ELIEZER ZACHARY NUSSBAUM MD
NPI 1467981704
Internal Medicine - Infectious Disease in Boston, MA

Q: What is the provider's specialty?

The provider's specialty is Internal Medicine with taxonomy code 207RI0200X and a focus in Infectious Disease.

Active since June 09, 2017PECOS EnrolledAccepts Medicare Assignment

55 FRUIT STREET, BUL-130, BOSTON, MA 02114(617) 726-3812(617) 726-3755 Get Directions Write a Review

NPPES record last updated: June 16, 2023. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 16, 2023, Jul 21, 2020, Jun 9, 2017 (3 updates tracked since 2017).

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About Eliezer Zachary Nussbaum Md NPPES

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

ELIEZER ZACHARY NUSSBAUM MD (NPI 1467981704) is an individual infectious disease provider in Boston, Massachusetts, licensed in Massachusetts (1013347) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Tufts Medical Center, and is a graduate of Boston University School Of Medicine (2017).

NPPES Registry Identity

NPI1467981704

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameELIEZER ZACHARY NUSSBAUMCredential: MD

Location Address55 FRUIT STREET, BUL-130Boston, MA 02114

Mailing Address55 Fruit Street, Bul-130Boston, MA 02114 · (617) 726-3812 · Fax (617) 726-3755

Phone(617) 726-3812

Fax(617) 726-3755

Sole ProprietorYes

Medical School CMSBoston University School Of MedicineGraduated 2017

Enumeration DateJune 9, 2017

Last NPPES UpdateJune 16, 20233 updates tracked since enumeration

NPPES CertifiedJune 16, 2023

✔ NPI 1467981704 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

Licenses✔ Licensed in MA · 1013347✔ Licensed in MA · 283372

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

55 FRUIT STREET, Boston, MA 02114

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Other Names 1

Other Name (5)Dr. Zach Nussbaum Md

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

Eliezer Zachary Nussbaum Md 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 ID143590414

PECOS Enrollment IDI20230207002658

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 3

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

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.

175 services46 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

24 services24 patients

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.

16 services14 patients

Hospital Affiliations CMS Care Compare

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

Tufts Medical Center

Acute Care Hospitals · Boston, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220116

Location800 Washington StreetBoston, MA 02111 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.