DR. LEONARD ANTHONY MANNARELLI D.O.
NPI 1982770764
Internal Medicine in Providence, RI

NPI Status: Active since November 25, 2006

Contact Information

50 MAUDE ST
PROVIDENCE, RI
ZIP 02908
Phone: (401) 456-2145

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  • Individual
  • Male
  • Internal Medicine
  • PECOS Enrolled

About LEONARD MANNARELLI

This page provides the complete NPI Profile along with additional information for Leonard Mannarelli, an internist established in Providence, Rhode Island with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1982770764 assigned on November 2006. The practitioner's primary taxonomy code is 207R00000X with license number DO452 (RI). The provider is registered as an individual and his NPI record was last updated January 2026.

NPI
1982770764
Provider Name
DR. LEONARD ANTHONY MANNARELLI D.O.
Gender
Male
Entity Type
Individual
Location Address
50 MAUDE ST PROVIDENCE, RI 02908
Location Phone
(401) 456-2145
Mailing Address
PO BOX 312 PASCOAG, RI 02859
Mailing Phone
(401) 567-0800
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
11-25-2006
Last Update Date
01-05-2026
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An internist like Leonard Mannarelli is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • 725 Reservoir Ave Ste 6A
    Cranston, RI 02910
    (401) 942-2320

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
DO452
License State
RI
Taxonomy Description
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.

Medicare Participation & PECOS Enrollment Status

Leonard Mannarelli is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    8 DME suppliers used 22 Medicare Claims 75 Services Paid

  • DME-Medical/Surgical Supplies (DA000N)

    Lancets, per box of 100 (HCPCS:A4259)

    5 DME suppliers used 11 Medicare Claims 20 Services Paid

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 02908 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $134.17
  • Minimum New Patient Price $58.57
  • Maximum New Patient Price $177.03
  • Average New Patient Copayment $33.54
  • Minimum New Patient Copayment $14.64
  • Maximum New Patient Copayment $44.25

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $103.1
  • Minimum Established Patient Price $18.92
  • Maximum Established Patient Price $144.38
  • Average Established Patient Copayment $25.77
  • Minimum Established Patient Copayment $4.73
  • Maximum Established Patient Copayment $36.09

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1982770764, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 8 → 16 → 7 7 → 14 → 5 0 → 0 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 1 + 6 + 2 + 1 + 4 + 7 + 0 + 7 + 1 + 2 + 24 = 66

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1982770764.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Nurse Practitioner
50 MAUDE ST
PROVIDENCE, RI 02908
Internal Medicine (Infectious Disease)
50 MAUDE ST
PROVIDENCE, RI 02908
Internal Medicine (Gastroenterology)
50 MAUDE ST
PROVIDENCE, RI 02908
Internal Medicine (Endocrinology, Diabetes & Metabolism)
50 MAUDE ST
PROVIDENCE, RI 02908
Internal Medicine (Rheumatology)
50 MAUDE ST
PROVIDENCE, RI 02908
Internal Medicine (Rheumatology)
50 MAUDE ST
PROVIDENCE, RI 02908
Optometrist
50 MAUDE ST
PROVIDENCE, RI 02908
Optometrist
50 MAUDE ST
PROVIDENCE, RI 02908
Internal Medicine (Pulmonary Disease)
50 MAUDE ST
PROVIDENCE, RI 02908
Surgery (Plastic and Reconstructive Surgery)
50 MAUDE ST, 2ND FLOOR
PROVIDENCE, RI 02908
Dermatology
50 MAUDE ST
PROVIDENCE, RI 02908
Skilled Nursing Facility
50 MAUDE ST
PROVIDENCE, RI 02908
Nurse Practitioner
50 MAUDE ST, 4TH FLOOR
PROVIDENCE, RI 02908
Nurse Practitioner (Gerontology)
50 MAUDE ST
PROVIDENCE, RI 02908
Surgery
50 MAUDE ST, 2ND FLOOR
PROVIDENCE, RI 02908
Optometrist
50 MAUDE ST, PROVIDENCE EYE ASSOCIATES
PROVIDENCE, RI 02908
Optometrist
50 MAUDE ST
PROVIDENCE, RI 02908
Surgery
50 MAUDE ST
PROVIDENCE, RI 02908
Surgery (Surgical Oncology)
50 MAUDE ST
PROVIDENCE, RI 02908
Clinical Neuropsychologist
50 MAUDE ST, ELMHURST, 5TH FLOOR
PROVIDENCE, RI 02908

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982770764, enumerated as an "individual" on November 25, 2006.

The provider is located at 50 MAUDE ST PROVIDENCE, RI 02908 and the phone number is (401) 456-2145.

Internal Medicine with taxonomy code 207R00000X.