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DR. ALEXANDRA JOY ERHARDT DO
NPI 1861853343
Transplant Surgery in Hackensack, NJ

Active since March 11, 2016PECOS EnrolledAccepts Medicare Assignment
20 PROSPECT AVE, STE 406, HACKENSACK, NJ 07601(551) 996-2959 Get Directions Write a Review

NPPES record last updated: May 22, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Alexandra Joy Erhardt Do NPPES

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

DR. ALEXANDRA JOY ERHARDT DO (NPI 1861853343) is an individual transplant surgery provider in Hackensack, New Jersey, licensed in New Jersey (25MB11946000) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Hackensack University Medical Center, and maintains a secondary practice location in North Bergen.

NPPES Registry Identity

NPI1861853343
Entity TypeIndividualFemale
Primary Taxonomy204F00000X
Provider Legal NameDR. ALEXANDRA JOY ERHARDTCredential: DO
Location Address20 PROSPECT AVE, STE 406Hackensack, NJ 07601-1941
Mailing Address331 Newman Springs Rd, Bldg 2, Ste 220Red Bank, NJ 07701-5688
Phone(551) 996-2959
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMarch 11, 2016
Last NPPES UpdateMay 22, 2026
NPPES CertifiedMay 22, 2026
✔ NPI 1861853343 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyTransplant SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code204F00000X
License✔ Licensed in NJ · 25MB11946000
Definition
A surgeon who specializes in transplant surgery. Source: National Uniform Claim Committee
20 PROSPECT AVE, Hackensack, NJ 07601
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Secondary Practice Location 1

Location 17600 River RdNorth Bergen, NJ 07047-6217 · Phone (201) 710-2753 · Fax (201) 758-2740

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

Dr. Alexandra Joy Erhardt Do 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 ID5597169631
PECOS Enrollment IDI20230901000465
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.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
123 services76 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
79 services36 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
49 services38 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
49 services23 patients
Preparation of donor kidney for transplantation 50323
Preparation of a kidney for transplantation involves careful evaluation of the donor organ. It includes checking for diseases, ensuring compatibility, and preserving the organ in a cold solution until transplantation. This process ensures the best outcome for the recipient.
35 services35 patients
Transplantation of donor kidney 50360
Transplantation of a donor kidney involves replacing a non-functioning kidney with a healthy one from a donor. This procedure can significantly improve the quality of life for those with serious kidney disease. The new kidney can perform the essential task of filtering blood and removing waste.
34 services34 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hackensack University Medical Center

Acute Care Hospitals · Hackensack, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310001
Location30 Prospect AveHackensack, NJ 07601 · Bergen County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHRISTOPHER M. SHAARI M.D.
Otolaryngology
20 PROSPECT AVE, SUITE 712
HACKENSACK, NJ 07601
Bergen County (201) 342-8060
MS. ELIZABTH ANNE BILOTTI APN-BC
Nurse Practitioner (Adult Health)
20 PROSPECT AVE, THE CANCER CENTER AT HACKENSACK UNIVERSITY MEDICAL CTR.
HACKENSACK, NJ 07601
Bergen County (201) 996-5900
DR. JOSEPH B. GLOWACKI DO
Internal Medicine (Infectious Disease)
20 PROSPECT AVE, STE 507
HACKENSACK, NJ 07601
Bergen County (201) 487-4088
EPILEPSY & NEUROPHYSIOLOGY MEDICAL CONSULTANTS PA
Psychiatry & Neurology (Neurology)
20 PROSPECT AVE, SUITE 800
HACKENSACK, NJ 07601
Bergen County (201) 996-3205
JEROME F LEVINE M.D.
Internal Medicine (Infectious Disease)
20 PROSPECT AVE, SUITE 507
HACKENSACK, NJ 07601
Bergen County (201) 487-4088
MS. THERESA M GABAY APRN, BC
Nurse Practitioner (Family)
20 PROSPECT AVE, SUITE 800
HACKENSACK, NJ 07601
Bergen County (201) 996-5251
LISA HA
Nurse Practitioner (Acute Care)
20 PROSPECT AVE
HACKENSACK, NJ 07601
Bergen County (551) 996-2000
THE CENTER FOR ADVANCED NEUROSURGERY, LLC
Neurological Surgery
20 PROSPECT AVE, SUITE 811
HACKENSACK, NJ 07601
Bergen County (201) 881-0700

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 Erhardt's NPI number?

The NPI number for Alexandra Erhardt is 1861853343. It was assigned to this individual provider in the NPPES registry on March 11, 2016.

Where is Alexandra Erhardt located?

Alexandra Erhardt practices at 20 Prospect Ave Ste 406, Hackensack, NJ 07601. The listed phone number is (551) 996-2959.

What is Alexandra Erhardt's specialty?

The primary specialty registered for this NPI is Transplant Surgery with taxonomy code 204F00000X.

Is Alexandra Erhardt enrolled in Medicare?

Yes. Alexandra Erhardt 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.

Is Alexandra Erhardt affiliated with any hospitals?

According to CMS data, Alexandra Erhardt is affiliated with Hackensack University Medical Center.

When was this NPI record last updated?

The NPPES record for Alexandra Erhardt was last updated on May 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.