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
- Entity
- Type 1 · individual
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
76% fewer Medicare Part D claims than the average nurse practitioner in 2024
277 Medicare Part D claims for 200 beneficiaries, against an average of 1,144 among the 50,277 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.
One hospital or facility affiliation
- Inspira Health Network Urgent Care PCGlassboro, NJ
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
2 nurse practitioner records list a Clementon practice address
They are 2 of the 139 NPPES records with a Clementon practice address, and 1,776 nurse practitioner records in New Jersey.
All 2 in Clementon → All 1,776 in New Jersey → Every provider in Clementon →
Other nurse practitioner records in New Jersey
- Grace Abad, MSN RN, ANP-BCSomerville, NJ1710203450
- Ria Charisma Abadinas, DNP, APN-CEgg Harbor Township, NJ1396356457
- Colleen Abell, C.R.N.PFlorham Park, NJ1528254232
- Christine Ablett, APN-CNorthfield, NJ1134452832
- Rosalyn AbrahamUnion, NJ1033692769
- Luis Abreu RosarioHackensack, NJ1568318038
- Mary AbuhouranNeptune, NJ1699538694
- Ashley Acevedo, NPLyndhurst, NJ1548975840
- Patricia Acevedo, NPDover, NJ1497411979
- Katherine Adamczyk, APNHillsborough, NJ1184122061
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 1,144. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.