DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) – Orthopaedic Trauma Physician, NPI 1912112384

DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) is a healthcare provider. based in South bend, Indiana. specializing in ORTHOPEDIC SURGERY. They hold the professional credentials DO. They hold a License No. OS18452 (FL). The NPI Number for DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) is 1912112384

Main info

Male
23 Years Of Experience
Accepts Medicare Assignment
Name
DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO)
NPI
1912112384
Phone
(574) 647-5300
Address
100 NAVARRE PL STE 4440
Enumeration Date
11 May 2007
Last Update Date
18 February 2026

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8504378711
Graduation Year
2003 (23 years ago)
PAC ID
7911070065
Group Practice PAC ID
9638215734
Professional Enrollment ID
I20220407001497
Address ID
FL325032254PE125XXWAYX306

Contacts

Secure Messaging
cmamczak@mybeacon.cernerdirect.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience67
Completeness95
Years active:19State licenses:1Other names

668 ORTHOPEDIC SURGERY in IN

Provider Addresses for DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO)

  • 100 NAVARRE PL STE 4440

    SOUTH BEND, IN 466011171

    Phone: (574) 647-5300

    Fax: (574) 647-5305

    Type: Location

  • PO BOX 95590

    SOUTH JORDAN, UT 840950590

    Phone:

    Type: Mailing

  • 125 BAPTIST WAY STE 4A

    PENSACOLA, FL 325032274

    Phone: (448) 227-6480

    Type: Location

  • 710, North Niles Avenue, South Bend, Saint Joseph County, Indiana, 46617, United States

    SOUTH BEND, IN 466171924

    Phone: (574) 647-1610

    Type: Mailing

  • 603 7TH ST S STE 450

    ST PETERSBURG, FL 337014741

    Phone: (727) 527-5272

    Fax: (727) 522-7412

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 70 Open Payments records for all available years, with a total value of $43,474.

Total Amount is formed as General ($43,474) + Research ($0) + Ownership ($0) = $43,474.

Last reported payment date: 2024-12-15 • Largest payer in this snapshot: Smith+Nephew, Inc. ($43,212).

Total Amount

$43,474

General + Research + Ownership

Payments

70

Total payment records

General Amount

$43,474

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-15

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2022-04-07

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20220407001497IOrthopedic SurgeryFLTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes5151$0
99213Established patient office or other outpatient visit, 20-29 minutes4131$0
99214Established patient office or other outpatient visit, 30-39 minutes2016$0
72190X-ray of pelvis, minimum of 3 views1612$0
View full utilization report →

Insurance plans in this area (ZIP 46601)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9638215734View full group profile

Reviews

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Frequently asked questions

How do I look up DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) by NPI?
Use NPI 1912112384 when you need to reference DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) in forms, claims, or directories.
Is DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) currently active in the NPI registry?
CMS-published data lists DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) as an active registrant.
What does DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) treat or focus on?
Patients typically see DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO) under the specialty Orthopaedic Trauma Physician. Clinical services aligned with this taxonomy classification.
Where does public data place DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO)?
The snapshot lists South Bend, Indiana for DR. CHRISTIAAN NIKOLAJE MAMCZAK (DO); download NPPES for the complete set.
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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