ROBERT DANA LEFF
NPI 1497789903
Internal Medicine - Rheumatology in Duluth, MN

NPI Status: Active since July 10, 2006

Contact Information

400 E 3RD ST
DULUTH, MN
ZIP 55805
Phone: (218) 786-8364

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  • Individual
  • Male
  • Internal Medicine
  • Rheumatology

About ROBERT LEFF

This page provides the complete NPI Profile along with additional information for Robert Leff, an internist established in Duluth, Minnesota with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1497789903 assigned on July 2006. The practitioner's primary taxonomy code is 207RR0500X with license number 26752 (MN). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1497789903
Provider Name
ROBERT DANA LEFF
Gender
Male
Entity Type
Individual
Location Address
400 E 3RD ST DULUTH, MN 55805
Location Phone
(218) 786-8364
Mailing Address
400 E 3RD ST DULUTH, MN 55805
Mailing Phone
(218) 786-8364
Is Sole Proprietor?
No
Enumeration Date
07-10-2006
Last Update Date
05-10-2011
Code Navigator

An internist like Robert Leff 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

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 Rheumatology

Taxonomy Code
207RR0500X
Type
Allopathic & Osteopathic Physicians
License No.
26752
License State
MN
Taxonomy Description
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
556207400MEDICAID (05)MN 
D75820MEDICARE UPIN (02) 
30442200MEDICAID (05)WI 
669000013MEDICARE PIN (08)MN 

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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 1497789903, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
Check
3
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 9 → 18 → 9 7 → 14 → 5 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 4 + 8 + 1 + 8 + 9 + 0 + 24 = 77

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

The next multiple of ten after 77 is 80. The difference is the calculated check digit.

80 - 77 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1497789903.

Other Providers at the Same Location


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

Anesthesiology
400 E 3RD ST
DULUTH, MN 55805
Nurse Anesthetist, Certified Registered
400 E 3RD ST, DULUTH CLINIC
DULUTH, MN 55805
Internal Medicine (Endocrinology, Diabetes & Metabolism)
400 E 3RD ST
DULUTH, MN 55805
Pharmacist
400 E 3RD ST
DULUTH, MN 55805
Physician Assistant
400 E 3RD ST, DULUTH CLINIC, INTERNAL MEDICINE
DULUTH, MN 55805
Specialist/Technologist (Athletic Trainer)
400 E 3RD ST
DULUTH, MN 55805
Nurse Practitioner (Family)
400 E 3RD ST
DULUTH, MN 55805
Specialist/Technologist (Athletic Trainer)
400 E 3RD ST
DULUTH, MN 55805
Physician Assistant (Medical)
400 E 3RD ST, MAILDROP: 1S2W50
DULUTH, MN 55805
Pediatrics (Pediatric Critical Care Medicine)
400 E 3RD ST
DULUTH, MN 55805
Nurse Practitioner (Family)
400 E 3RD ST
DULUTH, MN 55805
Physician Assistant
400 E 3RD ST
DULUTH, MN 55805
Internal Medicine (Cardiovascular Disease)
400 E 3RD ST
DULUTH, MN 55805
Nurse Practitioner (Family)
400 E 3RD ST
DULUTH, MN 55805
Family Medicine (Sports Medicine)
400 E 3RD ST
DULUTH, MN 55805
Radiology (Therapeutic Radiology)
400 E 3RD ST
DULUTH, MN 55805
Nurse Anesthetist, Certified Registered
400 E 3RD ST
DULUTH, MN 55805
Obstetrics & Gynecology
400 E 3RD ST
DULUTH, MN 55805
Nurse Anesthetist, Certified Registered
400 E 3RD ST
DULUTH, MN 55805
Internal Medicine (Cardiovascular Disease)
400 E 3RD ST
DULUTH, MN 55805

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497789903, enumerated as an "individual" on July 10, 2006.

The provider is located at 400 E 3RD ST DULUTH, MN 55805 and the phone number is (218) 786-8364.

Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.