1. Home
  2. Directory
  3. Washington
  4. Seattle
  5. Hospitalist
  6. NPI Profile

AARON KYLE VILLARREAL M.D.
NPI 1891085023
Hospitalist in Seattle, WA

Active since April 08, 2011PECOS EnrolledAccepts Medicare Assignment
1100 9TH AVE, SEATTLE, WA 98101(206) 341-0860(206) 583-2307 Get Directions Write a Review

NPPES record last updated: November 10, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Aaron Kyle Villarreal M.d. NPPES

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

AARON KYLE VILLARREAL M.D. (NPI 1891085023) is an individual hospitalist provider in Seattle, Washington, licensed in Indiana (01075998A) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and is a graduate of Indiana University School Of Medicine (2011).

NPPES Registry Identity

NPI1891085023
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameAARON KYLE VILLARREALCredential: M.D.
Location Address1100 9TH AVESeattle, WA 98101-2756
Mailing Address1100 9th AveSeattle, WA 98101-2756 · (206) 341-0860 · Fax (206) 583-2307
Phone(206) 341-0860
Fax(206) 583-2307
Sole ProprietorYes
Medical School CMSIndiana University School Of MedicineGraduated 2011
Enumeration DateApril 8, 2011
Last NPPES UpdateNovember 10, 2015
✔ NPI 1891085023 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in IN · 01075998A
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD60475578 (WA)
1100 9TH AVE, Seattle, WA 98101
Open in Google Maps ↗

Other Identifiers 4

OtherMD60475578WA · Medical License
Other000000965091IN · Anthem Provider Number
Medicare PIN815500117IN
Medicaid201324390IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.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

Aaron Kyle Villarreal 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 ID7719124932
PECOS Enrollment IDI20151020002713
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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
326 services152 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
132 services128 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
47 services34 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
31 services14 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
22 services21 patients

Hospital Affiliations CMS Care Compare 2

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

Indiana University Health

Acute Care Hospitals · Indianapolis, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150056
Location1701 N Senate BlvdIndianapolis, IN 46202 · Marion County
Emergency services Birthing friendly

Indiana University Health Arnett Hospital

Acute Care Hospitals · Lafayette, IN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150173
Location5165 Mccarty LnLafayette, IN 47905 · Tippecanoe County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98101 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
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
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

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

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
1 supplier12 claims12 services$57.21 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.

JACLYN ANN SUBKOVIAK OT
Occupational Therapist
1100 9TH AVE
SEATTLE, WA 98101
King County (206) 341-0461
MARCIE G HUME PHARM.D.
Pharmacist
1100 9TH AVE, MS C3-PO
SEATTLE, WA 98101
King County (206) 223-6877
DR. VINAY GUPTA MD
Internal Medicine (Critical Care Medicine)
1100 9TH AVE
SEATTLE, WA 98101
King County (206) 223-6980
MARY JO BUKOVIC CCP
Contractor
1100 9TH AVE
SEATTLE, WA 98101
King County (206) 223-6600
PEGAH SAFAEIAN D.O.
Physical Medicine & Rehabilitation
1100 9TH AVE
SEATTLE, WA 98101
King County (206) 223-6600
MRS. GENEVIEVE HOUDET-COTE SLP
Speech-Language Pathologist
1100 9TH AVE, MS:H4-PMR
SEATTLE, WA 98101
King County (206) 341-0461
ROBERT DALE MCCLURE MD
Surgery
1100 9TH AVE
SEATTLE, WA 98101
King County (206) 223-6600
VIRGINIA MASON MEDICAL CENTER
Internal Medicine (Gastroenterology)
1100 9TH AVE
SEATTLE, WA 98101
King County (206) 223-6600

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 Aaron Villarreal's NPI number?

The NPI number for Aaron Villarreal is 1891085023. It was assigned to this individual provider in the NPPES registry on April 8, 2011.

Where is Aaron Villarreal located?

Aaron Villarreal practices at 1100 9th Ave, Seattle, WA 98101. The listed phone number is (206) 341-0860.

What is Aaron Villarreal's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Aaron Villarreal enrolled in Medicare?

Yes. Aaron Villarreal 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 Aaron Villarreal accept?

Health plans from CareSource list Aaron Villarreal 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 Aaron Villarreal affiliated with any hospitals?

According to CMS data, Aaron Villarreal is affiliated with Indiana University Health and Indiana University Health Arnett Hospital.

When was this NPI record last updated?

The NPPES record for Aaron Villarreal was last updated on November 10, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.