Ellen A. Slawsby, PhD
- Medicare patients, 2024
- 32
- Affiliated sites
- 3
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 151 Merrimac St, Boston, MA 02114
- Practice phone
- Call (617) 724-0287
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Massachusetts General Physicians Organization Inc
Boston, Massachusetts
Find Ellen Slawsby'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.
Ellen A. Slawsby is a psychologist in Boston, Massachusetts
Ellen Slawsby practices at Massachusetts General Physicians Organization Inc in Boston, Massachusetts.
Ellen Slawsby's NPI, 1477666329, was assigned on August 16, 2006. Ellen Slawsby holds Massachusetts license 7159.
- NPI
- 1477666329NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264438092
- NPI enumeration date
- August 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 724-0287
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Ellen A. Slawsby practices at Massachusetts General Physicians Organization Inc in Boston, Massachusetts
Ellen Slawsby's primary practice is Massachusetts General Physicians Organization Inc, at 151 Merrimac St, Boston, MA 02114 in Suffolk County. The practice phone is (617) 724-0287.
- Massachusetts General Physicians Organization Inc151 Merrimac St, Boston, MA 02114 · Suffolk CountyPhone(617) 724-0287
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Ellen A. Slawsby is affiliated with 4 sites of care and 2 medical groups
Ellen Slawsby's primary practice is Massachusetts General Physicians Organization Inc in Boston, Massachusetts. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Ellen Slawsby to 2 more group practices and clinics, 1 physician office and 1 medical group, 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 Ellen A. Slawsby's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ellen Slawsby practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Physicians Organization Inc | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Ellen A. Slawsby is one of 605 psychologists in Massachusetts
Psychologist is Ellen Slawsby's primary specialty in the NPI Registry, under taxonomy code 103T00000X. Ellen Slawsby is licensed in Massachusetts.
Specialties and state licenses
- Psychologist, MassachusettsPrimary
Psychologists near Ellen Slawsby
Counts of psychologists 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
Ellen A. Slawsby treated 32 Medicare patients in 2024, average age 63
CMS counts 32 Medicare patients who saw Ellen Slawsby in 2024. The largest group is under 65, with 16 patients. 75% of them have anxiety, and 75% have mood disorders. 53% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ellen Slawsby's median patient age at 49, with 64% women.
Ellen Slawsby's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Ellen Slawsby's Medicare patients by sex, 2024
- Women1856%
- Men1444%
Chronic conditions among Ellen Slawsby's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- Depression69%
- High blood pressure50%
- Arthritis47%
- High cholesterol47%
Share of Medicare patients with each condition. A patient can have several.
Ellen Slawsby's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ellen A. Slawsby offers telehealth to Medicare patients
Ellen Slawsby accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Ellen Slawsby as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Ellen A. Slawsby'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 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) |
| 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 Ellen A. Slawsby
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ellen A. Slawsby's NPI number?
Ellen A. Slawsby's NPI number is 1477666329. It was assigned on August 16, 2006, and it is active in the NPI Registry.
What does Ellen A. Slawsby specialize in?
Ellen A. Slawsby is a psychologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).
Where does Ellen A. Slawsby practice?
Ellen Slawsby practices at 151 Merrimac St, Boston, MA 02114. Ellen Slawsby's primary practice is Massachusetts General Physicians Organization Inc in Boston, Massachusetts. Dmand AI also links Ellen Slawsby to 2 group practices and clinics, 1 physician office and 1 medical group.
What is Ellen A. Slawsby's office phone number?
The practice phone on file for Ellen Slawsby is (617) 724-0287.
What is Ellen A. Slawsby's medical license number?
Ellen Slawsby holds Massachusetts license 7159.
What medical group is Ellen A. Slawsby part of?
Ellen Slawsby is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Ellen Slawsby to 1 more medical group.
Does Ellen A. Slawsby accept Medicare?
Yes. CMS lists Ellen Slawsby as accepting Medicare assignment.
Does Ellen A. Slawsby offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Ellen Slawsby as offering telehealth services.
How many Medicare patients does Ellen A. Slawsby see?
CMS counts 32 Medicare patients who saw Ellen Slawsby in 2024, with an average age of 63.
How long has Ellen A. Slawsby been practicing?
Ellen Slawsby graduated from medical school in 1995, 31 years ago.
Selling to psychologist practices?
See psychologists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card