Provider Profile
John Grzechowiak, APN
Unclaimed ProfileAbout John Grzechowiak
John Grzechowiak, APN is a nurse practitioner practicing in Clementon, NJ. Medicare claims data shows John provided 202 services to 195 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (856) 545-9500
- Email not available
Practice Locations
1238 CHEWS LANDING RD
Clementon, NJ 08021
Procedures Most Often Billed to Medicare
202 services · 195 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
136 | More often than most peers in Nurse Practitioner |
| Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza | Lab test | 87428 |
32 | More often than most peers in Nurse Practitioner |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
21 | As often as other peers in Nurse Practitioner |
| Urinalysis, manual test | Lab test | 81002 |
13 | Less often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 2022 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is John Grzechowiak?
John Grzechowiak is a nurse practitioner in Clementon, NJ. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is John Grzechowiak's address?
John Grzechowiak is listed at 1238 Chews Landing Rd, Clementon, NJ 08021. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John Grzechowiak?
The number on file is (856) 545-9500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for John Grzechowiak?
John Grzechowiak's National Provider Identifier is 1477257095. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did John Grzechowiak train?
John Grzechowiak attended Other, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John Grzechowiak have?
John Grzechowiak has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What procedures does John Grzechowiak perform?
According to Medicare billing data, John Grzechowiak the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John Grzechowiak's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John Grzechowiak. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.