NPPES file of Aug 9, 2026

Deborah A. Guziatek-Karwan, CNP

Nurse Practitioner · Detroit, MI

Deborah A. Guziatek-Karwan, CNP is a nurse practitioner with a practice address in Detroit, Michigan, and NPI 1811937360, issued on Jun 6, 2006. Check the license (Michigan 4704144784, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811937360
Name
Deborah A. Guziatek-Karwan
Credential
CNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
4704144784 MI
Self-reported in NPPES; status is on the state search
Practice location
4100 John R, Detroit, MI 48201
Phone
(800) 527-6266
Enumerated
Jun 6, 2006
Record last updated
Oct 6, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(313) 576-8381
Medicare enrollment
Enrolled (PECOS I20060104000722); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4100 John R

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Asif Alavi, M.D.Hematology (Internal Medicine) Physician1790952562
  2. Gerold Bepler, MDMedical Oncology Physician1447280631
  3. Michael Dominello, DORadiation Oncology Physician1003135500
  4. Courtney French, PAPhysician Assistant1043253750
  5. Felicity Harper, PHDPsychologist1699085001
  6. Harold Kim, MDRadiation Oncology Physician1639198120

Verify Deborah A. Guziatek-Karwan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4704144784
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Michigan license search

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50% fewer Medicare Part D claims than the average nurse practitioner in 2024

559 Medicare Part D claims for 94 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 61 claims were for opioids.

  1. Deborah Guziatek-Karwan559
  2. Specialty average1,109

Most prescribed

  1. Anastrozole123 claims
  2. Exemestane48 claims
  3. Ibrance40 claims
  4. Gabapentin36 claims
  5. Alendronate Sodium34 claims
  6. Hydrocodone-Acetaminophen31 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $603.82

7 payments; by number, the most common kind was long term medical supply or device loan; the largest payer was Novartis Pharmaceuticals Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Deborah Guziatek-Karwan$603.82
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Barbara Ann Karmanos Cancer InstituteDetroit, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Deborah A. Guziatek-Karwan among 3,574 nurse practitioner records in Michigan

Deborah A. Guziatek-Karwan, CNP is one of 3,574 nurse practitioner records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 84% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1994 · median 2017 among the 1,983 with a school on file
  • Record last updated2016 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Michigan

There are 3,574 nurse practitioner records in Michigan.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Karen Braniff, NPDetroit, MI 482011750315370
  2. Margaret Campbell, PHD, RNDetroit, MI 482011265460323
  3. Jane Dean, MSN,NPDetroit, MI 482011538116520
  4. Kimberly Hayes-Hart, NPDetroit, MI 482011265545727
  5. Lisa Lange, CNPDetroit, MI 482011497792485
  6. Mary Lepczyk, CNPDetroit, MI 482011689611675
  7. Cynthia Marsack, CNPDetroit, MI 482011518966316
  8. Anne Mick, NPDetroit, MI 482011487697603

Common questions

What is Deborah A. Guziatek-Karwan, CNP's NPI number?

Deborah A. Guziatek-Karwan, CNP's National Provider Identifier (NPI) is 1811937360, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Deborah A. Guziatek-Karwan, CNP located?

The NPPES record lists a practice address at 4100 John R, Detroit, MI, 48201. Phone: (800) 527-6266. Providers update this record themselves, so call before visiting.

How can I verify Deborah A. Guziatek-Karwan, CNP's license?

NPPES lists Michigan license number 4704144784, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Deborah A. Guziatek-Karwan, CNP prescribe under Medicare Part D?

In 2024, Deborah A. Guziatek-Karwan, CNP had 559 Medicare Part D claims for 94 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.