John Grzechowiak, APN
Nurse Practitioner · Clementon, NJ
John Grzechowiak, APN is a nurse practitioner with a practice address in Clementon, New Jersey, and NPI 1477257095, issued on Mar 28, 2023. Check the license (New Jersey 26NJ01443700, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Grzechowiak
- Credential
- APN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 26NJ01443700 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1238 Chews Landing RD, Clementon, NJ 08021
- Phone
- (856) 545-9500
- Enumerated
- Mar 28, 2023
- Record last updated
- Jul 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20240214001363); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,961 in New Jersey → Look up another NPI →
Also registered at 1238 Chews Landing RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rhode Badio, PAPhysician Assistant1316382484
- Anhthu Pickart, PA-CPhysician Assistant1043602964
Verify John Grzechowiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 26NJ01443700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average nurse practitioner in 2024
277 Medicare Part D claims for 200 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone57 claims
- Amoxicillin-Clavulanate Potass33 claims
- Azithromycin29 claims
- Doxycycline Monohydrate21 claims
- Cephalexin19 claims
- Albuterol Sulfate Hfa13 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.
Bills Medicare through one group practice
- Inspira Health Network Urgent Care PCGlassboro, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Grzechowiak among 1,961 nurse practitioner records in New Jersey
John Grzechowiak, APN is one of 1,961 nurse practitioner records with a practice address in New Jersey. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 75% of them.
- NPI issued2023 · 75% of these records are older, 18% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2019 among the 1,170 with a school on file
- Record last updated2025 · 39% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 nurse practitioner records list a practice address in Clementon
They are 3 of the 139 NPPES records with a practice address in Clementon, and 1,961 nurse practitioner records in New Jersey.
All 1,961 in New Jersey → Every provider in Clementon → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Tiara Farmer, FNPClementon, NJ 080211942188602
- Parneet KaurClementon, NJ 080211598566572
- Nicole Sgouros, FNP-CPine Hill, NJ 080211134080096
- Annick AgahColumbus, NJ 080221699626465
- Karla Rubini, NPColumbus, NJ 080221093366551
- Kendyl Bobbie-Gulliford, APNBurlington City, NJ 080161336933241
- Kaitlyn Cestaro, APNBurlington, NJ 080161437957693
- Allie Campo, APNBrowns Mills, NJ 080151265949358
Common questions
What is John Grzechowiak, APN's NPI number?
John Grzechowiak, APN's National Provider Identifier (NPI) is 1477257095, issued on Mar 28, 2023. An NPI identifies a provider in billing; it is not a license.
Where is John Grzechowiak, APN located?
The NPPES record lists a practice address at 1238 Chews Landing RD, Clementon, NJ, 08021. Phone: (856) 545-9500. Providers update this record themselves, so call before visiting.
How can I verify John Grzechowiak, APN's license?
NPPES lists New Jersey license number 26NJ01443700, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does John Grzechowiak, APN prescribe under Medicare Part D?
In 2024, John Grzechowiak, APN had 277 Medicare Part D claims for 200 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.