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ALEXANDRA GRONCZEWSKI
NPI 1477241958
Nurse Practitioner - Family in Princeton, NJ

Active since April 24, 2023PECOS EnrolledAccepts Medicare Assignment
20 ELM RD, PRINCETON, NJ 08540(609) 610-3222 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Alexandra Gronczewski NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDRA GRONCZEWSKI (NPI 1477241958) is an individual family provider in Princeton, New Jersey, licensed in New Jersey (26NJ01475100) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS, maintains a secondary practice location in Princeton, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1477241958
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameALEXANDRA GRONCZEWSKI
Location Address20 ELM RDPrinceton, NJ 08540-2502
Mailing Address20 Elm RdPrinceton, NJ 08540-2502 · (609) 610-3222
Phone(609) 610-3222
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 24, 2023
Last NPPES UpdateSeptember 15, 2025
NPPES CertifiedSeptember 15, 2025
✔ NPI 1477241958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
Licenses✔ Licensed in NJ · 26NJ01475100✔ Licensed in NJ · 26NJ014751000
20 ELM RD, Princeton, NJ 08540
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Secondary Practice Location 1

Location 1208 Bunn DrPrinceton, NJ 08540-2851 · Phone (609) 683-4999

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexandra Gronczewski is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6204333446
PECOS Enrollment IDI20251006003869
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08540 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.90 typical visit price
range $61.59 – $185.05
Typical copayment $23.72 (range $15.39 – $46.26)
Most-billed visit code 99203
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexandra Gronczewski's NPI number?

The NPI number for Alexandra Gronczewski is 1477241958. It was assigned to this individual provider in the NPPES registry on April 24, 2023.

Where is Alexandra Gronczewski located?

Alexandra Gronczewski practices at 20 Elm Rd, Princeton, NJ 08540. The listed phone number is (609) 610-3222.

What is Alexandra Gronczewski's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Alexandra Gronczewski enrolled in Medicare?

Yes. Alexandra Gronczewski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Alexandra Gronczewski was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.