Dr. Edward Thomas Ryan, MD
- Medicare services, 2024
- 277
- Medicare patients, 2024
- 91
- Part D claims, 2024
- 50
- Publications
- 237
- Hospital affiliations
- 1
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ryan'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. Edward Thomas Ryan is an infectious disease specialist in Boston, Massachusetts
Dr. Ryan practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Ryan's NPI, 1255321022, was assigned on October 24, 2005. Dr. Ryan graduated from Harvard Medical School in 1988. Dr. Ryan holds Massachusetts license 72191.
- NPI
- 1255321022NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739136359
- NPI enumeration date
- October 24, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Edward Thomas Ryan practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Ryan's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Edward Thomas Ryan is affiliated with 2 sites of care and 2 medical groups
Dr. Ryan's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Ryan to 1 more community health center 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. Edward Thomas Ryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +1 more site 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 Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Edward Thomas Ryan is one of 395 infectious disease specialists in Massachusetts
Infectious disease is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Ryan is licensed in Massachusetts.
Specialties and state licenses
- Infectious disease, MassachusettsPrimary
Infectious disease specialists near Dr. Ryan
Counts of infectious disease specialists 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. Edward Thomas Ryan billed Medicare for 277 services in 2024
CMS data shows 277 Medicare services from Dr. Ryan across 4 procedure codes in 2024, for 91 Medicare patients. Medicare paid $25,276 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ryan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1982024: 27740%
Dr. Ryan compared with the Massachusetts median for infectious disease specialists, 2024
- Dr. Ryan
- Massachusetts median
- Medicare services
- 277vs 16370% above
- Medicare patients
- 91vs 94Close to median
- Part D claims
- 14vs 10887% below
Medians across 363 infectious disease specialists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Ryan'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. Ryan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ryan and other infectious disease specialists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Edward Thomas Ryan treated 91 Medicare patients in 2024, average age 72
CMS counts 91 Medicare patients who saw Dr. Ryan in 2024. The largest group is 65 to 74, with 36 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 3.39, 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. Ryan's median patient age at 61, with 49% women.
Dr. Ryan's Medicare patients by age, 2024
Dr. Ryan's Medicare patients by sex, 2024
- Women2932%
- Men6268%
Chronic conditions among Dr. Ryan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease66%
- Mood disorders62%
- Depression60%
- Chronic kidney disease59%
- Arthritis58%
- Atrial fibrillation55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Edward Thomas Ryan wrote 50 Medicare Part D claims in 2024
In 2024, Dr. Ryan wrote 50 Medicare Part D claims for 19 patients. 82% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $86 in total drug cost. In 2023, CMS named 36 claims across 2 drugs.
Dr. Ryan's Part D claims by kind of drug, 2024
- Generic41 claims82%
- Brand-name and other9 claims18%
Dr. Ryan'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. Ryan's Part D claims, 2024
- Antibiotics60%30 of 50 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: 362024: 1461%
Drugs named by CMS: 1 in 2024, 2 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
How Dr. Edward Thomas Ryan takes part in Medicare
Dr. Ryan 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Edward Thomas Ryan has 237 publications on record
Dmand AI links 237 papers to Dr. Ryan, published from 2010 to 2025. 2020 was the busiest year, with 24. The most frequent topics are Cholera, Antibodies, Bacterial and Bangladesh. Dr. Ryan has published most often in PLoS Negl Trop Dis. Dr. Ryan's most frequent co-authors are Regina Celeste Larocque, MD, MPH, Jason B. Harris, MD and Ana A. Weil, MD, MPH.
Dr. Ryan's papers by year, 2016 to 2025
Topics Dr. Ryan writes about most
- Cholera
- Antibodies, Bacterial
- Bangladesh
- Immunoglobulin G
- Cholera Vaccines
- Vibrio cholerae O1
- Immunoglobulin A
- Vaccination
Dr. Ryan's most frequent co-authors
- Regina Celeste Larocque, MD, MPH122 shared papers
- Jason B. Harris, MD45 shared papers
- Ana A. Weil, MD, MPH25 shared papers
Recent publications by Dr. Ryan
See who Dr. Ryan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ryan works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Edward Thomas Ryan received $8,227 in industry payments in 2016
CMS Open Payments shows 8 general payments to Dr. Ryan from 1 drug or device company in 2016. Travel and lodging make up the largest share, 97% of the total. Becton, Dickinson and Company paid the most, $8,227.
General payments to Dr. Ryan by kind, 2016 to 2016
- Travel and lodging$8,00497%
- Food and beverage$2233%
Companies that paid Dr. Ryan the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Edward Thomas Ryan graduated from Harvard Medical School
Dr. Ryan graduated from Harvard Medical School in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Edward Thomas Ryan'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) |
| 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. Edward Thomas Ryan
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. Edward Thomas Ryan's NPI number?
Dr. Edward Thomas Ryan's NPI number is 1255321022. It was assigned on October 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Edward Thomas Ryan?
Dr. Edward Thomas Ryan is an infectious disease specialist in Boston, Massachusetts. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Edward Thomas Ryan practice?
Dr. Ryan practices at 55 Fruit Street, Boston, MA 02114. Dr. Ryan's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Ryan to 1 community health center and 1 medical group.
What is Dr. Edward Thomas Ryan's office phone number?
The practice phone on file for Dr. Ryan is (617) 726-2000.
What is Dr. Edward Thomas Ryan's medical license number?
Dr. Ryan holds Massachusetts license 72191.
Which hospitals is Dr. Edward Thomas Ryan affiliated with?
Dr. Ryan practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Edward Thomas Ryan part of?
Dr. Ryan is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Ryan to 1 more medical group.
Does Dr. Edward Thomas Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 277 services in 2024, and Dr. Ryan accepts Medicare assignment.
How many Medicare patients does Dr. Edward Thomas Ryan see?
CMS counts 91 Medicare patients who saw Dr. Ryan in 2024, with an average age of 72.
What services does Dr. Edward Thomas Ryan bill to Medicare?
In 2024, Dr. Ryan's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Show 6 more questionsShow fewer questions
Where did Dr. Edward Thomas Ryan go to medical school?
Dr. Ryan graduated from Harvard Medical School in 1988.
What drugs does Dr. Edward Thomas Ryan prescribe most?
In 2024 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Azithromycin.
Has Dr. Edward Thomas Ryan received payments from drug or device companies?
CMS Open Payments shows $8,227 in general payments to Dr. Ryan from 1 company from 2016 to 2016. The largest total came from Becton, Dickinson and Company.
How long has Dr. Edward Thomas Ryan been practicing?
Dr. Ryan graduated from medical school in 1988, 38 years ago.
Does Dr. Edward Thomas Ryan do research?
Dmand AI links 237 publications to Dr. Ryan, published from 2010 to 2025.
Who does Dr. Edward Thomas Ryan publish with?
Dr. Ryan's most frequent co-authors are Regina Celeste Larocque, MD, MPH (122 shared papers), Jason B. Harris, MD (45 shared papers) and Ana A. Weil, MD, MPH (25 shared papers).
Selling to infectious disease practices?
See infectious disease specialists 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