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NATALIA RUMAS MD
NPI 1003233016
Emergency Medicine in Milwaukee, WI

Active since March 27, 2014PECOS EnrolledAccepts Medicare Assignment
2323 N LAKE DR, MILWAUKEE, WI 53211(414) 290-6720(414) 290-6755 Get Directions Write a Review

NPPES record last updated: July 2, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Natalia Rumas Md NPPES

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

NATALIA RUMAS MD (NPI 1003233016) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (68713-20) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1003233016
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameNATALIA RUMASCredential: MD
Location Address2323 N LAKE DRMilwaukee, WI 53211
Mailing Address111 E Wisconsin Ave Ste 2000Milwaukee, WI 53202-4809 · (414) 290-6720 · Fax (414) 290-6755
Phone(414) 290-6720
Fax(414) 290-6755
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2014
Enumeration DateMarch 27, 2014
Last NPPES UpdateJuly 2, 2018
✔ NPI 1003233016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in WI · 68713-20
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
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Secondary Practice Locations 4

Location 11 Boston Medical Ctr Pl, Boston Medical CenterBoston, MA 02118-2908 · Phone (847) 533-0072
Location 2W180N8085 Town Hall RdMenomonee Falls, WI 53051-3518 · Phone (414) 290-6720 · Fax (414) 290-6755
Location 33200 Pleasant Valley RdWest Bend, WI 53095-9274 · Phone (414) 290-6720 · Fax (414) 290-6755
Location 413111 N Port Washington RdMequon, WI 53097-2416 · 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).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

Natalia Rumas 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 ID143440677
PECOS Enrollment IDI20180730001061
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

3

Medicare enrollment records show Natalia Rumas reassigns Medicare billing to 3 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
Door County Memorial Hospital
125 mi
Critical Access
323 S 18TH AVE
Sturgeon Bay, WI 54235
  • Reassigned Medicare billing, Wisconsin enrollment
  • 131 clinicians in this Medicare group
NPI 1093743874 (920) 743-5566

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 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.

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.
121 services113 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.
72 services71 patients
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.
55 services55 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.
39 services39 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.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520051
Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County
Emergency services Birthing friendly

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

Ascension Wisconsin Hosp Menomonee Falls Campus

Acute Care Hospitals · Menomonee Falls, WI
OwnershipProprietary
CMS Certification Number520214
LocationN88w14275 Main Street, Suite 100Menomonee Falls, WI 53051 · Waukesha County
Emergency services

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.

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
MS. JULIA E MCMAHON RPH
Pharmacist
2323 N LAKE DR
MILWAUKEE, WI 53211
Milwaukee County (414) 291-1068

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 Natalia Rumas's NPI number?

The NPI number for Natalia Rumas is 1003233016. It was assigned to this individual provider in the NPPES registry on March 27, 2014.

Where is Natalia Rumas located?

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

What is Natalia Rumas's specialty?

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

Is Natalia Rumas enrolled in Medicare?

Yes. Natalia Rumas 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 Natalia Rumas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Natalia Rumas reassigns Medicare benefits to 3 organizations: Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI), Emergency Medicine Specialists, S.C. (Milwaukee, WI) and Door County Memorial Hospital (Sturgeon Bay, 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 Natalia Rumas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Natalia Rumas accept?

Health plans from CareSource (Common Ground Healthcare) list Natalia Rumas 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 Natalia Rumas affiliated with any hospitals?

According to CMS data, Natalia Rumas is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, Ascension SE Wisconsin Hospital and Ascension Wisconsin Hosp Menomonee Falls Campus.

When was this NPI record last updated?

The NPPES record for Natalia Rumas was last updated on July 2, 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.