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ALEXANDER NIEMCZYK MD
NPI 1417690652
Anesthesiology in Minneapolis, MN

Active since April 15, 2022PECOS Enrolled
420 DELAWARE ST SE, MINNEAPOLIS, MN 55455(612) 625-4116 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 29, 2026, Apr 15, 2022 (2 updates tracked since 2022).

About Alexander Niemczyk Md NPPES

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

ALEXANDER NIEMCZYK MD (NPI 1417690652) is an individual anesthesiology provider in Minneapolis, Minnesota, licensed in Minnesota (82687) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Minneapolis, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1417690652
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameALEXANDER NIEMCZYKCredential: MD
Location Address420 DELAWARE ST SEMinneapolis, MN 55455-0341
Mailing Address420 Delaware St SeMinneapolis, MN 55455-0341 · (612) 625-4116
Phone(612) 625-4116
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 15, 2022
Last NPPES UpdateJune 19, 20262 updates tracked since enumeration
NPPES CertifiedJune 19, 2026
✔ NPI 1417690652 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MN · 82687
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
420 DELAWARE ST SE, Minneapolis, MN 55455
Open in Google Maps ↗

Secondary Practice Location 1

Location 1701 Park AveMinneapolis, MN 55415-1623 · Phone (612) 873-3000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexander Niemczyk Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID840679452
PECOS Enrollment IDI20260702002149
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 Alexander Niemczyk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Centracare Clinic
34 mi
Multi-Specialty
16830 198TH AVE NW, CENTRACARE CLINIC - BIG LAKE
Big Lake, MN 55309
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,051 clinicians in this Medicare group
NPI 1013104348 (763) 263-7300

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

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.

KHALID AMIN MD
Pathology (Anatomic Pathology & Clinical Pathology)
420 DELAWARE ST SE, C463 MAYO MEMORIAL BLDG, MAYO MAIL CODE 76
MINNEAPOLIS, MN 55455
Hennepin County (913) 827-3505
MELISSA RICHARDSON PA-C
Physician Assistant
420 DELAWARE ST SE
MINNEAPOLIS, MN 55455
Hennepin County (612) 273-3000
DR. RAID SAID MOUSA YOUSEF M.D.
Student in an Organized Health Care Education/Training Program
420 DELAWARE ST SE, MMC 11
MINNEAPOLIS, MN 55455
Hennepin County (612) 625-7911
DR. DAVID YOUNG BALSER MD
Physical Medicine & Rehabilitation
420 DELAWARE ST SE
MINNEAPOLIS, MN 55455
Hennepin County (612) 625-2661
ALEXANDER TROESTER
Student in an Organized Health Care Education/Training Program
420 DELAWARE ST SE
MINNEAPOLIS, MN 55455
Hennepin County (612) 625-6483
NIKITHA VOBUGARI MD
Internal Medicine (Hematology & Oncology)
420 DELAWARE ST SE, MMC 480
MINNEAPOLIS, MN 55455
Hennepin County (612) 626-0400
THOMAS HOUGHLAND MD
Student in an Organized Health Care Education/Training Program
420 DELAWARE ST SE
MINNEAPOLIS, MN 55455
Hennepin County (612) 626-5589
DR. ANUSHA L GOPALAM MD
Student in an Organized Health Care Education/Training Program
420 DELAWARE ST SE
MINNEAPOLIS, MN 55455
Hennepin County (612) 625-5454

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 Alexander Niemczyk's NPI number?

The NPI number for Alexander Niemczyk is 1417690652. It was assigned to this individual provider in the NPPES registry on April 15, 2022.

Where is Alexander Niemczyk located?

Alexander Niemczyk practices at 420 Delaware St SE, Minneapolis, MN 55455. The listed phone number is (612) 625-4116.

What is Alexander Niemczyk's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Alexander Niemczyk enrolled in Medicare?

Yes. Alexander Niemczyk is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexander Niemczyk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Niemczyk reassigns Medicare benefits to Centracare Clinic (Big Lake, MN). 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 Alexander Niemczyk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexander Niemczyk was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.