Dr. Laurence J. Ronan, MD
- Medicare services, 2018
- 17
- Part D claims, 2019
- 11
- Publications
- 1
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ronan'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. Laurence J. Ronan is an internist in Boston, Massachusetts
Dr. Ronan practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Ronan's NPI, 1285624957, was assigned on October 25, 2005. Dr. Ronan graduated from Harvard Medical School in 1987. Dr. Ronan holds Massachusetts license 72946.
- NPI
- 1285624957NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002880655
- NPI enumeration date
- October 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Laurence J. Ronan practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Ronan's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Laurence J. Ronan is affiliated with 5 sites of care and 2 medical groups
Dr. Ronan's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Ronan is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Ronan to 2 more group practices and clinics, 1 hospital outpatient department 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. Laurence J. Ronan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ronan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Laurence J. Ronan is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Ronan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ronan is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Ronan
Counts of internists 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. Laurence J. Ronan billed Medicare for 17 services in 2018
CMS data shows 17 Medicare services from Dr. Ronan across 1 procedure code in 2018, all of them office visits. Medicare paid $852 for them. Every service was in an office.
Dr. Ronan's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 762018: 1778%
- Lab and pathology
- 2017: 112018: 0100%
- Tests and treatments
- 2017: 132018: 0100%
Dr. Ronan compared with the Massachusetts median for internists, 2018
- Dr. Ronan
- Massachusetts median
- Medicare services
- 17vs 43196% below
- Part D claims
- 11vs 40297% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Ronan'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.
Need commercial claims for Dr. Ronan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ronan and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Laurence J. Ronan's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Ronan's median patient age at 62, with 16% women.
Dr. Ronan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women16%
- Men82%
Source: Dmand AI Patient Panel Data
Dr. Laurence J. Ronan wrote 11 Medicare Part D claims in 2019
In 2019, Dr. Ronan wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $113 in total drug cost. In 2018, CMS named 22 claims across 1 drug.
Dr. Ronan's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 222019: 1150%
Drugs named by CMS: 1 in 2019, 1 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Laurence J. Ronan takes part in Medicare
Dr. Ronan 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. Laurence J. Ronan has 1 publication on record
Dmand AI links 1 paper to Dr. Ronan in 2011. Dr. Ronan's most frequent co-authors are Thomas J. Brewer, DO, Neha Gupta, DO and Serena P. Koenig, MD.
Dr. Ronan's most frequent co-authors
Recent publications by Dr. Ronan
See who Dr. Ronan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ronan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Laurence J. Ronan graduated from Harvard Medical School
Dr. Ronan graduated from Harvard Medical School in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Laurence J. Ronan'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Laurence J. Ronan
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. Laurence J. Ronan's NPI number?
Dr. Laurence J. Ronan's NPI number is 1285624957. It was assigned on October 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Laurence J. Ronan?
Dr. Laurence J. Ronan is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Laurence J. Ronan practice?
Dr. Ronan practices at 75 Francis Street, Boston, MA 02115. Dr. Ronan's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Ronan to 2 group practices and clinics, 1 hospital outpatient department and 1 medical group.
What is Dr. Laurence J. Ronan's office phone number?
The practice phone on file for Dr. Ronan is (617) 732-5500.
What is Dr. Laurence J. Ronan's medical license number?
Dr. Ronan holds Massachusetts license 72946.
Which hospitals is Dr. Laurence J. Ronan affiliated with?
Dr. Ronan practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Ronan is also affiliated with Massachusetts General Hospital.
What medical group is Dr. Laurence J. Ronan part of?
Dr. Ronan is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Ronan to 1 more medical group.
Does Dr. Laurence J. Ronan accept Medicare?
Yes. CMS data shows Dr. Ronan billed Medicare for 17 services in 2018, and Dr. Ronan accepts Medicare assignment.
What services does Dr. Laurence J. Ronan bill to Medicare?
In 2018, Dr. Ronan's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Laurence J. Ronan go to medical school?
Dr. Ronan graduated from Harvard Medical School in 1987.
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What drugs does Dr. Laurence J. Ronan prescribe most?
In 2019 Medicare Part D data, Dr. Ronan's most prescribed drugs by claims were Lisinopril.
How long has Dr. Laurence J. Ronan been practicing?
Dr. Ronan graduated from medical school in 1987, 39 years ago.
Does Dr. Laurence J. Ronan do research?
Dmand AI links 1 publication to Dr. Ronan.
Who does Dr. Laurence J. Ronan publish with?
Dr. Ronan's most frequent co-authors are Thomas J. Brewer, DO (1 shared paper), Neha Gupta, DO (1 shared paper) and Serena P. Koenig, MD (1 shared paper).
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