Lillian E Williams, PA-C
Physician Assistant · Mcallen, TX
At a glance
2101 S Cynthia St, Mcallen, TX 78503
NPPES record updated Jun 26, 2020. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2101 S Cynthia StMcallen, TX 78503
Additional reported practice locations
2601 Cornerstone BlvdEdinburg, TX 785398479
Phone: 9566641440
Fax: 9566641450 510 Victoria Ln Ste 5
Harlingen, TX 785503231
Phone: 9564284221
Fax: 9564215709
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2017
- CMS specialties
- Physician Assistant
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $1,642.76 |
| Travel and lodging | $455.13 |
| Education | $56.01 |
Reporting companies
| Company | Amount |
|---|---|
| MEDTRONIC, INC. | $1,017.37 |
| OPTINOSE US, INC. | $427.03 |
| INSPIRE MEDICAL SYSTEMS, INC. | $209.28 |
| PHADIA US INC. | $127.91 |
| SOBI, INC | $123.32 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $94.84 |
| SMITH+NEPHEW, INC. | $90.61 |
| GLAXOSMITHKLINE, LLC. | $38.43 |
| Other reporting companies | $25.11 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Physician Assistant
- Taxonomy code
- 363A00000X
- Enumeration date
- Jul 23, 2007
- Record updated
- Jun 26, 2020
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- LILLIAN ELAINE EMERSON
- Reported credentials
- PA-C
Reported taxonomies and licenses
363A00000X · Primary
License reported: 1077607 TX
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2101 S Cynthia StMcallen, TX 78503
- Phone
- (956) 687-7896
- Fax
- (956) 687-2297
Mailing address
2101 S CYNTHIA STMCALLEN, TX 785031294
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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