Analgesics, OpioidEducation, MedicalNeonatal Abstinence Syndrome
Dr. Leonie M. Hoyo, MD
NPI1790312668PAC ID0244640563
- Medicare services, 2024
- 1,612
- Medicare patients, 2024
- 487
- Part D claims, 2024
- 2,301
- Publications
- 4
- Hospital affiliations
- 6
- Practice address
- 100 Highland St, Milton, MA 02186
- Practice phone
- Call (617) 698-8855
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Shore Internal Medicine Associates Inc.
Milton, Massachusetts
Find Dr. Hoyo's professional email, personal email and mobile number
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Dr. Leonie M. Hoyo is an internist in Milton, Massachusetts
Dr. Hoyo practices at South Shore Internal Medicine Associates Inc. in Milton, Massachusetts.
Dr. Hoyo's NPI, 1790312668, was assigned on March 23, 2020. Dr. Hoyo graduated from Boston University School of Medicine in 2020. Dr. Hoyo holds Massachusetts license 1013692.
NPI and contact details
- NPI
- 1790312668NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244640563
- NPI enumeration date
- March 23, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 698-8855
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leonie M. Hoyo practices at South Shore Internal Medicine Associates Inc. in Milton, Massachusetts
Dr. Hoyo's primary practice is South Shore Internal Medicine Associates Inc., at 100 Highland St, Milton, MA 02186 in Norfolk County. The practice phone is (617) 698-8855.
- South Shore Internal Medicine Associates Inc.100 Highland St, Milton, MA 02186 · Norfolk CountyPhone(617) 698-8855
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leonie M. Hoyo is affiliated with 15 sites of care and 2 medical groups
Dr. Hoyo's primary practice is South Shore Internal Medicine Associates Inc. in Milton, Massachusetts. Dr. Hoyo is also affiliated with Beth Israel Deaconess Hospital-Milton. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Hoyo to 5 more hospitals, 5 home health agencies, 2 group practices and clinics, 1 hospice and 1 medical group, each named with a free account.
South Shore Internal Medicine Associates Inc.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Leonie M. Hoyo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hoyo practices, 14 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Shore Internal Medicine Associates Inc. | Available with a free account |
| +14 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leonie M. Hoyo is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Hoyo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hoyo is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Hoyo
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. Leonie M. Hoyo billed Medicare for 1,612 services in 2024
CMS data shows 1,612 Medicare services from Dr. Hoyo across 14 procedure codes in 2024, for 487 Medicare patients. Medicare paid $116,146 for them. Every service was in an office.
Medicare services, 20241,612
Medicare patients487
Paid by Medicare$116,146
Procedure codes14
Dr. Hoyo's Medicare services by type, 2024
- Office and hospital visits849
- Other services555
- Tests and treatments175
- Surgery33
Dr. Hoyo compared with the Massachusetts median for internists, 2024
- Dr. Hoyo
- Massachusetts median
- Medicare services
- 1,612vs 4313.7 times
- Medicare patients
- 487vs 1942.5 times
- Part D claims
- 1,766vs 4024.4 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Hoyo'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. Leonie M. Hoyo treated 487 Medicare patients in 2024, average age 78
CMS counts 487 Medicare patients who saw Dr. Hoyo in 2024. The largest group is 75 to 84, with 184 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hoyo's median patient age at 72, with 44% women.
Medicare patients, 2024487
Average age78
Average risk score1.09
Also on Medicaid6%
Dr. Hoyo's Medicare patients by age, 2024
Dr. Hoyo's Medicare patients by sex, 2024
- Women24851%
- Men23949%
Chronic conditions among Dr. Hoyo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease31%
- Atrial fibrillation28%
- Diabetes28%
- Chronic kidney disease25%
- Anxiety22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hoyo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leonie M. Hoyo wrote 2,301 Medicare Part D claims in 2024
In 2024, Dr. Hoyo wrote 2,301 Medicare Part D claims for 557 patients. 87% of them were for generic drugs. CMS names the drug for 1,766 of them, across 55 drugs with 11 or more claims each, at $207,280 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Part D claims, 20242,301
Drugs named by CMS55
Total drug cost$207,280
Part D patients557
Dr. Hoyo's Part D claims by kind of drug, 2024
- Generic2,002 claims87%
- Brand-name and other299 claims13%
Dr. Hoyo'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. Hoyo's Part D claims, 2024
- Opioids4%84 of 2,301 claims
- Antibiotics4%103 of 2,301 claims
- Antipsychotics, patients 65 and over1%12 of 2,301 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: 112024: 1,76615955%
Drugs named by CMS: 55 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
Dr. Leonie M. Hoyo offers telehealth to Medicare patients
Dr. Hoyo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hoyo as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Leonie M. Hoyo has 4 publications on record
Dmand AI links 4 papers to Dr. Hoyo, published from 2018 to 2021. 2020 was the busiest year, with 2. The most frequent topics are Neonatal Abstinence Syndrome and Opioid-Related Disorders. Dr. Hoyo's most frequent co-authors are Elisha M. Wachman, MD, Phanirekha Chandra and Nina Hasika Gummadi, MD.
Papers4
Years published2018 to 2021
Dr. Hoyo's papers by year, 2018 to 2021
Topics Dr. Hoyo writes about most
- Neonatal Abstinence Syndrome
- Opioid-Related Disorders
Dr. Hoyo's most frequent co-authors
- Elisha M. Wachman, MD2 shared papers
- Phanirekha Chandra1 shared paper
- Nina Hasika Gummadi, MD1 shared paper
Recent publications by Dr. Hoyo
Gastrointest Endosc
CatharticsColonoscopyGastroenterology
Genes Brain Behav
DNA MethylationEpigenesis, GeneticNeonatal Abstinence Syndrome
See who Dr. Hoyo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hoyo 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. Leonie M. Hoyo received $559 in industry payments from 2024 to 2025
CMS Open Payments shows 22 general payments to Dr. Hoyo from 15 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $89.
General payments to Dr. Hoyo by program year, 2024 to 2025
Companies that paid Dr. Hoyo the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leonie M. Hoyo graduated from Boston University School of Medicine
Dr. Hoyo graduated from Boston University School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Leonie M. Hoyo'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 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. Leonie M. Hoyo
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. Leonie M. Hoyo's NPI number?
Dr. Leonie M. Hoyo's NPI number is 1790312668. It was assigned on March 23, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Leonie M. Hoyo?
Dr. Leonie M. Hoyo is an internist in Milton, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Leonie M. Hoyo practice?
Dr. Hoyo practices at 100 Highland St, Milton, MA 02186. Dr. Hoyo's primary practice is South Shore Internal Medicine Associates Inc. in Milton, Massachusetts. Dmand AI also links Dr. Hoyo to 5 hospitals, 5 home health agencies, 2 group practices and clinics, 1 hospice and 1 medical group.
What is Dr. Leonie M. Hoyo's office phone number?
The practice phone on file for Dr. Hoyo is (617) 698-8855.
What is Dr. Leonie M. Hoyo's medical license number?
Dr. Hoyo holds Massachusetts license 1013692.
Which hospitals is Dr. Leonie M. Hoyo affiliated with?
Dr. Hoyo is affiliated with Beth Israel Deaconess Hospital-Milton. Dmand AI links Dr. Hoyo to 5 more hospitals.
What medical group is Dr. Leonie M. Hoyo part of?
Dr. Hoyo is linked to Brigham and Women's Hospital. Dmand AI links Dr. Hoyo to 1 more medical group.
Does Dr. Leonie M. Hoyo accept Medicare?
Yes. CMS data shows Dr. Hoyo billed Medicare for 1,612 services in 2024, and Dr. Hoyo accepts Medicare assignment.
Does Dr. Leonie M. Hoyo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hoyo as offering telehealth services.
How many Medicare patients does Dr. Leonie M. Hoyo see?
CMS counts 487 Medicare patients who saw Dr. Hoyo in 2024, with an average age of 78.
Show 7 more questionsShow fewer questions
What services does Dr. Leonie M. Hoyo bill to Medicare?
In 2024, Dr. Hoyo's most billed Medicare services were office visit, established patient (99213), medicare service (G2211) and office visit, established patient (99214).
Where did Dr. Leonie M. Hoyo go to medical school?
Dr. Hoyo graduated from Boston University School of Medicine in 2020.
What drugs does Dr. Leonie M. Hoyo prescribe most?
In 2024 Medicare Part D data, Dr. Hoyo's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Leonie M. Hoyo received payments from drug or device companies?
CMS Open Payments shows $559 in general payments to Dr. Hoyo from 15 companies from 2024 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Leonie M. Hoyo been practicing?
Dr. Hoyo graduated from medical school in 2020, 6 years ago.
Does Dr. Leonie M. Hoyo do research?
Dmand AI links 4 publications to Dr. Hoyo, published from 2018 to 2021.
Who does Dr. Leonie M. Hoyo publish with?
Dr. Hoyo's most frequent co-authors are Elisha M. Wachman, MD (2 shared papers), Phanirekha Chandra (1 shared paper) and Nina Hasika Gummadi, MD (1 shared paper).
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