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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARI GEM LORENZO M.D.
NPI 1891737839
Internal Medicine in Bronx, NY

Active since June 12, 2006PECOS Enrolled

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mari Gem Lorenzo M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARI GEM LORENZO M.D. (NPI 1891737839) is an individual internal medicine provider in Bronx, New York, licensed in New York (207326) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with St Barnabas Hospital, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1891737839
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARI GEM LORENZOCredential: M.D.
Location Address4422 3RD AVEBronx, NY 10457-2545
Mailing Address4422 3rd AveBronx, NY 10457-2545 · (718) 960-6205
Phone(718) 960-6205
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateJune 12, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1891737839 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 207326
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4422 3RD AVE, Bronx, NY 10457
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Other Identifiers 1

Medicaid01769415NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mari Gem Lorenzo M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8022146794
PECOS Enrollment IDI20100518000020
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
58 services41 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Barnabas Hospital

Acute Care Hospitals · Bronx, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330399
Location4422 Third AvenueBronx, NY 10457 · Bronx County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10457 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
7 suppliers11 claims25 services$5.01 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NAI LI D.O.
Emergency Medicine
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-9000
ADERINOLA OMONIYI PHARMD
Pharmacist
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-6179
CATHERINE AKRAM TAWFIK DO
Dermatology
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-6649
VALENTYNA OLINCHUK MD
Student in an Organized Health Care Education/Training Program
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-6211
DUSAY SALIH MD
Student in an Organized Health Care Education/Training Program
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-9000
KATHLEEN DIMAGGIO CNM, NP
Advanced Practice Midwife
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-9415
DR. ROBERT ADLAI MENKEL M.D.
Internal Medicine
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-9000
DEEPIKA KURUP
Student in an Organized Health Care Education/Training Program
4422 3RD AVE
BRONX, NY 10457
Bronx County (718) 960-9000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mari Lorenzo's NPI number?

The NPI number for Mari Lorenzo is 1891737839. It was assigned to this individual provider in the NPPES registry on June 12, 2006.

Where is Mari Lorenzo located?

Mari Lorenzo practices at 4422 3rd Ave, Bronx, NY 10457. The listed phone number is (718) 960-6205.

What is Mari Lorenzo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mari Lorenzo enrolled in Medicare?

Yes. Mari Lorenzo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Mari Lorenzo affiliated with any hospitals?

According to CMS data, Mari Lorenzo is affiliated with St Barnabas Hospital.

When was this NPI record last updated?

The NPPES record for Mari Lorenzo was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.