MICHAEL CASMIR KOWALCZYK (DO) – Internal Medicine Physician, NPI 1649277211

MICHAEL CASMIR KOWALCZYK (DO) is a healthcare provider. based in Lansing, Michigan. specializing in INTERNAL MEDICINE. They hold the professional credentials DO. They hold a License No. MK010436 (MI). The NPI Number for MICHAEL CASMIR KOWALCZYK (DO) is 1649277211

Main info

Male
38 Years Of Experience
Accepts Medicare Assignment
Name
MICHAEL CASMIR KOWALCZYK (DO)
NPI
1649277211
Phone
(517) 374-7600
Address
3955 PATIENT CARE DR
Enumeration Date
28 June 2005
Deactivation Date
17 March 2006
Reactivation Date
28 March 2006
Last Update Date
18 March 2025

Doctor Profile

Medical School Name
MICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Secondary Phone
5173747600
Graduation Year
1988 (38 years ago)
PAC ID
0244219194
Group Practice PAC ID
8022097963
Professional Enrollment ID
I20040722001237
Address ID
MI489114299LA3955XDRXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

7,218 INTERNAL MEDICINE in MI

Provider Addresses for MICHAEL CASMIR KOWALCZYK (DO)

  • 3955 PATIENT CARE DR

    LANSING, MI 48911

    Phone: (517) 374-7600

    Fax: (517) 908-0886

    Type: Mailing

  • 3937 PATIENT CARE WAY

    STE 104

    LANSING, MI 489114287

    Phone: (517) 374-4202

    Fax: (517) 272-4477

    Type: Location

  • 3955 PATIENT CARE DR STE A

    LANSING, MI 489114271

    Phone: (517) 374-7600

    Fax: (885) 480-9150

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 104 Open Payments records for all available years, with a total value of $2,044.

Total Amount is formed as General ($2,044) + Research ($0) + Ownership ($0) = $2,044.

Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Novo Nordisk Inc ($261).

Total Amount

$2,044

General + Research + Ownership

Payments

104

Total payment records

General Amount

$2,044

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-12

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: 2004-07-22

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
I20040722001237IInternal MedicineMITBD

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
99214Established patient office or other outpatient visit, 30-39 minutes226111$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes211109$0
77080Dxa bone density measurement of hip, pelvis, spine159159$0
77089Calculation of trabecular bone score (tbs) using imaging data with interpretation and report on fracture risk137137$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes116114$0
View full utilization report →

Insurance plans in this area (ZIP 48911)

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Provider's Procedures

MICHAEL CASMIR KOWALCZYK (DO) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINEMI90670Pneumococcal vaccine for injection into muscle2323

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: 8022097963View full group profile
NameSpecialtyState
Nurse PractitionerMI
-MI
Physician AssistantMI
Osteopathic Manipulative MedicineMI
Internal MedicineMI
-MI
Nurse PractitionerMI
Internal MedicineMI
-MI
O B S T E T R I C S/ G Y N E C O L O G YMI

Reviews

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Frequently asked questions

Where can patients find MICHAEL CASMIR KOWALCZYK (DO)'s NPI?
You can confirm MICHAEL CASMIR KOWALCZYK (DO) with NPI 1649277211; it appears in the national provider directory.
Is MICHAEL CASMIR KOWALCZYK (DO) currently active in the NPI registry?
CMS-published data lists MICHAEL CASMIR KOWALCZYK (DO) as an active registrant.
Does MICHAEL CASMIR KOWALCZYK (DO) list a primary specialty?
If you are matching referrals, note Internal Medicine Physician for MICHAEL CASMIR KOWALCZYK (DO). Clinical services aligned with this taxonomy classification.
Does MICHAEL CASMIR KOWALCZYK (DO) practice in Michigan?
You will see Lansing, Michigan on file for MICHAEL CASMIR KOWALCZYK (DO) alongside any extra practice locations.
What if Lansing, Michigan seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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