Dr. Bonnie J. Ryan, MD
- Medicare services, 2024
- 162
- Medicare patients, 2024
- 163
- Part D claims, 2024
- 67
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Ryan's professional email, personal email and mobile number
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Dr. Bonnie J. Ryan is an emergency medicine physician in Mendon, Massachusetts
Dr. Ryan practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Ryan's NPI, 1295725810, was assigned on October 25, 2005. Dr. Ryan graduated from University of Massachusetts Medical School in 1992. Dr. Ryan holds Massachusetts license 79384.
- NPI
- 1295725810NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446293179
- NPI enumeration date
- October 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bonnie J. Ryan practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Ryan's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Bonnie J. Ryan is affiliated with 3 sites of care and 1 medical group
Dr. Ryan's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Ryan is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Ryan to 1 more physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Bonnie J. 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 |
|---|---|
| Umass Memorial Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bonnie J. Ryan is one of 1,483 emergency medicine physicians in Massachusetts
Emergency medicine is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ryan is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Ryan
Counts of emergency medicine physicians 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. Bonnie J. Ryan billed Medicare for 162 services in 2024
CMS data shows 162 Medicare services from Dr. Ryan across 4 procedure codes in 2024, for 163 Medicare patients. Medicare paid $16,868 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: 1162024: 16240%
Dr. Ryan compared with the Massachusetts median for emergency medicine physicians, 2024
- Dr. Ryan
- Massachusetts median
- Medicare services
- 162vs 34152% below
- Medicare patients
- 163vs 33752% below
- Part D claims
- 11vs 3669% below
Medians across 1,477 emergency medicine physicians 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bonnie J. Ryan treated 163 Medicare patients in 2024, average age 68
CMS counts 163 Medicare patients who saw Dr. Ryan in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 57% are also on Medicaid. Their average risk score is 2.01, 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 68, with 50% women.
Dr. Ryan's Medicare patients by age, 2024
Dr. Ryan's Medicare patients by sex, 2024
- Women10967%
- Men5433%
Chronic conditions among Dr. Ryan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Anxiety51%
- Arthritis49%
- Mood disorders49%
- Depression46%
- Chronic kidney disease33%
- Diabetes33%
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 68
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bonnie J. Ryan wrote 67 Medicare Part D claims in 2024
In 2024, Dr. Ryan wrote 67 Medicare Part D claims for 57 patients. 90% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $489 in total drug cost. In 2019, CMS named 26 claims across 2 drugs.
Dr. Ryan's Part D claims by kind of drug, 2024
- Generic60 claims90%
- Brand-name and other7 claims10%
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
- Antibiotics51%34 of 67 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, 2019 to 2024
- 2019
- 2024
- Claims for drugs CMS names
- 2019: 262024: 1158%
Drugs named by CMS: 1 in 2024, 2 in 2019.
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. Bonnie J. Ryan scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Ryan for performance year 2024, reported through an alternative payment model (APM). Dr. Ryan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ryan's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Bonnie J. Ryan graduated from University of Massachusetts Medical School
Dr. Ryan graduated from University of Massachusetts Medical School in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Bonnie J. 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 | 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 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)Clinician Public Reporting: Overall MIPS Performance (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. Bonnie J. 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. Bonnie J. Ryan's NPI number?
Dr. Bonnie J. Ryan's NPI number is 1295725810. It was assigned on October 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Bonnie J. Ryan?
Dr. Bonnie J. Ryan is an emergency medicine physician in Mendon, Massachusetts. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Bonnie J. Ryan practice?
Dr. Ryan practices at 55 North Ave, Mendon, MA 01756. Dr. Ryan's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Ryan to 1 physician office.
What is Dr. Bonnie J. Ryan's office phone number?
The practice phone on file for Dr. Ryan is (508) 334-1000.
What is Dr. Bonnie J. Ryan's medical license number?
Dr. Ryan holds Massachusetts license 79384.
Which hospitals is Dr. Bonnie J. Ryan affiliated with?
Dr. Ryan is affiliated with UMass Memorial Medical Center - University Campus.
What medical group is Dr. Bonnie J. Ryan part of?
Dr. Ryan is linked to UMass Memorial Medical Group.
Does Dr. Bonnie J. Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 162 services in 2024, and Dr. Ryan accepts Medicare assignment.
What is Dr. Bonnie J. Ryan's MIPS score?
Dr. Ryan's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Bonnie J. Ryan see?
CMS counts 163 Medicare patients who saw Dr. Ryan in 2024, with an average age of 68.
Show 4 more questionsShow fewer questions
What services does Dr. Bonnie J. Ryan bill to Medicare?
In 2024, Dr. Ryan's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
Where did Dr. Bonnie J. Ryan go to medical school?
Dr. Ryan graduated from University of Massachusetts Medical School in 1992.
What drugs does Dr. Bonnie J. Ryan prescribe most?
In 2024 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Cefpodoxime Proxetil.
How long has Dr. Bonnie J. Ryan been practicing?
Dr. Ryan graduated from medical school in 1992, 34 years ago.
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