Colorectal NeoplasmsDecision Making, SharedEarly Detection of Cancer
Dr. Lydia C. Siegel, MD, MPH
NPI1003892001PAC ID6608874912
- Medicare services, 2024
- 78
- Medicare patients, 2024
- 49
- Part D claims, 2024
- 188
- Publications
- 4
- Hospital affiliations
- 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. Siegel'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. Lydia C. Siegel is an internist in Boston, Massachusetts
Dr. Siegel practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Siegel's NPI, 1003892001, was assigned on December 21, 2005. Dr. Siegel holds Massachusetts license 226444.
NPI and contact details
- NPI
- 1003892001NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608874912
- NPI enumeration date
- December 21, 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
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lydia C. Siegel practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Siegel'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. Lydia C. Siegel is affiliated with 3 sites of care and 1 medical group
Dr. Siegel's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Siegel is also affiliated with Brigham and Women's Faulkner Hospital. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Siegel to 1 more hospital outpatient department, named with a free account. Dr. Siegel's employer is on file too: a hospital.
Brigham and Women's Faulkner HospitalBrigham and Women's Hospital1 hospital outpatient departmentName with a free accountEmployer: hospitalName with a free account
See all 4 affiliations for Dr. SiegelSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lydia C. Siegel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siegel practices, 3 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 |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lydia C. Siegel is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Siegel's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Siegel is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Siegel
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
5,528internists in Massachusetts1,712internists in Boston299internists at Brigham and Women's Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lydia C. Siegel billed Medicare for 78 services in 2024
CMS data shows 78 Medicare services from Dr. Siegel across 3 procedure codes in 2024, for 49 Medicare patients. Medicare paid $5,538 for them. Every service was in an office.
Medicare services, 202478
Medicare patients49
Paid by Medicare$5,538
Procedure codes3
Dr. Siegel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 492024: 5818%
- Other services
- 2023: 02024: 20
Dr. Siegel compared with the Massachusetts median for internists, 2024
- Dr. Siegel
- Massachusetts median
- Medicare services
- 78vs 43182% below
- Medicare patients
- 49vs 19475% below
- Part D claims
- 26vs 40294% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Siegel'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. Lydia C. Siegel treated 49 Medicare patients in 2024, average age 71
CMS counts 49 Medicare patients who saw Dr. Siegel in 2024. The largest group is 65 to 74, with 19 patients. 73% of them have high blood pressure, and 69% have high cholesterol. 61% are also on Medicaid. Their average risk score is 1.76, 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. Siegel's median patient age at 71, with 79% women.
Medicare patients, 202449
Average age71
Average risk score1.76
Also on Medicaid61%
Dr. Siegel's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Siegel's Medicare patients by sex, 2024
- Women3469%
- Men1531%
Chronic conditions among Dr. Siegel's Medicare patients, 2024
- High blood pressure73%
- High cholesterol69%
- Arthritis63%
- Diabetes51%
- Mood disorders45%
- Anxiety41%
- Depression39%
- Ischemic heart disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Siegel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women79%
- Men18%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lydia C. Siegel wrote 188 Medicare Part D claims in 2024
In 2024, Dr. Siegel wrote 188 Medicare Part D claims for 67 patients. 84% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $532 in total drug cost. In 2023, CMS named 15 claims across 1 drug.
Part D claims, 2024188
Drugs named by CMS2
Total drug cost$532
Part D patients67
Dr. Siegel's Part D claims by kind of drug, 2024
- Generic158 claims84%
- Brand-name and other30 claims16%
Dr. Siegel'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 152024: 2673%
Drugs named by CMS: 2 in 2024, 1 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. Lydia C. Siegel takes part in Medicare
Dr. Siegel 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. Lydia C. Siegel has 4 publications on record
Dmand AI links 4 papers to Dr. Siegel, published from 2022 to 2024. 2022 was the busiest year, with 2. The most frequent topics are Colorectal Neoplasms, Decision Making and Decision Making, Shared. Dr. Siegel's most frequent co-authors are Steven Julius Atlas, MD, Leigh Holman Simmons, MD and Kelly A. Burdge, MD.
Papers4
Years published2022 to 2024
Topics Dr. Siegel writes about most
- Colorectal Neoplasms
- Decision Making
- Decision Making, Shared
- Early Detection of Cancer
- Patient Participation
- Physicians, Primary Care
Dr. Siegel's most frequent co-authors
- Steven Julius Atlas, MD3 shared papers
- Leigh Holman Simmons, MD2 shared papers
- Kelly A. Burdge, MD1 shared paper
Recent publications by Dr. Siegel
Decision MakingDecision Making, SharedPatient Participation
Colorectal NeoplasmsDecision MakingEarly Detection of Cancer
See who Dr. Siegel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Siegel works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Lydia C. Siegel'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 |
| 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. Lydia C. Siegel
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. Lydia C. Siegel's NPI number?
Dr. Lydia C. Siegel's NPI number is 1003892001. It was assigned on December 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Lydia C. Siegel?
Dr. Lydia C. Siegel is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lydia C. Siegel practice?
Dr. Siegel practices at 75 Francis Street, Boston, MA 02115. Dr. Siegel's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Siegel to 1 hospital outpatient department.
What is Dr. Lydia C. Siegel's office phone number?
The practice phone on file for Dr. Siegel is (617) 732-5500.
What is Dr. Lydia C. Siegel's medical license number?
Dr. Siegel holds Massachusetts license 226444.
Which hospitals is Dr. Lydia C. Siegel affiliated with?
Dr. Siegel practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Siegel is also affiliated with Brigham and Women's Faulkner Hospital.
What medical group is Dr. Lydia C. Siegel part of?
Dr. Siegel is linked to Brigham and Women's Hospital.
Does Dr. Lydia C. Siegel accept Medicare?
Yes. CMS data shows Dr. Siegel billed Medicare for 78 services in 2024, and Dr. Siegel accepts Medicare assignment.
How many Medicare patients does Dr. Lydia C. Siegel see?
CMS counts 49 Medicare patients who saw Dr. Siegel in 2024, with an average age of 71.
What services does Dr. Lydia C. Siegel bill to Medicare?
In 2024, Dr. Siegel's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and medicare service (G2211).
Show 4 more questionsShow fewer questions
What drugs does Dr. Lydia C. Siegel prescribe most?
In 2024 Medicare Part D data, Dr. Siegel's most prescribed drugs by claims were Atorvastatin Calcium and Fluticasone Propionate.
How long has Dr. Lydia C. Siegel been practicing?
Dr. Siegel graduated from medical school in 2003, 23 years ago.
Does Dr. Lydia C. Siegel do research?
Dmand AI links 4 publications to Dr. Siegel, published from 2022 to 2024.
Who does Dr. Lydia C. Siegel publish with?
Dr. Siegel's most frequent co-authors are Steven Julius Atlas, MD (3 shared papers), Leigh Holman Simmons, MD (2 shared papers) and Kelly A. Burdge, MD (1 shared paper).
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