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REENA A GEORGE MD
NPI 1568542140
Internal Medicine - Allergy & Immunology in Thiensville, WI

Active since October 17, 2006PECOS EnrolledAccepts Medicare Assignment
136 N MAIN ST STE 201, THIENSVILLE, WI 53092(262) 242-3369(833) 599-2486 Get Directions Write a Review

NPPES record last updated: August 23, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 23, 2023, Aug 8, 2023, Nov 22, 2022 and 3 more (6 updates tracked since 2020).

About Reena A George Md NPPES

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

REENA A GEORGE MD (NPI 1568542140) is an individual allergy & immunology provider in Thiensville, Wisconsin, licensed in Wisconsin (40020) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Mercy Health System Corp, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1568542140
Entity TypeIndividualFemale
Primary Taxonomy207RA0201X
Provider Legal NameREENA A GEORGECredential: MD
Location Address136 N MAIN ST STE 201Thiensville, WI 53092-1606
Mailing AddressPo Box 210560Milwaukee, WI 53221-8010 · (414) 875-0505
Phone(262) 242-3369
Fax(833) 599-2486
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateOctober 17, 2006
Last NPPES UpdateAugust 23, 20236 updates tracked since enumeration
NPPES CertifiedAugust 23, 2023
✔ NPI 1568542140 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0201X
License✔ Licensed in WI · 40020
Definition
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
Also ListedAllergy & ImmunologyTaxonomy 207K00000X · License 40020 (WI)
Also ListedPediatricsTaxonomy 208000000X · License 40020 (WI)
136 N MAIN ST STE 201, Thiensville, WI 53092
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1W178N9912 Rivercrest Dr Ste 105Germantown, WI 53022-4662 · Phone (262) 242-3369 · Fax (833) 599-2486
Location 24580 S Nicholson AveCudahy, WI 53110-1360 · Phone (414) 326-4800 · Fax (855) 270-4751
Location 33524 E Milwaukee StJanesville, WI 53546-1626 · Phone (608) 756-7100

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, MercyCare Health Plans.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

Reena A George 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 ID3476580275
PECOS Enrollment IDI20050723000112
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 Reassignment

Medicare enrollment records show Reena George reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Health System Corporation
65 mi
Mental Health (Including Community Mental Health Center)
903 MINERAL POINT AVE
Janesville, WI 53548
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,155 clinicians in this Medicare group
NPI 1669685129 (608) 756-5555

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 4

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.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
810 services26 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.
31 services25 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
13 services12 patients

Hospital Affiliations CMS Care Compare

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

Mercy Health System Corp

Acute Care Hospitals · Janesville, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520066
Location1000 Mineral Point AveJanesville, WI 53548 · Rock County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53092 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
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
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 2

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

SAMANTHA CACACE
Social Worker (Clinical)
136 N MAIN ST STE 201
THIENSVILLE, WI 53092
Ozaukee County (803) 606-1314
EMERALD INTEGRATIVE THERAPY LLC
Counselor (Professional)
136 N MAIN ST STE 201
THIENSVILLE, WI 53092
Ozaukee County (715) 563-4876

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 Reena George's NPI number?

The NPI number for Reena George is 1568542140. It was assigned to this individual provider in the NPPES registry on October 17, 2006.

Where is Reena George located?

Reena George practices at 136 N Main St Ste 201, Thiensville, WI 53092. The listed phone number is (262) 242-3369.

What is Reena George's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

Is Reena George enrolled in Medicare?

Yes. Reena George 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 organization bills Medicare for Reena George's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Reena George reassigns Medicare benefits to Mercy Health System Corporation (Janesville, WI). The 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 Reena George's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Reena George accept?

Health plans from Anthem Blue Cross and Blue Shield and MercyCare Health Plans list Reena George 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 Reena George affiliated with any hospitals?

According to CMS data, Reena George is affiliated with Mercy Health System Corp.

When was this NPI record last updated?

The NPPES record for Reena George was last updated on August 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.