Dr. William Ephraim Greenberg, MD
- Medicare services, 2018
- 11
- Part D claims, 2020
- 16
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Practice address
- 148 Chestnut St, Needham, MA 02492
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD
Acute Care Hospital outpatient department · Needham, Massachusetts
Find Dr. Greenberg's 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. William Ephraim Greenberg is a psychiatrist in Needham, Massachusetts
Dr. Greenberg practices at The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts.
Dr. Greenberg's NPI, 1265481527, was assigned on May 6, 2006. Dr. Greenberg graduated from Perelman School of Med at the University of Pennsylvania in 1976. Dr. Greenberg holds Massachusetts license 42635.
- NPI
- 1265481527NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658401948
- NPI enumeration date
- May 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Ephraim Greenberg practices at The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts
Dr. Greenberg's primary practice is The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD, at 148 Chestnut St, Needham, MA 02492.
- The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD148 Chestnut St, Needham, MA 02492
Source: Dmand AI Affiliation Data
Dr. William Ephraim Greenberg is affiliated with 2 sites of care and 2 medical groups
Dr. Greenberg's primary practice is The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts. Dr. Greenberg 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 (HMFP). Dmand AI also links Dr. Greenberg to 1 more medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William Ephraim Greenberg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenberg practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Ephraim Greenberg is one of 1,857 psychiatrists in Massachusetts
Psychiatry is Dr. Greenberg's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Greenberg is licensed in Massachusetts.
Specialties and state licenses
- Psychiatry, MassachusettsPrimary
Psychiatrists near Dr. Greenberg
Counts of psychiatrists 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. William Ephraim Greenberg billed Medicare for 11 services in 2018
CMS data shows 11 Medicare services from Dr. Greenberg across 1 procedure code in 2018. Medicare paid $1,276 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Greenberg's Medicare services by type, 2016 to 2018
- 2016
- 2018
- Tests and treatments
- 2016: 112018: 11No change
Dr. Greenberg compared with the Massachusetts median for psychiatrists, 2018
- Dr. Greenberg
- Massachusetts median
- Medicare services
- 11vs 17294% below
- Part D claims
- 16vs 9283% below
Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Greenberg's most billed Medicare procedure codes, 2018
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. Greenberg and other psychiatrists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Ephraim Greenberg's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Dr. Greenberg's median patient age at 48, with 56% women.
Dr. Greenberg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. William Ephraim Greenberg wrote 16 Medicare Part D claims in 2020
In 2020, Dr. Greenberg wrote 16 Medicare Part D claims. They cover 1 drug, with $217 in total drug cost. In 2019, CMS named 14 claims across 1 drug.
Dr. Greenberg's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 142020: 1614%
Drugs named by CMS: 1 in 2020, 1 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. William Ephraim Greenberg takes part in Medicare
Dr. Greenberg 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. William Ephraim Greenberg graduated from Perelman School of Med at the University of Pennsylvania
Dr. Greenberg graduated from Perelman School of Med at the University of Pennsylvania in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Ephraim Greenberg'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 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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. William Ephraim Greenberg
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. William Ephraim Greenberg's NPI number?
Dr. William Ephraim Greenberg's NPI number is 1265481527. It was assigned on May 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Ephraim Greenberg?
Dr. William Ephraim Greenberg is a psychiatrist in Needham, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. William Ephraim Greenberg practice?
Dr. Greenberg practices at 148 Chestnut St, Needham, MA 02492. Dr. Greenberg's primary practice is The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts. Dmand AI also links Dr. Greenberg to 1 medical group.
What is Dr. William Ephraim Greenberg's medical license number?
Dr. Greenberg holds Massachusetts license 42635.
Which hospitals is Dr. William Ephraim Greenberg affiliated with?
Dr. Greenberg is affiliated with Beth Israel Deaconess Medical Center.
What medical group is Dr. William Ephraim Greenberg part of?
Dr. Greenberg is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Greenberg to 1 more medical group.
Does Dr. William Ephraim Greenberg accept Medicare?
Yes. CMS data shows Dr. Greenberg billed Medicare for 11 services in 2018, and Dr. Greenberg accepts Medicare assignment.
What services does Dr. William Ephraim Greenberg bill to Medicare?
In 2018, Dr. Greenberg's most billed Medicare services were psychiatric service (90792).
Where did Dr. William Ephraim Greenberg go to medical school?
Dr. Greenberg graduated from Perelman School of Med at the University of Pennsylvania in 1976.
What drugs does Dr. William Ephraim Greenberg prescribe most?
In 2020 Medicare Part D data, Dr. Greenberg's most prescribed drugs by claims were Venlafaxine HCl ER.
How long has Dr. William Ephraim Greenberg been practicing?
Dr. Greenberg graduated from medical school in 1976, 50 years ago.
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