Dr. Mari Gem Lorenzo, MD
- Medicare services, 2024
- 58
- Medicare patients, 2024
- 49
- Part D claims, 2024
- 6,352
- Hospital affiliations
- 1
- Industry payments
- $4,592
- Practice address
- 4422 Third Avenue, Bronx, NY 10457
- Practice phone
- Call (212) 960-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lorenzo's professional email, personal email and mobile number
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Dr. Mari Gem Lorenzo is an internist in Bronx, New York
Dr. Lorenzo practices at St. Barnabas Hospital in Bronx, New York, part of SBH Health System.
Dr. Lorenzo's NPI, 1891737839, was assigned on June 12, 2006. Dr. Lorenzo holds New York license 207326.
- NPI
- 1891737839NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022146794
- NPI enumeration date
- June 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 960-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mari Gem Lorenzo practices at St. Barnabas Hospital in Bronx, New York
Dr. Lorenzo's primary practice is St. Barnabas Hospital, at 4422 Third Avenue, Bronx, NY 10457 in Bronx County. The practice phone is (212) 960-9000.
- St. Barnabas Hospital4422 Third Avenue, Bronx, NY 10457 · Bronx CountyPhone(212) 960-9000
Source: Dmand AI Affiliation Data
Dr. Mari Gem Lorenzo is affiliated with 1 site of care and 2 medical groups
Dr. Lorenzo's primary practice is St. Barnabas Hospital in Bronx, New York, part of SBH Health System. The medical group on file is SBH Physicians. Dmand AI also links Dr. Lorenzo to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mari Gem Lorenzo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lorenzo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Barnabas Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mari Gem Lorenzo is one of 9,643 internists in New York
Internal medicine is Dr. Lorenzo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lorenzo is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Lorenzo
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. Mari Gem Lorenzo billed Medicare for 58 services in 2024
CMS data shows 58 Medicare services from Dr. Lorenzo across 1 procedure code in 2024, all of them office visits, for 49 Medicare patients. Medicare paid $3,443 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lorenzo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1092024: 5847%
Dr. Lorenzo compared with the New York median for internists, 2024
- Dr. Lorenzo
- New York median
- Medicare services
- 58vs 42686% below
- Medicare patients
- 49vs 15869% below
- Part D claims
- 5,740vs 6229.2 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Lorenzo'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lorenzo and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mari Gem Lorenzo treated 49 Medicare patients in 2024, average age 64
CMS counts 49 Medicare patients who saw Dr. Lorenzo in 2024. The largest group is 65 to 74, with 22 patients. 71% of them have high blood pressure, and 67% have high cholesterol. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lorenzo's median patient age at 63, with 67% women.
Dr. Lorenzo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lorenzo's Medicare patients by sex, 2024
- Women2347%
- Men2653%
Chronic conditions among Dr. Lorenzo's Medicare patients, 2024
- High blood pressure71%
- High cholesterol67%
- Diabetes45%
- Asthma35%
- Arthritis33%
- Chronic kidney disease31%
- Mood disorders29%
- Tobacco use29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lorenzo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women67%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mari Gem Lorenzo wrote 6,352 Medicare Part D claims in 2024
In 2024, Dr. Lorenzo wrote 6,352 Medicare Part D claims for 358 patients. 74% of them were for generic drugs. CMS names the drug for 5,740 of them, across 92 drugs with 11 or more claims each, at $726,377 in total drug cost. In 2023, CMS named 3,128 claims across 70 drugs.
Dr. Lorenzo's Part D claims by kind of drug, 2024
- Generic4,703 claims74%
- Brand-name1,468 claims23%
- Other181 claims3%
Dr. Lorenzo'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. Lorenzo's Part D claims, 2024
- Opioids0%11 of 6,352 claims
- Antibiotics0%18 of 6,352 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: 3,1282024: 5,74084%
Drugs named by CMS: 92 in 2024, 70 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. Mari Gem Lorenzo takes part in Medicare
Dr. Lorenzo 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. Mari Gem Lorenzo received $4,592 in industry payments from 2016 to 2025
CMS Open Payments shows 240 general payments to Dr. Lorenzo from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $1,092.
General payments to Dr. Lorenzo by program year, 2016 to 2025
Companies that paid Dr. Lorenzo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mari Gem Lorenzo'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) |
| Industry payments | Open Payments (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. Mari Gem Lorenzo
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. Mari Gem Lorenzo's NPI number?
Dr. Mari Gem Lorenzo's NPI number is 1891737839. It was assigned on June 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mari Gem Lorenzo?
Dr. Mari Gem Lorenzo is an internist in Bronx, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mari Gem Lorenzo practice?
Dr. Lorenzo practices at 4422 Third Avenue, Bronx, NY 10457. Dr. Lorenzo's primary practice is St. Barnabas Hospital in Bronx, New York, part of SBH Health System. Dmand AI also links Dr. Lorenzo to 1 medical group.
What is Dr. Mari Gem Lorenzo's office phone number?
The practice phone on file for Dr. Lorenzo is (212) 960-9000.
What is Dr. Mari Gem Lorenzo's medical license number?
Dr. Lorenzo holds New York license 207326.
Which hospitals is Dr. Mari Gem Lorenzo affiliated with?
Dr. Lorenzo practices at St. Barnabas Hospital in Bronx, New York.
What medical group is Dr. Mari Gem Lorenzo part of?
Dr. Lorenzo is linked to SBH Physicians. Dmand AI links Dr. Lorenzo to 1 more medical group.
Does Dr. Mari Gem Lorenzo accept Medicare?
Yes. CMS data shows Dr. Lorenzo billed Medicare for 58 services in 2024, and Dr. Lorenzo accepts Medicare assignment.
How many Medicare patients does Dr. Mari Gem Lorenzo see?
CMS counts 49 Medicare patients who saw Dr. Lorenzo in 2024, with an average age of 64.
What services does Dr. Mari Gem Lorenzo bill to Medicare?
In 2024, Dr. Lorenzo's most billed Medicare services were office visit, established patient (99214).
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What drugs does Dr. Mari Gem Lorenzo prescribe most?
In 2024 Medicare Part D data, Dr. Lorenzo's most prescribed drugs by claims were Atorvastatin Calcium, Albuterol Sulfate Hfa and Lisinopril.
Has Dr. Mari Gem Lorenzo received payments from drug or device companies?
CMS Open Payments shows $4,592 in general payments to Dr. Lorenzo from 28 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Mari Gem Lorenzo been practicing?
Dr. Lorenzo graduated from medical school in 1990, 36 years ago.
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