Dr. Zachary Nathan Gross, MD
- Medicare services, 2024
- 1,584
- Medicare patients, 2024
- 216
- Part D claims, 2024
- 3,889
- Hospital affiliations
- 4
- Industry payments
- $5,485
- Practice address
- 400 Blue Hill Dr, Westwood, MA 02090
- Practice phone
- Call (617) 754-0730
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medical Care of Boston Management Corporation
Westwood, Massachusetts
Find Dr. Gross' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Zachary Nathan Gross is an internist in Westwood, Massachusetts
Dr. Gross practices at Medical Care of Boston Management Corporation in Westwood, Massachusetts.
Dr. Gross' NPI, 1205369527, was assigned on April 4, 2017. Dr. Gross holds Massachusetts license 282860.
- NPI
- 1205369527NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860762713
- NPI enumeration date
- April 4, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 754-0730
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary Nathan Gross practices at Medical Care of Boston Management Corporation in Westwood, Massachusetts
Dr. Gross' primary practice is Medical Care of Boston Management Corporation, at 400 Blue Hill Dr, Westwood, MA 02090 in Norfolk County. The practice phone is (617) 754-0730.
- Medical Care of Boston Management Corporation400 Blue Hill Dr, Westwood, MA 02090 · Norfolk CountyPhone(617) 754-0730
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Zachary Nathan Gross is affiliated with 12 sites of care and 6 medical groups
Dr. Gross' primary practice is Medical Care of Boston Management Corporation in Westwood, Massachusetts. Dr. Gross is also affiliated with Beth Israel Deaconess Medical Center. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center. Dmand AI also links Dr. Gross to 3 more hospitals, 5 medical groups, 3 home health agencies, 2 group practices and clinics, 1 physician office and 1 hospice, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Zachary Nathan Gross' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gross practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medical Care of Boston Management Corporation | Available with a free account |
| +11 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary Nathan Gross is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Gross' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Gross' licenses on file in 2 states: Massachusetts and Florida.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
- Florida license
Internists near Dr. Gross
Counts of internists 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. Zachary Nathan Gross billed Medicare for 1,584 services in 2024
CMS data shows 1,584 Medicare services from Dr. Gross across 17 procedure codes in 2024, for 216 Medicare patients. Medicare paid $85,812 for them. Every service was in an office.
Dr. Gross' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 3742024: 821120%
- Office and hospital visits
- 2023: 5602024: 66719%
- Lab and pathology
- 2023: 322024: 5778%
- Tests and treatments
- 2023: 742024: 3947%
Dr. Gross compared with the Massachusetts median for internists, 2024
- Dr. Gross
- Massachusetts median
- Medicare services
- 1,584vs 4313.7 times
- Medicare patients
- 216vs 19411% above
- Part D claims
- 3,279vs 4028.2 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Gross' 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. Gross and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Nathan Gross treated 216 Medicare patients in 2024, average age 74
CMS counts 216 Medicare patients who saw Dr. Gross in 2024. The largest group is 65 to 74, with 99 patients. 74% of them have high cholesterol, and 68% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gross' median patient age at 65, with 32% women.
Dr. Gross' Medicare patients by age, 2024
Dr. Gross' Medicare patients by sex, 2024
- Women8841%
- Men12859%
Chronic conditions among Dr. Gross' Medicare patients, 2024
- High cholesterol74%
- High blood pressure68%
- Arthritis40%
- Ischemic heart disease31%
- Anxiety25%
- Chronic kidney disease24%
- Atrial fibrillation19%
- Diabetes19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gross' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women32%
- Men68%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary Nathan Gross wrote 3,889 Medicare Part D claims in 2024
In 2024, Dr. Gross wrote 3,889 Medicare Part D claims for 326 patients. 89% of them were for generic drugs. CMS names the drug for 3,279 of them, across 72 drugs with 11 or more claims each, at $288,437 in total drug cost. In 2023, CMS named 2,280 claims across 60 drugs.
Dr. Gross' Part D claims by kind of drug, 2024
- Generic3,452 claims89%
- Brand-name and other437 claims11%
Dr. Gross' 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. Gross' Part D claims, 2024
- Opioids1%47 of 3,889 claims
- Antibiotics1%28 of 3,889 claims
- Antipsychotics, patients 65 and over1%27 of 3,889 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: 2,2802024: 3,27944%
Drugs named by CMS: 72 in 2024, 60 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. Zachary Nathan Gross offers telehealth to Medicare patients
Dr. Gross accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gross as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Zachary Nathan Gross received $5,485 in industry payments from 2017 to 2025
CMS Open Payments shows 12 general payments to Dr. Gross from 6 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 74% of the total. Merck Sharp & Dohme Corporation paid the most, $5,327.
General payments to Dr. Gross by program year, 2017 to 2025
General payments to Dr. Gross by kind, 2017 to 2025
- Consulting fees$4,08374%
- Travel and lodging$92717%
- Food and beverage$4759%
Companies that paid Dr. Gross the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Zachary Nathan Gross'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Zachary Nathan Gross
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. Zachary Nathan Gross' NPI number?
Dr. Zachary Nathan Gross' NPI number is 1205369527. It was assigned on April 4, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Nathan Gross?
Dr. Zachary Nathan Gross is an internist in Westwood, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Zachary Nathan Gross practice?
Dr. Gross practices at 400 Blue Hill Dr, Westwood, MA 02090. Dr. Gross' primary practice is Medical Care of Boston Management Corporation in Westwood, Massachusetts. Dmand AI also links Dr. Gross to 3 hospitals, 5 medical groups, 3 home health agencies, 2 group practices and clinics, 1 physician office and 1 hospice.
What is Dr. Zachary Nathan Gross' office phone number?
The practice phone on file for Dr. Gross is (617) 754-0730.
What is Dr. Zachary Nathan Gross' medical license number?
Dr. Gross holds Massachusetts license 282860, one of the licenses on file in 2 states.
Which states has Dr. Zachary Nathan Gross been licensed in?
Dmand AI has state licenses on file for Dr. Gross in Massachusetts and Florida.
Which hospitals is Dr. Zachary Nathan Gross affiliated with?
Dr. Gross is affiliated with Beth Israel Deaconess Medical Center. Dmand AI links Dr. Gross to 3 more hospitals.
What medical group is Dr. Zachary Nathan Gross part of?
Dr. Gross is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center. Dmand AI links Dr. Gross to 5 more medical groups.
Does Dr. Zachary Nathan Gross accept Medicare?
Yes. CMS data shows Dr. Gross billed Medicare for 1,584 services in 2024, and Dr. Gross accepts Medicare assignment.
Does Dr. Zachary Nathan Gross offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gross as offering telehealth services.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Zachary Nathan Gross see?
CMS counts 216 Medicare patients who saw Dr. Gross in 2024, with an average age of 74.
What services does Dr. Zachary Nathan Gross bill to Medicare?
In 2024, Dr. Gross' most billed Medicare services were medicare service (G2211), office visit, established patient (99213) and office visit, established patient (99214).
What drugs does Dr. Zachary Nathan Gross prescribe most?
In 2024 Medicare Part D data, Dr. Gross' most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
Has Dr. Zachary Nathan Gross received payments from drug or device companies?
CMS Open Payments shows $5,485 in general payments to Dr. Gross from 6 companies from 2017 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Zachary Nathan Gross been practicing?
Dr. Gross graduated from medical school in 2016, 10 years ago.
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