Dr. Daniel Boaz Zandman, MD
- Medicare services, 2024
- 851
- Medicare patients, 2024
- 511
- Part D claims, 2024
- 1,057
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 330 Mount Auburn Street, Cambridge, MA 02138
- Practice phone
- Call (617) 492-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zandman's professional email, personal email and mobile number
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Dr. Daniel Boaz Zandman is a gastroenterologist in Cambridge, Massachusetts
Dr. Zandman practices at Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health.
Dr. Zandman's NPI, 1780842955, was assigned on May 23, 2008. Dr. Zandman graduated from Icahn School of Medicine at Mount Sinai in 2007. Dr. Zandman holds Massachusetts license 254475.
- NPI
- 1780842955NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749422277
- NPI enumeration date
- May 23, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 492-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Boaz Zandman practices at Mount Auburn Hospital in Cambridge, Massachusetts
Dr. Zandman's primary practice is Mount Auburn Hospital, at 330 Mount Auburn Street, Cambridge, MA 02138 in Middlesex County. The practice phone is (617) 492-3500.
- Mount Auburn Hospital330 Mount Auburn Street, Cambridge, MA 02138 · Middlesex CountyPhone(617) 492-3500
Source: Dmand AI Affiliation Data
Dr. Daniel Boaz Zandman is affiliated with 3 sites of care and 2 medical groups
Dr. Zandman's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. Dr. Zandman is also affiliated with Beth Israel Deaconess Medical Center. The medical group on file is Mount Auburn Professional Services. Dmand AI also links Dr. Zandman to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel Boaz Zandman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zandman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Auburn Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Daniel Boaz Zandman is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Zandman's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Zandman is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Zandman
Counts of gastroenterologists 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. Daniel Boaz Zandman billed Medicare for 851 services in 2024
CMS data shows 851 Medicare services from Dr. Zandman across 19 procedure codes in 2024, for 511 Medicare patients. Medicare paid $96,395 for them.
Dr. Zandman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2712024: 37438%
- Office and hospital visits
- 2023: 3752024: 3507%
- Other services
- 2023: 1072024: 1125%
- Tests and treatments
- 2023: 222024: 1532%
Where Dr. Zandman's Medicare services took place, 2024
- In an office24329%
- In a facility60871%
Dr. Zandman compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Zandman
- Massachusetts median
- Medicare services
- 851vs 51964% above
- Medicare patients
- 511vs 34349% above
- Part D claims
- 927vs 3003.1 times
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Zandman'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Boaz Zandman treated 511 Medicare patients in 2024, average age 75
CMS counts 511 Medicare patients who saw Dr. Zandman in 2024. The largest group is 65 to 74, with 239 patients. 70% of them have high cholesterol, and 63% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zandman's median patient age at 68, with 44% women.
Dr. Zandman's Medicare patients by age, 2024
Dr. Zandman's Medicare patients by sex, 2024
- Women25951%
- Men25249%
Chronic conditions among Dr. Zandman's Medicare patients, 2024
- High cholesterol70%
- High blood pressure63%
- Arthritis44%
- Mood disorders30%
- Anxiety29%
- Depression26%
- Diabetes23%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zandman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Boaz Zandman wrote 1,057 Medicare Part D claims in 2024
In 2024, Dr. Zandman wrote 1,057 Medicare Part D claims for 449 patients. 81% of them were for generic drugs. CMS names the drug for 927 of them, across 20 drugs with 11 or more claims each, at $873,636 in total drug cost. In 2023, CMS named 645 claims across 15 drugs.
Dr. Zandman's Part D claims by kind of drug, 2024
- Generic856 claims81%
- Brand-name and other201 claims19%
Dr. Zandman'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. Zandman's Part D claims, 2024
- Opioids1%14 of 1,057 claims
- Antibiotics1%12 of 1,057 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6452024: 92744%
Drugs named by CMS: 20 in 2024, 15 in 2023.
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. Daniel Boaz Zandman ranks in the 79th percentile for colonoscopy in Medicare
Dr. Zandman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zandman as offering telehealth. CMS counts 98 procedures of colonoscopy by Dr. Zandman, more than 79% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Zandman ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 77th percentile104 procedures
- Colonoscopy
- 79th percentile98 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Daniel Boaz Zandman has 1 publication on record
Dmand AI links 1 paper to Dr. Zandman in 2013. Dr. Zandman's most frequent co-author is William Chun Hahn, MD, PhD.
Dr. Zandman's most frequent co-authors
Recent publications by Dr. Zandman
See who Dr. Zandman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zandman works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel Boaz Zandman received $17,084 in industry payments from 2016 to 2025
CMS Open Payments shows 441 general payments to Dr. Zandman from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 51% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $7,813.
General payments to Dr. Zandman by program year, 2016 to 2025
General payments to Dr. Zandman by kind, 2016 to 2025
- Food and beverage$8,63051%
- Consulting fees$7,31143%
- Travel and lodging$5973%
- Gifts$4833%
- Education$620%
Companies that paid Dr. Zandman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Boaz Zandman graduated from Icahn School of Medicine at Mount Sinai
Dr. Zandman graduated from Icahn School of Medicine at Mount Sinai in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Boaz Zandman'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Daniel Boaz Zandman
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. Daniel Boaz Zandman's NPI number?
Dr. Daniel Boaz Zandman's NPI number is 1780842955. It was assigned on May 23, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Boaz Zandman?
Dr. Daniel Boaz Zandman is a gastroenterologist in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Daniel Boaz Zandman practice?
Dr. Zandman practices at 330 Mount Auburn Street, Cambridge, MA 02138. Dr. Zandman's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Zandman to 1 group practice or clinic and 1 medical group.
What is Dr. Daniel Boaz Zandman's office phone number?
The practice phone on file for Dr. Zandman is (617) 492-3500.
What is Dr. Daniel Boaz Zandman's medical license number?
Dr. Zandman holds Massachusetts license 254475.
Which hospitals is Dr. Daniel Boaz Zandman affiliated with?
Dr. Zandman practices at Mount Auburn Hospital in Cambridge, Massachusetts. Dr. Zandman is also affiliated with Beth Israel Deaconess Medical Center.
What medical group is Dr. Daniel Boaz Zandman part of?
Dr. Zandman is linked to Mount Auburn Professional Services. Dmand AI links Dr. Zandman to 1 more medical group.
Does Dr. Daniel Boaz Zandman accept Medicare?
Yes. CMS data shows Dr. Zandman billed Medicare for 851 services in 2024, and Dr. Zandman accepts Medicare assignment.
Does Dr. Daniel Boaz Zandman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zandman as offering telehealth services.
How many Medicare patients does Dr. Daniel Boaz Zandman see?
CMS counts 511 Medicare patients who saw Dr. Zandman in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. Daniel Boaz Zandman bill to Medicare?
In 2024, Dr. Zandman's most billed Medicare services were surgery: digestive system (45385), office visit, established patient (99214) and hospital inpatient care (99232).
Where did Dr. Daniel Boaz Zandman go to medical school?
Dr. Zandman graduated from Icahn School of Medicine at Mount Sinai in 2007.
What drugs does Dr. Daniel Boaz Zandman prescribe most?
In 2024 Medicare Part D data, Dr. Zandman's most prescribed drugs by claims were Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf and Mesalamine.
Has Dr. Daniel Boaz Zandman received payments from drug or device companies?
CMS Open Payments shows $17,084 in general payments to Dr. Zandman from 27 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Daniel Boaz Zandman been practicing?
Dr. Zandman graduated from medical school in 2007, 19 years ago.
Does Dr. Daniel Boaz Zandman do research?
Dmand AI links 1 publication to Dr. Zandman.
Who does Dr. Daniel Boaz Zandman publish with?
Dr. Zandman's most frequent co-authors are William Chun Hahn, MD, PhD (1 shared paper).
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