DR. ALEXANDRA N WILLAUER MD
NPI 1386271666
Hospitalist in Boston, MA

Active since March 25, 2020PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: July 10, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 10, 2025, Jun 20, 2023, Feb 24, 2023 and 1 more (4 updates tracked since 2020).

About Dr. Alexandra N Willauer Md NPPES

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

DR. ALEXANDRA N WILLAUER MD (NPI 1386271666) is an individual hospitalist provider in Boston, Massachusetts, licensed in Massachusetts (1024564) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Texas Tech University Health Science Center School Of Medicine (2020).

NPPES Registry Identity

NPI1386271666
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameDR. ALEXANDRA N WILLAUERCredential: MD
Location Address55 FRUIT STBoston, MA 02114-2696
Mailing Address55 Fruit StBoston, MA 02114-2696 · (617) 726-2426
Sole ProprietorNo
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2020
Enumeration DateMarch 25, 2020
Last NPPES UpdateJuly 10, 20254 updates tracked since enumeration
NPPES CertifiedJuly 10, 2025
NPI 1386271666 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Licenses Licensed in MA · 1024564 Licensed in OH · 35.147077
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 35.147077 (OH)
55 FRUIT ST, Boston, MA 02114

Secondary Practice Locations 3

Location 110500 Montgomery RdMontgomery, OH 45242-4402 · Phone (513) 865-2246 · Fax (513) 865-5552
Location 2375 Dixmyth AveCincinnati, OH 45220-2475 · Phone (513) 865-2246 · Fax (513) 865-5552
Location 33130 Highland AveCincinnati, OH 45219-2399 · Phone (513) 584-4503 · Fax (513) 584-0462

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

Dr. Alexandra N Willauer Md 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 ID9739593369
PECOS Enrollment IDI20250910004580
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

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)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114

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 Alexandra Willauer's NPI number?

The NPI number for Alexandra Willauer is 1386271666. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Alexandra Willauer located?

Alexandra Willauer practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2426.

What is Alexandra Willauer's specialty?

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

Is Alexandra Willauer enrolled in Medicare?

Yes. Alexandra Willauer 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 Alexandra Willauer accept?

Health plans from CareSource list Alexandra Willauer 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 Alexandra Willauer was last updated on July 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.