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Dr. Leonard Anthony Mannarelli , DO

Internal Medicine • Providence, RI

Active NPI 1982770764 Individual Practitioner Male Practitioner
Practice location in NPPES

50 Maude St
Providence, RI 029084325

Call 4014562145 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

50 Maude St

Providence, RI 029084325

Telephone 4014562145
Organization at the Same NPPES Address or Phone
Roger Williams Medical Center Facility NPI 1114961729

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Cranston, RI. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

30-day fills

10,145 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$299,495 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $23.60 in 2023

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2023.

Guide: How to read an Open Payments record

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Mannarelli has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Mannarelli as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Providence and Rhode Island

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Internal Medicine in Providence, RI (2024, 246 clinicians with data). Median for this group: 182. Middle half: 42 to 737.

More Part D prescriptions than 75% of clinicians listed under Internal Medicine in Rhode Island (2024, 581 clinicians with data). Median for this group: 749. Middle half: 91 to 5,119.

Part D drug cost

A higher Part D drug cost than 85% of clinicians listed under Internal Medicine in Providence, RI (2024, 246 clinicians with data). Median for this group: $14,164. Middle half: $637 to $94,127.

A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in Rhode Island (2024, 581 clinicians with data). Median for this group: $63,829. Middle half: $3,341 to $358,176.

512 active clinicians are listed under Internal Medicine with a practice address in Providence, RI (1,034 in Rhode Island).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Providence

9.6% of these 512 clinicians have the CMS telehealth indicator.

50.4% of these 512 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2023

Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $23.60.

Manufacturer Payment Nature Product Type Amount ($)
Exact Sciences Corporation
Food and Beverage
In-kind items and services
Cologuard Collection Kit General $23.60

Source: CMS Open Payments, program year 2023, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Amlodipine Besylate Amlodipine Besylate 296 17,438 $1,764.30 64
Atorvastatin Calcium Atorvastatin Calcium 277 16,733 $2,463.55 61
Lisinopril Lisinopril 263 17,507 $1,879.07 53
Omeprazole Omeprazole 253 15,054 $4,019.71 53
Gabapentin Gabapentin 243 7,160 $2,471.41 33
Levothyroxine Sodium Levothyroxine Sodium 231 12,593 $1,797.81 40
Losartan Potassium Losartan Potassium 207 12,714 $2,031.99 45
Hydrochlorothiazide Hydrochlorothiazide 199 10,825 $488.10 42
Metformin Hcl Metformin Hcl 165 9,339 $1,454.89 32
Simvastatin Simvastatin 144 10,074 $1,285.48 35
Furosemide Furosemide 143 6,781 $666.78 33
Pantoprazole Sodium Pantoprazole Sodium 141 7,589 $1,406.78 28
Metoprolol Tartrate Metoprolol Tartrate 116 7,478 $948.75 24
Meloxicam Meloxicam 103 3,853 $722.11 19
Trazodone Hcl Trazodone Hcl 101 4,759 $1,042.28 18
Eliquis Apixaban 99 3,303 $62,336.92 15
Metoprolol Succinate Metoprolol Succinate 98 6,534 $1,327.45 24
Jardiance Empagliflozin 91 3,110 $61,467.72 13
Rosuvastatin Calcium Rosuvastatin Calcium 90 5,783 $1,371.12 21
Famotidine Famotidine 89 3,217 $946.79 15
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 88 1,760 $961.50 15
Allopurinol Allopurinol 88 6,220 $964.82 22
Albuterol Sulfate Hfa Albuterol Sulfate 87 2,605 $2,194.54 19
Tamsulosin Hcl Tamsulosin Hcl 84 4,818 $1,266.52 21
Citalopram Hbr Citalopram Hydrobromide 74 3,355 $365.76 11

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-01-05
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES RI DO452

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Rhode Island State Medical Licensing Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20120227000719

Enrollment State Jurisdiction

RI

PECOS Control ID

3274693536

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Secondary Practice Locations

725 Reservoir Ave Ste 6a

Cranston, RI 029104450

Phone: 4019422320

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
Dr. Anne Bauman , MD

Internal Medicine

NPI 1730281346

Doctor of Medicine (M.D.)

Dr. Keith Brennan , MD

Internal Medicine

NPI 1659668580

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

12 Historical Events
📍
Updated Practice Location January 05, 2026

Registered at 50 MAUDE ST, PROVIDENCE, RI 029084325 (Tel: 4014562145)

âś…
NPI Profile Active January 11, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location January 11, 2017

Registered at 35 VILLAGE PLAZA, NORTH SCITUATE, RI 028571849 (Tel: 4016476262)

📍
Updated Business Mailing Address January 11, 2017

Registered at PO BOX 312, PASCOAG, RI 028590312 (Tel: 4015670800)

👤
Provider Name / Credentials Updated January 11, 2017

Recorded as LEONARD MANNARELLI, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 11, 2017

Internal Medicine (license number reported to NPPES: RI DO452)

âś…
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) July 08, 2007

Registered at 135 ATWOOD AVE, CRANSTON, RI 029204131 (Tel: 4019441748)

📍
Business Mailing Address (Initial Record) July 08, 2007

Registered at 135 ATWOOD AVE, CRANSTON, RI 029204131 (Tel: 4019441748)

👤
Provider Name / Credentials (Initial Record) July 08, 2007

Recorded as LEONARD MANNARELLI, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (license number reported to NPPES: RI DO452)

🟢
Initial NPI Registration & Enumeration November 25, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1982770764
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 25, 2006
Last Update: January 05, 2026
Sole Proprietor: No

Other Internal Medicine Providers in Providence

All Internal Medicine Providers in Providence

Mailing Address

Po Box 312

Pascoag, RI 028590312

Phone: 4015670800

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.