI registry since November 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Harlingen, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1699218495
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARIA ROACH WILLIAMSCredential: APRN, FNP-BC
Location Address509 S EXPRESSWAY 83 STE BHarlingen, TX 78550-5903
Mailing Address509 S Expressway 83 Ste BHarlingen, TX 78550-5903 · (956) 406-6285 · Fax (956) 406-6300
Fax(956) 406-6300
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateNovember 28, 2016
Last NPPES UpdateApril 24, 20244 updates tracked since enumeration
NPPES CertifiedApril 24, 2024
NPI 1699218495 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 · AP132493
509 S EXPRESSWAY 83 STE B, Harlingen, TX 78550

Secondary Practice Location 1

Location 1615 Camelot DrHarlingen, TX 78550 · Phone (956) 440-2701 · Fax (956) 440-2700

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

Maria Roach Williams Aprn, Fnp-bc 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 ID6901143320
PECOS Enrollment IDI20190123002940
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 2

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 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.
38 services16 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
23 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78550 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.

Nurse Practitioner (Family)
509 S EXPRESSWAY 83 STE B
HARLINGEN, TX 78550
Nurse Practitioner
509 S EXPRESSWAY 83 STE B
HARLINGEN, TX 78550
Internal Medicine
509 S EXPRESSWAY 83 STE B
HARLINGEN, TX 78550

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 Maria Williams's NPI number?

The NPI number for Maria Williams is 1699218495. It was assigned to this individual provider in the NPPES registry on November 28, 2016.

Where is Maria Williams located?

Maria Williams practices at 509 S Expressway 83 Ste B, Harlingen, TX 78550. The listed phone number is (956) 406-6285.

What is Maria Williams's specialty?

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

Is Maria Williams enrolled in Medicare?

Yes. Maria Williams 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.

When was this NPI record last updated?

The NPPES record for Maria Williams was last updated on April 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.