Dr. Lauren Michal De Leon, MD
- Medicare services, 2024
- 908
- Medicare patients, 2024
- 304
- Part D claims, 2024
- 4,094
- Hospital affiliations
- 5
- 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
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Dr. Lauren Michal De Leon is an internist in Boston, Massachusetts
Dr. De Leon practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. De Leon's NPI, 1205154523, was assigned on May 11, 2010. Dr. De Leon holds Rhode Island license MD14240.
- NPI
- 1205154523NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002050812
- NPI enumeration date
- May 11, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lauren Michal De Leon practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. De Leon'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. Lauren Michal De Leon is affiliated with 9 sites of care and 2 medical groups
Dr. De Leon's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. De Leon is also affiliated with Newton-Wellesley Hospital. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. De Leon to 3 more hospitals, 3 home health agencies, 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. Lauren Michal De Leon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. De Leon practices, 9 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 |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lauren Michal De Leon is one of 5,528 internists in Massachusetts
Internal medicine is Dr. De Leon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. De Leon is licensed in Rhode Island.
Specialties and state licenses
- Internal medicine, Rhode IslandPrimary
Internists near Dr. De Leon
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. Lauren Michal De Leon billed Medicare for 908 services in 2024
CMS data shows 908 Medicare services from Dr. De Leon across 13 procedure codes in 2024, for 304 Medicare patients. Medicare paid $76,057 for them. Every service was in an office.
Dr. De Leon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4632024: 4454%
- Other services
- 2023: 2112024: 35066%
- Tests and treatments
- 2023: 832024: 11336%
Dr. De Leon compared with the Massachusetts median for internists, 2024
- Dr. De Leon
- Massachusetts median
- Medicare services
- 908vs 4312.1 times
- Medicare patients
- 304vs 19457% above
- Part D claims
- 3,447vs 4028.6 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. De Leon'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. Lauren Michal De Leon treated 304 Medicare patients in 2024, average age 74
CMS counts 304 Medicare patients who saw Dr. De Leon in 2024. The largest group is 65 to 74, with 161 patients. 63% of them have high cholesterol, and 62% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. De Leon's median patient age at 67, with 71% women.
Dr. De Leon's Medicare patients by age, 2024
Dr. De Leon's Medicare patients by sex, 2024
- Women21169%
- Men9331%
Chronic conditions among Dr. De Leon's Medicare patients, 2024
- High cholesterol63%
- High blood pressure62%
- Arthritis47%
- Anxiety20%
- Chronic kidney disease20%
- Cancer19%
- Diabetes19%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. De Leon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women71%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lauren Michal De Leon wrote 4,094 Medicare Part D claims in 2024
In 2024, Dr. De Leon wrote 4,094 Medicare Part D claims for 420 patients. 88% of them were for generic drugs. CMS names the drug for 3,447 of them, across 82 drugs with 11 or more claims each, at $219,773 in total drug cost. In 2023, CMS named 2,134 claims across 53 drugs.
Dr. De Leon's Part D claims by kind of drug, 2024
- Generic3,616 claims88%
- Brand-name457 claims11%
- Other21 claims1%
Dr. De Leon'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. De Leon's Part D claims, 2024
- Opioids1%54 of 4,094 claims
- Antibiotics2%90 of 4,094 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: 2,1342024: 3,44762%
Drugs named by CMS: 82 in 2024, 53 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
Dr. Lauren Michal De Leon offers telehealth to Medicare patients
Dr. De Leon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. De Leon as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Lauren Michal De Leon'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) |
| 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. Lauren Michal De Leon
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. Lauren Michal De Leon's NPI number?
Dr. Lauren Michal De Leon's NPI number is 1205154523. It was assigned on May 11, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Lauren Michal De Leon?
Dr. Lauren Michal De Leon is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lauren Michal De Leon practice?
Dr. De Leon practices at 75 Francis Street, Boston, MA 02115. Dr. De Leon's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. De Leon to 3 hospitals, 3 home health agencies, 1 hospital outpatient department and 1 medical group.
What is Dr. Lauren Michal De Leon's office phone number?
The practice phone on file for Dr. De Leon is (617) 732-5500.
What is Dr. Lauren Michal De Leon's medical license number?
Dr. De Leon holds Rhode Island license MD14240.
Which hospitals is Dr. Lauren Michal De Leon affiliated with?
Dr. De Leon practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. De Leon is also affiliated with Newton-Wellesley Hospital. Dmand AI links Dr. De Leon to 3 more hospitals.
What medical group is Dr. Lauren Michal De Leon part of?
Dr. De Leon is linked to Brigham and Women's Hospital. Dmand AI links Dr. De Leon to 1 more medical group.
Does Dr. Lauren Michal De Leon accept Medicare?
Yes. CMS data shows Dr. De Leon billed Medicare for 908 services in 2024, and Dr. De Leon accepts Medicare assignment.
Does Dr. Lauren Michal De Leon offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. De Leon as offering telehealth services.
How many Medicare patients does Dr. Lauren Michal De Leon see?
CMS counts 304 Medicare patients who saw Dr. De Leon in 2024, with an average age of 74.
Show 3 more questionsShow fewer questions
What services does Dr. Lauren Michal De Leon bill to Medicare?
In 2024, Dr. De Leon's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and office visit, established patient (99214).
What drugs does Dr. Lauren Michal De Leon prescribe most?
In 2024 Medicare Part D data, Dr. De Leon's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Lisinopril.
How long has Dr. Lauren Michal De Leon been practicing?
Dr. De Leon graduated from medical school in 2010, 16 years ago.
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