WILLIAM M. LEWIS DO
NPI 1265401350
Internal Medicine in Austin, TX

Active since March 14, 2006PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
12221 N MOPAC EXPY, AUSTIN, TX 78758(512) 901-4009(512) 901-3909 Get Directions Write a Review

NPPES record last updated: February 1, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William M. Lewis Do NPPES

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

WILLIAM M. LEWIS DO (NPI 1265401350) is an individual internal medicine provider in Austin, Texas, licensed in Texas (L8414) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Chi St Joseph Health Regional Hospital, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2001).

NPPES Registry Identity

NPI1265401350
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM M. LEWISCredential: DO
Location Address12221 N MOPAC EXPYAustin, TX 78758-2401
Mailing Address12221 N Mopac ExpyAustin, TX 78758-2401 · (512) 901-4009 · Fax (512) 901-3909
Fax(512) 901-3909
Sole ProprietorNo
Medical School CMSNew York College Of Osteo Medicine Of New York Institute Of TechnologyGraduated 2001
Enumeration DateMarch 14, 2006
Last NPPES UpdateFebruary 1, 2022
NPI 1265401350 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in TX · L8414
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
12221 N MOPAC EXPY, Austin, TX 78758

Other Identifiers 1

Medicaid165617501TX

Accepted 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

William M. Lewis Do 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 ID3870564354
PECOS Enrollment IDI20040805001570
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 32

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.
381 services284 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.
284 services216 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
240 services240 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
202 services181 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
185 services170 patients
Blood test, lipids (cholesterol and triglycerides) 80061
A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.
140 services136 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Chi St Joseph Health Regional Hospital

Acute Care Hospitals · Bryan, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450011
Location2801 Franciscan DrBryan, TX 77802 · Brazos County
Emergency services Birthing friendly

St David's Medical Center

Acute Care Hospitals · Austin, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450431
Location919 E 32nd StAustin, TX 78705 · Travis County
Emergency services Birthing friendly

Round Rock Medical Center

Acute Care Hospitals · Round Rock, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450718
Location2400 Round Rock AveRound Rock, TX 78681 · Williamson County
Emergency services Birthing friendly

North Austin Medical Center

Acute Care Hospitals · Austin, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450809
Location12221 Mopac Expressway NorthAustin, TX 78758 · Travis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78758 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
$131.95 typical visit price
range $57.88 – $174.00
Typical copayment $32.98 (range $14.47 – $43.50)
Most-billed visit code 99204
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
87%3,278 patients4/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
76%524 patients3/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
81%1,444 patients4/55-star benchmark: 99%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
52%1,444 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
2%14,444 patients1/55-star benchmark: 59%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
5 suppliers12 claims12 services$40.16 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
7 suppliers12 claims72 services$1.61 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
3 suppliers11 claims11 services$51.71 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers16 claims17 services$3.46 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers22 claims22 services$63.71 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier18 claims18 services$30.59 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

Pathology (Anatomic Pathology & Clinical Pathology)
12221 N MOPAC EXPY
AUSTIN, TX 78758
Speech-Language Pathologist
12221 N MOPAC EXPY
AUSTIN, TX 78758
Occupational Therapist (Physical Rehabilitation)
12221 N MOPAC EXPY
AUSTIN, TX 78758
Nurse Anesthetist, Certified Registered
12221 N MOPAC EXPY
AUSTIN, TX 78758
Emergency Medicine
12221 N MOPAC EXPY
AUSTIN, TX 78758
Internal Medicine (Interventional Cardiology)
12221 N MOPAC EXPY
AUSTIN, TX 78758
Psychiatry & Neurology (Neurology)
12221 N MOPAC EXPY
AUSTIN, TX 78758
Obstetrics & Gynecology
12221 N MOPAC EXPY
AUSTIN, TX 78758

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 William Lewis's NPI number?

The NPI number for William Lewis is 1265401350. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is William Lewis located?

William Lewis practices at 12221 N Mopac Expy, Austin, TX 78758. The listed phone number is (512) 901-4009.

What is William Lewis's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Lewis enrolled in Medicare?

Yes. William Lewis 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 William Lewis accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 5 other insurers list William Lewis 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.

Is William Lewis affiliated with any hospitals?

According to CMS data, William Lewis is affiliated with Chi St Joseph Health Regional Hospital, St David's Medical Center, Round Rock Medical Center and North Austin Medical Center.

When was this NPI record last updated?

The NPPES record for William Lewis was last updated on February 1, 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.