DR. ALEXANDER M. VILLAREAL M.D.
NPI 1609094457
Internal Medicine - Sleep Medicine in La Crosse, WI

Q: What is Alexander Villareal's NPI number?

The NPI number for Alexander Villareal is 1609094457. It was assigned to this individual provider in the NPPES registry on April 24, 2007.

Q: What is Alexander Villareal's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Active since April 24, 2007PECOS EnrolledAccepts Medicare Assignment

1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: April 29, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Alexander M. Villareal M.d. NPPES

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

DR. ALEXANDER M. VILLAREAL M.D. (NPI 1609094457) is an individual sleep medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (57998) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with St Elizabeth Medical Center, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1609094457

Entity TypeIndividualMale

Primary Taxonomy207RS0012X

Provider Legal NameDR. ALEXANDER M. VILLAREALCredential: M.D.

Location Address1836 SOUTH AVELa Crosse, WI 54601-5429

Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300

Phone(608) 782-7300

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateApril 24, 2007

Last NPPES UpdateApril 29, 2016

✔ NPI 1609094457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0012X

Licenses✔ Licensed in WI · 57998✔ Licensed in PA · MD431468

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal MedicineTaxonomy 207R00000X · License MD431468 (PA)

1836 SOUTH AVE, La Crosse, WI 54601

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) 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

Dr. Alexander M. Villareal M.d. 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 ID1658462445

PECOS Enrollment IDI20130123000568

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 9

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.

290 services278 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

128 services128 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.

86 services70 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.

76 services76 patients

Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 99421

This service involves a week-long digital assessment of your health status. It's conducted online by your healthcare provider, focusing on managing your existing health condition. The process takes 5-10 minutes of your time daily, ensuring optimal health management.

58 services58 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

38 services38 patients

Hospital Affiliations CMS Care Compare 5

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

St Elizabeth Medical Center

Critical Access Hospitals · Wabasha, MN

OwnershipProprietary

CMS Certification Number241335

Location1200 Grant Blvd WWabasha, MN 55981 · Wabasha County

Emergency services

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520087

Location1910 South AveLa Crosse, WI 54601 · La Crosse County

Emergency services Birthing friendly

Gundersen Boscobel Area Hospital And Clinics

Critical Access Hospitals · Boscobel, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521344

Location205 Parker StBoscobel, WI 53805 · Grant County

Emergency services

Vernon Memorial Hospital

Critical Access Hospitals · Viroqua, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number521348

Location507 South Main StViroqua, WI 54665 · Vernon County

Emergency services

Reedsburg Area Medical Center

Critical Access Hospitals · Reedsburg, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number521351

Location2000 N Dewey AveReedsburg, WI 53959 · Sauk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54601 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

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

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.

Referred Medical Equipment & Supplies CMS DME claims 20

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

Tubing with integrated heating element for use with positive airway pressure device A4604