MELISSA SUSANNE WILLIAMSON APRN
NPI 1801346564
Family Medicine in Brownsville, TX

Q: What is Melissa Williamson's NPI number?

The NPI number for Melissa Williamson is 1801346564. It was assigned to this individual provider in the NPPES registry on October 6, 2016.

Q: What is Melissa Williamson's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Active since October 06, 2016PECOS EnrolledAccepts Medicare Assignment

2114 BOCA CHICA BLVD, BROWNSVILLE, TX 78521(956) 866-8860(956) 866-8865 Get Directions Write a Review

NPPES record last updated: April 24, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Apr 24, 2026, Aug 11, 2022, Sep 18, 2017 (3 updates tracked since 2017).

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About Melissa Susanne Williamson Aprn NPPES

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

MELISSA SUSANNE WILLIAMSON APRN (NPI 1801346564) is an individual family medicine provider in Brownsville, Texas, licensed in Texas (1226353) and active in the NPI registry since October 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1801346564

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameMELISSA SUSANNE WILLIAMSONCredential: APRN

Location Address2114 BOCA CHICA BLVDBrownsville, TX 78521-2228

Mailing Address2114 Boca Chica BlvdBrownsville, TX 78521-2228 · (956) 866-8860 · Fax (956) 866-8865

Phone(956) 866-8860

Fax(956) 866-8865

Sole ProprietorYes

Medical School CMSOtherGraduated 2016

Enumeration DateOctober 6, 2016

Last NPPES UpdateApril 24, 20263 updates tracked since enumeration

NPPES CertifiedApril 24, 2026

✔ NPI 1801346564 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in TX · 1226353

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

2114 BOCA CHICA BLVD, Brownsville, TX 78521

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Other Identifiers 1

Medicaid2016034321MO

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Kansas City, Oscar Insurance Company.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

Melissa Susanne Williamson Aprn 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 ID42508467

PECOS Enrollment IDI20260310000842

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78521 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.

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 Melissa Williamson's NPI number?

The NPI number for Melissa Williamson is 1801346564. It was assigned to this individual provider in the NPPES registry on October 6, 2016.

Where is Melissa Williamson located?

Melissa Williamson practices at 2114 Boca Chica Blvd, Brownsville, TX 78521. The listed phone number is (956) 866-8860.

What is Melissa Williamson's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Melissa Williamson enrolled in Medicare?

Yes. Melissa Williamson 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 Melissa Williamson accept?

Health plans from Blue Cross and Blue Shield of Kansas City and Oscar Insurance Company list Melissa Williamson 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 Melissa Williamson was last updated on April 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.