NPPES file of Aug 9, 2026

Gregory James Niedzwiecki, PA-C

Physician Assistant · Lansing, MI

Gregory James Niedzwiecki, PA-C is a physician assistant with a practice address in Lansing, Michigan, and NPI 1720305592, issued on May 3, 2010. Check the license (Michigan 5601005718, 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
1720305592
Name
Gregory James Niedzwiecki
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
5601005718 MI
3202006021 MI
Self-reported in NPPES; status is on the state search
Practice location
1215 E Michigan Ave, Lansing, MI 48912
Phone
(517) 364-1000
Enumerated
May 3, 2010
Record last updated
Dec 18, 2014 (not updated in 12 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1215 E Michigan Ave

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

  1. Mishref Abdelhamid, MDNeonatal-Perinatal Medicine Physician1558910216
  2. Shiva Aboagye, NPFamily Nurse Practitioner1063004786
  3. Mohamed Abou-Kassem, MDAnesthesiology Physician1104357144
  4. Aaron Abramovitz, MDCritical Care Medicine (Internal Medicine) Physician1508027749
  5. Fawzi Abu Rous, MDMedical Oncology Physician1992226575
  6. Francis AbuanPhysical Therapist1487156030

Verify Gregory James Niedzwiecki 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 5601005718
    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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90% fewer Medicare Part D claims than the average physician assistant in 2024

82 Medicare Part D claims for 64 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Gregory Niedzwiecki82
  2. Specialty average830

Most prescribed

  1. Cephalexin16 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: $31.63

1 payment: food and beverage; the largest payer was Ucb, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Niedzwiecki$31.63
  2. Specialty average$841.65

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

Gregory James Niedzwiecki among 6,989 physician assistant records in Michigan

Gregory James Niedzwiecki, PA-C is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 29% of them.

  • NPI issued2010 · 29% of these records are older, 68% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2014 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

154 physician assistant records list a practice address in Lansing

They are 154 of the 5,276 NPPES records with a practice address in Lansing, and 6,989 physician assistant records in Michigan.

The 8 physician assistant records with the nearest ZIP codes

  1. Angela Beckhold, PALansing, MI 489121881793958
  2. Christopher Buffa, PALansing, MI 489121487753513
  3. Jane Dailey, PACLansing, MI 489121659463537
  4. Katie Focht, PA-CLansing, MI 489121134138480
  5. Heather Klopp, PALansing, MI 489121235151788
  6. April Martino, PA-CLansing, MI 489121467580043
  7. Catherine Nehil, PALansing, MI 489121427130194
  8. Elizabeth Pelletier, PACLansing, MI 489121114021482

Common questions

What is Gregory James Niedzwiecki, PA-C's NPI number?

Gregory James Niedzwiecki, PA-C's National Provider Identifier (NPI) is 1720305592, issued on May 3, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Gregory James Niedzwiecki, PA-C located?

The NPPES record lists a practice address at 1215 E Michigan Ave, Lansing, MI, 48912. Phone: (517) 364-1000. Providers update this record themselves, so call before visiting.

How can I verify Gregory James Niedzwiecki, PA-C's license?

NPPES lists Michigan license number 5601005718, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory James Niedzwiecki, PA-C prescribe under Medicare Part D?

In 2024, Gregory James Niedzwiecki, PA-C had 82 Medicare Part D claims for 64 beneficiaries; the average among physician assistant prescribers was 830. 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.