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DR. CHRISTOPHER M THOMAS D.O
NPI 1811302854
Emergency Medicine in Milwaukee, WI

Active since June 28, 2014PECOS Enrolled
2323 N LAKE DR, MILWAUKEE, WI 53211(414) 290-6720(414) 290-6755 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 17, 2018, Jul 20, 2017 (2 updates tracked since 2017).

About Dr. Christopher M Thomas D.o NPPES

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

DR. CHRISTOPHER M THOMAS D.O (NPI 1811302854) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (67192.21) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1811302854
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. CHRISTOPHER M THOMASCredential: D.O
Location Address2323 N LAKE DRMilwaukee, WI 53211-4508
Mailing Address111 E Wisconsin Avenune Suite 2100Milwaukee, WI 53202
Phone(414) 290-6720
Fax(414) 290-6755
Sole ProprietorNo
Enumeration DateJune 28, 2014
Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration
✔ NPI 1811302854 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in WI · 67192.21✔ Licensed in IL · 125.06984
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
2323 N LAKE DR, Milwaukee, WI 53211
Open in Google Maps ↗

Secondary Practice Locations 4

Location 1701 N 1st StSpringfield, IL 62702-3757 · Phone (217) 545-2711
Location 23200 Pleasant Valley RdWest Bend, WI 53095-9274 · Phone (414) 290-6720 · Fax (414) 290-6755
Location 313111 N Port Washington RdMequon, WI 53097-2416 · Phone (414) 290-6720 · Fax (414) 290-6755
Location 4W180N8085 Town Hall RdMenomonee Falls, WI 53051-3518 · Phone (414) 290-6720 · Fax (414) 290-6755

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare), Group Health Cooperative-SCW.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Christopher M Thomas D.o is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

6

Medicare enrollment records show Christopher Thomas reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Froedtert & the Medical College Of Wisconsin Community Physicians, Inc.
15 mi
Internal Medicine
W180N8000 TOWN HALL RD
Menomonee Falls, WI 53051
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,294 clinicians in this Medicare group
NPI 1568787448 (262) 255-2500
Emergency Medicine Specialists, S.C.
16 mi
Emergency Medicine
10625 W NORTH AVE, SUITE 102
Milwaukee, WI 53226
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: Emergency Medicine Specialists Sc
  • 244 clinicians in this Medicare group
NPI 1568413524 (414) 877-5350
Prairie Ridge Health, Inc.
61 mi
Critical Access
1515 PARK AVE
Columbus, WI 53925
  • Reassigned Medicare billing, Wisconsin enrollment
  • 132 clinicians in this Medicare group
NPI 1841376183 (920) 623-2200
Madison Emergency Physicians, Sc
77 mi
Emergency Medicine
700 S PARK ST
Madison, WI 53715
  • Reassigned Medicare billing, Wisconsin enrollment
  • 103 clinicians in this Medicare group
NPI 1588646095 (608) 258-6100
Reedsburg Area Medical Center, Inc.
112 mi
Critical Access
2000 N DEWEY AVE
Reedsburg, WI 53959
  • Reassigned Medicare billing, Wisconsin enrollment
  • 96 clinicians in this Medicare group
NPI 1891796710 (608) 524-6487
Upland Hills Health, Inc.
114 mi
Critical Access
800 COMPASSION WAY
Dodgeville, WI 53533
  • Reassigned Medicare billing, Wisconsin enrollment
  • 130 clinicians in this Medicare group
NPI 1487745501 (608) 930-8000

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
273 services272 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
256 services252 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
108 services108 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
83 services83 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53211 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
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.

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.

NATALIA RUMAS MD
Emergency Medicine
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 290-6720
GRETCHEN JANET WADEWITZ PT
Physical Therapist
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1066
RAVEN JULIUS SANDIFER JR. PHARMD
Pharmacist
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1068
DR. SYDNEY S BISHOP PHARMD
Pharmacist (Critical Care)
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 585-1068
DR. RICHARD C. LENNERTZ JR. M.D.
Pain Medicine (Interventional Pain Medicine)
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1000
MRS. SUSAN K. VANDERTIE RD CDE
Dietitian, Registered
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1143
BIANA KOTLYAR M.D.
Psychiatry & Neurology (Psychiatry)
2323 N LAKE DR, 1ST FLOOR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1620
MS. ANN MARIE FISCHER OTR0
Occupational Therapist
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1066

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 Christopher Thomas's NPI number?

The NPI number for Christopher Thomas is 1811302854. It was assigned to this individual provider in the NPPES registry on June 28, 2014.

Where is Christopher Thomas located?

Christopher Thomas practices at 2323 N Lake Dr, Milwaukee, WI 53211. The listed phone number is (414) 290-6720.

What is Christopher Thomas's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Christopher Thomas enrolled in Medicare?

Yes. Christopher Thomas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Christopher Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Thomas reassigns Medicare benefits to 6 organizations: Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI), Emergency Medicine Specialists, S.C. (Milwaukee, WI), Prairie Ridge Health, Inc. (Columbus, WI), Madison Emergency Physicians, Sc (Madison, WI), Reedsburg Area Medical Center, Inc. (Reedsburg, WI) and 1 more organization, listed in the Medicare section above. 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 Christopher Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christopher Thomas accept?

Health plans from CareSource (Common Ground Healthcare) and Group Health Cooperative-SCW list Christopher Thomas 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 Christopher Thomas was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.