LILLIAN E WILLIAMS PA-C
NPI 1952501447
Physician Assistant in Mcallen, TX

Q: What is Lillian Williams's NPI number?

The NPI number for Lillian Williams is 1952501447. It was assigned to this individual provider in the NPPES registry on July 23, 2007. The provider is also known as Lillian Elaine Emerson.

Q: What is Lillian Williams's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Lillian Williams was last updated on June 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 July 23, 2007PECOS EnrolledAccepts Medicare Assignment

2101 S CYNTHIA ST, MCALLEN, TX 78503(956) 687-7896(956) 687-2297 Get Directions Write a Review

NPPES record last updated: June 26, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 26, 2020, Jun 14, 2019, Nov 21, 2016 and 1 more (4 updates tracked since 2016).

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About Lillian E Williams Pa-c NPPES

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

LILLIAN E WILLIAMS PA-C (NPI 1952501447) is an individual physician assistant in Mcallen, Texas, licensed in Texas (1077607) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1952501447

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameLILLIAN E WILLIAMSCredential: PA-C

Location Address2101 S CYNTHIA STMcallen, TX 78503

Mailing Address2101 S Cynthia StMcallen, TX 78503-1294 · (956) 687-7896 · Fax (956) 687-2297

Phone(956) 687-7896

Fax(956) 687-2297

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateJuly 23, 2007

Last NPPES UpdateJune 26, 20204 updates tracked since enumeration

NPPES CertifiedJune 26, 2020

✔ NPI 1952501447 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in TX · 1077607

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

2101 S CYNTHIA ST, Mcallen, TX 78503

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Other Names 1

Former Name (1)Lillian Elaine Emerson

Secondary Practice Locations 2

Location 12601 Cornerstone BlvdEdinburg, TX 78539-8479 · Phone (956) 664-1440 · Fax (956) 664-1450

Location 2510 Victoria Ln Ste 5Harlingen, TX 78550-3231 · Phone (956) 428-4221 · Fax (956) 421-5709

Other Identifiers 4

Other1952501447TX · Npi

OtherPA05337TX · License

Medicaid190946704TX

Other504737ZUQATX · Medicare Provider Number

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Lillian E Williams Pa-c 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 ID1759473622

PECOS Enrollment IDI20070823000136

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 13

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.

189 services122 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

85 services85 patients

Removal of impacted ear wax 69210

Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.

70 services58 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

42 services34 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

39 services38 patients

Test to assess middle ear function 92567

A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.

34 services33 patients

Placement of ear probe for computerized measurement of sound with interpretation and report 92587

This procedure involves placing a small probe in your ear to measure sounds. It's a painless process that helps doctors understand your hearing ability. The results will be interpreted and a report will be provided for further assessment.

27 services27 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

23 services23 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

16 services16 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

14 services13 patients

Comprehensive hearing and speech recognition test 92557

A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.

12 services12 patients

Exam of ear using a microscope 92504

An exam of the ear using a microscope allows a detailed view of the ear structures. This non-invasive procedure helps identify issues such as infections, blockages, or ear damage. It's a safe, quick, and painless way to evaluate ear health.

11 services11 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78503 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

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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Other Providers at the Same Location NPPES 10

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

JONATHAN LERMA PA

Physician Assistant

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 687-7896

CHARLES EUGENE BUTLER M.A., CCC-A

Audiologist

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 687-7896

MRS. JENNIFER TURIAN SORCE RN, MSN

Nurse Practitioner (Family)

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 867-7896

VALLEY EAR NOSE & THROAT SPECIALIST PA

Otolaryngology

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 687-7896

MS. LYDIA DIANE BROWN APRN

Nurse Practitioner

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 687-7896

RIO GRANDE VALLEY SLEEP CENTERS, INC

Physiological Laboratory

2101 S CYNTHIA ST, PLEX C
MCALLEN, TX 78503

Hidalgo County (956) 630-2844

DR. JOHN R. AUSTIN M.D., F.A.C.S.

Otolaryngology (Plastic Surgery within the Head & Neck)

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 687-7896

DR. GREGORY SPENCER ROWIN DO

Otolaryngology (Plastic Surgery within the Head & Neck)

2101 S CYNTHIA ST
MCALLEN, TX 78503

Hidalgo County (956) 687-7896

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 Lillian Williams's NPI number?

The NPI number for Lillian Williams is 1952501447. It was assigned to this individual provider in the NPPES registry on July 23, 2007. The provider is also known as Lillian Elaine Emerson.

Where is Lillian Williams located?

Lillian Williams practices at 2101 S Cynthia St, Mcallen, TX 78503. The listed phone number is (956) 687-7896.

What is Lillian Williams's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Lillian Williams enrolled in Medicare?

Yes. Lillian 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.

What insurance does Lillian Williams accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Lillian Williams 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 Lillian Williams was last updated on June 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.