EWELINA MARTA NIEDZIALKOWSKA MD
NPI 1447981204
Internal Medicine - Endocrinology, Diabetes & Metabolism in Rochester, MN

Active since June 22, 2022PECOS EnrolledAccepts Medicare Assignment
200 1ST ST SW, ROCHESTER, MN 55905(507) 284-2511 Get Directions Write a Review

NPPES record last updated: November 30, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Nov 30, 2025, May 14, 2025 (2 updates tracked since 2025).

About Ewelina Marta Niedzialkowska Md NPPES

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

EWELINA MARTA NIEDZIALKOWSKA MD (NPI 1447981204) is an individual endocrinology, diabetes & metabolism provider in Rochester, Minnesota, licensed in Minnesota (79162) and active in the NPI registry since June 2022. She is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains a secondary practice location in Royal Oak.

NPPES Registry Identity

NPI1447981204
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameEWELINA MARTA NIEDZIALKOWSKACredential: MD
Location Address200 1ST ST SWRochester, MN 55905-0001
Mailing AddressPo Box 860912Minneapolis, MN 55486-0912 · (507) 284-2511
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJune 22, 2022
Last NPPES UpdateNovember 30, 20252 updates tracked since enumeration
NPPES CertifiedNovember 30, 2025
✔ NPI 1447981204 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in MN · 79162
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License 4351049350 (MI)
200 1ST ST SW, Rochester, MN 55905

Secondary Practice Location 1

Location 13601 W 13 Mile RdRoyal Oak, MI 48073-6712 · Phone (248) 551-3000 · Fax (248) 551-9425

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

Ewelina Marta Niedzialkowska 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 ID9739568395
PECOS Enrollment IDI20250521002578
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.

Hospital Affiliations CMS Care Compare 2

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

Mayo Clinic Hospital Rochester

Acute Care Hospitals · Rochester, MN
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number240010
Location1216 Second Street SouthwestRochester, MN 55902 · Olmsted County
Emergency services Birthing friendly

Mayo Clinic Health System In Red Wing

Acute Care Hospitals · Red Wing, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240018
Location701 Hewitt BoulevardRed Wing, MN 55066 · Goodhue County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55905 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
$127.61 typical visit price
range $56.00 – $168.28
Typical copayment $31.90 (range $14.00 – $42.07)
Most-billed visit code 99204
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
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.

Internal Medicine
200 1ST ST SW
ROCHESTER, MN 55905
Pathology (Clinical Pathology/Laboratory Medicine)
200 1ST ST SW
ROCHESTER, MN 55905
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Optometrist
200 1ST ST SW
ROCHESTER, MN 55905
Psychologist
200 1ST ST SW
ROCHESTER, MN 55905
Nurse Anesthetist, Certified Registered
200 1ST ST SW
ROCHESTER, MN 55905
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 1ST ST SW
ROCHESTER, MN 55905

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 Ewelina Niedzialkowska's NPI number?

The NPI number for Ewelina Niedzialkowska is 1447981204. It was assigned to this individual provider in the NPPES registry on June 22, 2022.

Where is Ewelina Niedzialkowska located?

Ewelina Niedzialkowska practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.

What is Ewelina Niedzialkowska's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Ewelina Niedzialkowska enrolled in Medicare?

Yes. Ewelina Niedzialkowska 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.

Is Ewelina Niedzialkowska affiliated with any hospitals?

According to CMS data, Ewelina Niedzialkowska is affiliated with Mayo Clinic Hospital Rochester and Mayo Clinic Health System In Red Wing.

When was this NPI record last updated?

The NPPES record for Ewelina Niedzialkowska was last updated on November 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.