Dr. Nathaniel R. Greenbaum, MD
- Medicare services, 2024
- 78
- Medicare patients, 2024
- 199
- Publications
- 5
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 330 Brookline Avenue, Boston, MA 02215
- Practice phone
- Call (617) 667-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Nathaniel R. Greenbaum is an anesthesiologist in Boston, Massachusetts
Dr. Greenbaum practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health.
Dr. Greenbaum's NPI, 1952832206, was assigned on March 27, 2017. Dr. Greenbaum holds Massachusetts license 286819.
- NPI
- 1952832206NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032510839
- NPI enumeration date
- March 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 667-7000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathaniel R. Greenbaum practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts
Dr. Greenbaum's primary practice is Beth Israel Deaconess Medical Center, at 330 Brookline Avenue, Boston, MA 02215 in Suffolk County. The practice phone is (617) 667-7000.
- Beth Israel Deaconess Medical Center330 Brookline Avenue, Boston, MA 02215 · Suffolk CountyPhone(617) 667-7000
Source: Dmand AI Affiliation Data
Dr. Nathaniel R. Greenbaum is affiliated with 1 site of care and 2 medical groups
Dr. Greenbaum's primary practice is Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Greenbaum to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nathaniel R. Greenbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenbaum practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Beth Israel Deaconess Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathaniel R. Greenbaum is one of 1,552 anesthesiologists in Massachusetts
Anesthesiology is Dr. Greenbaum's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Greenbaum is licensed in Massachusetts.
Specialties and state licenses
- Anesthesiology, MassachusettsPrimary
Anesthesiologists near Dr. Greenbaum
Counts of anesthesiologists 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. Nathaniel R. Greenbaum billed Medicare for 78 services in 2024
CMS data shows 78 Medicare services from Dr. Greenbaum across 3 procedure codes in 2024, for 199 Medicare patients. Medicare paid $6,681 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Greenbaum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 732024: 787%
Dr. Greenbaum compared with the Massachusetts median for anesthesiologists, 2024
- Dr. Greenbaum
- Massachusetts median
- Medicare services
- 78vs 12638% below
- Medicare patients
- 199vs 200Close to median
Medians across 1,366 anesthesiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Greenbaum'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.
Need commercial claims for Dr. Greenbaum?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greenbaum and other anesthesiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathaniel R. Greenbaum treated 199 Medicare patients in 2024, average age 73
CMS counts 199 Medicare patients who saw Dr. Greenbaum in 2024. The largest group is 65 to 74, with 87 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.73, 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. Greenbaum's median patient age at 64, with 55% women.
Dr. Greenbaum's Medicare patients by age, 2024
Dr. Greenbaum's Medicare patients by sex, 2024
- Women10553%
- Men9447%
Chronic conditions among Dr. Greenbaum's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Mood disorders44%
- Depression41%
- Anxiety38%
- Diabetes38%
- Ischemic heart disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greenbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Nathaniel R. Greenbaum takes part in Medicare
Dr. Greenbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nathaniel R. Greenbaum has 5 publications on record
Dmand AI links 5 papers to Dr. Greenbaum, published from 2019 to 2024. 2019 was the busiest year, with 3. The most frequent topics are Algorithms and Emergency Service, Hospital. Dr. Greenbaum's most frequent co-authors are Larry Nathanson, MD, Seth Joshua Berkowitz and Geraldine C. Diaz, DO.
Dr. Greenbaum's papers by year, 2019 to 2024
Topics Dr. Greenbaum writes about most
- Algorithms
- Emergency Service, Hospital
Dr. Greenbaum's most frequent co-authors
- Larry Nathanson, MD2 shared papers
- Seth Joshua Berkowitz1 shared paper
- Geraldine C. Diaz, DO1 shared paper
Recent publications by Dr. Greenbaum
See who Dr. Greenbaum researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greenbaum works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Nathaniel R. Greenbaum'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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. Nathaniel R. Greenbaum
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. Nathaniel R. Greenbaum's NPI number?
Dr. Nathaniel R. Greenbaum's NPI number is 1952832206. It was assigned on March 27, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathaniel R. Greenbaum?
Dr. Nathaniel R. Greenbaum is an anesthesiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Nathaniel R. Greenbaum practice?
Dr. Greenbaum practices at 330 Brookline Avenue, Boston, MA 02215. Dr. Greenbaum's primary practice is Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Greenbaum to 1 medical group.
What is Dr. Nathaniel R. Greenbaum's office phone number?
The practice phone on file for Dr. Greenbaum is (617) 667-7000.
What is Dr. Nathaniel R. Greenbaum's medical license number?
Dr. Greenbaum holds Massachusetts license 286819.
Which hospitals is Dr. Nathaniel R. Greenbaum affiliated with?
Dr. Greenbaum practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts.
What medical group is Dr. Nathaniel R. Greenbaum part of?
Dr. Greenbaum is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Greenbaum to 1 more medical group.
Does Dr. Nathaniel R. Greenbaum accept Medicare?
Yes. CMS data shows Dr. Greenbaum billed Medicare for 78 services in 2024, and Dr. Greenbaum accepts Medicare assignment.
How many Medicare patients does Dr. Nathaniel R. Greenbaum see?
CMS counts 199 Medicare patients who saw Dr. Greenbaum in 2024, with an average age of 73.
What services does Dr. Nathaniel R. Greenbaum bill to Medicare?
In 2024, Dr. Greenbaum's most billed Medicare services were anesthesia (00731), anesthesia (00104) and anesthesia (00811).
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How long has Dr. Nathaniel R. Greenbaum been practicing?
Dr. Greenbaum graduated from medical school in 2016, 10 years ago.
Does Dr. Nathaniel R. Greenbaum do research?
Dmand AI links 5 publications to Dr. Greenbaum, published from 2019 to 2024.
Who does Dr. Nathaniel R. Greenbaum publish with?
Dr. Greenbaum's most frequent co-authors are Larry Nathanson, MD (2 shared papers), Seth Joshua Berkowitz (1 shared paper) and Geraldine C. Diaz, DO (1 shared paper).
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