Dr. Eliezer Zachary Nussbaum, MD
- Medicare services, 2024
- 233
- Medicare patients, 2024
- 86
- Part D claims, 2024
- 115
- Hospital affiliations
- 2
- Industry payments
- $58
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nussbaum's professional email, personal email and mobile number
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Dr. Eliezer Zachary Nussbaum is an infectious disease specialist in Boston, Massachusetts
Dr. Nussbaum practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Nussbaum's NPI, 1467981704, was assigned on June 9, 2017. Dr. Nussbaum graduated from Boston University School of Medicine in 2017. Dr. Nussbaum holds Massachusetts license 1013347.
- NPI
- 1467981704NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143590414
- NPI enumeration date
- June 9, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 636-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eliezer Zachary Nussbaum practices at Tufts Medical Center in Boston, Massachusetts
Dr. Nussbaum's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Eliezer Zachary Nussbaum is affiliated with 3 sites of care and 1 medical group
Dr. Nussbaum's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dr. Nussbaum is also affiliated with Massachusetts General Hospital. The medical group on file is Pratt Medical Group, Inc. - General Medical Associates (General Internal Medicine). Dmand AI also links Dr. Nussbaum to 1 more imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eliezer Zachary Nussbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nussbaum practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eliezer Zachary Nussbaum is one of 395 infectious disease specialists in Massachusetts
Infectious disease is Dr. Nussbaum's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Nussbaum is licensed in Massachusetts.
Specialties and state licenses
- Infectious disease, MassachusettsPrimary
Infectious disease specialists near Dr. Nussbaum
Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Eliezer Zachary Nussbaum billed Medicare for 233 services in 2024
CMS data shows 233 Medicare services from Dr. Nussbaum across 4 procedure codes in 2024, for 86 Medicare patients. Medicare paid $22,206 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nussbaum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1692024: 21527%
- Other services
- 2023: 02024: 18
Dr. Nussbaum compared with the Massachusetts median for infectious disease specialists, 2024
- Dr. Nussbaum
- Massachusetts median
- Medicare services
- 233vs 16343% above
- Medicare patients
- 86vs 949% below
- Part D claims
- 26vs 10876% below
Medians across 363 infectious disease specialists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Nussbaum's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nussbaum and other infectious disease specialists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eliezer Zachary Nussbaum treated 86 Medicare patients in 2024, average age 65
CMS counts 86 Medicare patients who saw Dr. Nussbaum in 2024. The largest group is 65 to 74, with 40 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 4.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nussbaum's median patient age at 57, with 38% women.
Dr. Nussbaum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nussbaum's Medicare patients by sex, 2024
- Women3642%
- Men5058%
Chronic conditions among Dr. Nussbaum's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease73%
- Heart failure66%
- Ischemic heart disease58%
- Anxiety55%
- Mood disorders53%
- Diabetes51%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nussbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women38%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eliezer Zachary Nussbaum wrote 115 Medicare Part D claims in 2024
In 2024, Dr. Nussbaum wrote 115 Medicare Part D claims for 25 patients. 71% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $32,816 in total drug cost. In 2022, CMS named 42 claims across 3 drugs.
Dr. Nussbaum's Part D claims by kind of drug, 2024
- Generic82 claims71%
- Brand-name33 claims29%
Dr. Nussbaum's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nussbaum's Part D claims, 2024
- Antibiotics24%28 of 115 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 422024: 2638%
Drugs named by CMS: 2 in 2024, 3 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Eliezer Zachary Nussbaum offers telehealth to Medicare patients
Dr. Nussbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nussbaum as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Eliezer Zachary Nussbaum received $58 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Nussbaum from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Melinta Therapeutics, Inc. paid the most, $58.
Companies that paid Dr. Nussbaum the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eliezer Zachary Nussbaum graduated from Boston University School of Medicine
Dr. Nussbaum graduated from Boston University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eliezer Zachary Nussbaum's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Eliezer Zachary Nussbaum
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Eliezer Zachary Nussbaum's NPI number?
Dr. Eliezer Zachary Nussbaum's NPI number is 1467981704. It was assigned on June 9, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Eliezer Zachary Nussbaum?
Dr. Eliezer Zachary Nussbaum is an infectious disease specialist in Boston, Massachusetts. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Eliezer Zachary Nussbaum practice?
Dr. Nussbaum practices at 800 Washington Street, Boston, MA 02111. Dr. Nussbaum's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Nussbaum to 1 imaging center.
What is Dr. Eliezer Zachary Nussbaum's office phone number?
The practice phone on file for Dr. Nussbaum is (617) 636-5000.
What is Dr. Eliezer Zachary Nussbaum's medical license number?
Dr. Nussbaum holds Massachusetts license 1013347.
Which hospitals is Dr. Eliezer Zachary Nussbaum affiliated with?
Dr. Nussbaum practices at Tufts Medical Center in Boston, Massachusetts. Dr. Nussbaum is also affiliated with Massachusetts General Hospital.
What medical group is Dr. Eliezer Zachary Nussbaum part of?
Dr. Nussbaum is linked to Pratt Medical Group, Inc. - General Medical Associates (General Internal Medicine).
Does Dr. Eliezer Zachary Nussbaum accept Medicare?
Yes. CMS data shows Dr. Nussbaum billed Medicare for 233 services in 2024, and Dr. Nussbaum accepts Medicare assignment.
Does Dr. Eliezer Zachary Nussbaum offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nussbaum as offering telehealth services.
How many Medicare patients does Dr. Eliezer Zachary Nussbaum see?
CMS counts 86 Medicare patients who saw Dr. Nussbaum in 2024, with an average age of 65.
Show 5 more questionsShow fewer questions
What services does Dr. Eliezer Zachary Nussbaum bill to Medicare?
In 2024, Dr. Nussbaum's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and medicare service (G2211).
Where did Dr. Eliezer Zachary Nussbaum go to medical school?
Dr. Nussbaum graduated from Boston University School of Medicine in 2017.
What drugs does Dr. Eliezer Zachary Nussbaum prescribe most?
In 2024 Medicare Part D data, Dr. Nussbaum's most prescribed drugs by claims were Rifampin and Dovato.
Has Dr. Eliezer Zachary Nussbaum received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Nussbaum from 1 company from 2022 to 2022. The largest total came from Melinta Therapeutics, Inc.
How long has Dr. Eliezer Zachary Nussbaum been practicing?
Dr. Nussbaum graduated from medical school in 2017, 9 years ago.
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