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LAILA MOSSA-BASHA DO
NPI 1669978375
Internal Medicine - Infectious Disease in Wauwatosa, WI

Active since April 02, 2018PECOS EnrolledAccepts Medicare Assignment
9230 W MOUNT VERNON AVE, WAUWATOSA, WI 53226(317) 362-7200 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 6, 2026, Sep 18, 2024 (2 updates tracked since 2024).

About Laila Mossa-basha Do NPPES

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

LAILA MOSSA-BASHA DO (NPI 1669978375) is an individual infectious disease provider in Wauwatosa, Wisconsin, licensed in Wisconsin (77248-21) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Community Memorial Hospital, and is a graduate of Marian University College Of Osteopathic Medicine (2018).

NPPES Registry Identity

NPI1669978375
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameLAILA MOSSA-BASHACredential: DO
Location Address9230 W MOUNT VERNON AVEWauwatosa, WI 53226-4409
Mailing Address9230 W Mount Vernon AveWauwatosa, WI 53226-4409
Phone(317) 362-7200
Sole ProprietorNo
Medical School CMSMarian University College Of Osteopathic MedicineGraduated 2018
Enumeration DateApril 2, 2018
Last NPPES UpdateJanuary 6, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
✔ NPI 1669978375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in WI · 77248-21
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
9230 W MOUNT VERNON AVE, Wauwatosa, WI 53226
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Laila Mossa-basha 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 ID4688921943
PECOS Enrollment IDI20240827001755
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Laila Mossa-basha reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Infectious Disease Specialists Of SE Wi, Sc
3.0 mi
Infectious Disease
150 S. SUNNY SLOPE RD, SUITE 136
Brookfield, WI 53005
  • Reassigned Medicare billing, Wisconsin enrollment
  • 6 clinicians in this Medicare group
NPI 1285684506 (262) 786-4550
Thedacare, Incorporated
85 mi
Counselor
1095 MIDWAY RD
Menasha, WI 54952
  • Reassigned Medicare billing, Wisconsin enrollment
  • 988 clinicians in this Medicare group
NPI 1306959515 (920) 720-2300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

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 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.
100 services46 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.
34 services31 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.
19 services14 patients

Hospital Affiliations CMS Care Compare 3

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

Community Memorial Hospital

Acute Care Hospitals · Menomonee Falls, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520103
LocationW180 N8085 Town Hall RdMenomonee Falls, WI 53051 · Waukesha County
Emergency services

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520136
Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County
Emergency services Birthing friendly

Froedtert Memorial Lutheran Hospital

Acute Care Hospitals · Milwaukee, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520177
Location9200 W Wisconsin AveMilwaukee, WI 53226 · Milwaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53226 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.

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 Laila Mossa-basha's NPI number?

The NPI number for Laila Mossa-basha is 1669978375. It was assigned to this individual provider in the NPPES registry on April 2, 2018.

Where is Laila Mossa-basha located?

Laila Mossa-basha practices at 9230 W Mount Vernon Ave, Wauwatosa, WI 53226. The listed phone number is (317) 362-7200.

What is Laila Mossa-basha's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Laila Mossa-basha enrolled in Medicare?

Yes. Laila Mossa-basha 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.

Which organizations bill Medicare for Laila Mossa-basha's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Laila Mossa-basha reassigns Medicare benefits to 2 organizations: Infectious Disease Specialists Of SE Wi, Sc (Brookfield, WI) and Thedacare, Incorporated (Menasha, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Laila Mossa-basha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Laila Mossa-basha accept?

Health plans from CareSource (Common Ground Healthcare) list Laila Mossa-basha 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 Laila Mossa-basha affiliated with any hospitals?

According to CMS data, Laila Mossa-basha is affiliated with Community Memorial Hospital, Ascension SE Wisconsin Hospital and Froedtert Memorial Lutheran Hospital.

When was this NPI record last updated?

The NPPES record for Laila Mossa-basha was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.