FRANCIS A MARRO M.D.
NPI 1669468138
Internal Medicine - Nephrology in Dover, DE

NPI Status: Active since September 21, 2005

Contact Information

748 S NEW ST
SUITES C & D
DOVER, DE
ZIP 19904
Phone: (302) 734-3227
Fax: (302) 734-0391

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  • Individual
  • Male
  • Internal Medicine
  • Nephrology

About FRANCIS MARRO

This page provides the complete NPI Profile along with additional information for Francis Marro, an internist established in Dover, Delaware with a medical specialization in Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1669468138 assigned on September 2005. The practitioner's primary taxonomy code is 207RN0300X with license number C1-0001835 (DE). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1669468138
Provider Name
FRANCIS A MARRO M.D.
Gender
Male
Entity Type
Individual
Location Address
748 S NEW ST SUITES C & D DOVER, DE 19904
Location Phone
(302) 734-3227
Location Fax
(302) 734-0391
Mailing Address
4923 OGLETOWN STANTON RD SUITE 200 NEWARK, DE 19713
Mailing Phone
(302) 225-0451
Mailing Fax
(302) 734-0391
Is Sole Proprietor?
Yes
Enumeration Date
09-21-2005
Last Update Date
07-08-2007
Code Navigator

An internist like Francis Marro 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 Nephrology

Taxonomy Code
207RN0300X
Type
Allopathic & Osteopathic Physicians
License No.
C1-0001835
License State
DE
Taxonomy Description
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

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
B66457MEDICARE UPIN (02) 
119816N74MEDICARE ID-TYPE UNSPECIFIED (04)DE 
0000050901MEDICAID (05)DE 

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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 1669468138, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
6
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
1
Unchanged
Pos 9
3
Doubled → 6
Check
8
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 6 → 12 → 3 4 → 8 8 → 16 → 7 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 8 + 6 + 1 + 6 + 1 + 6 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1669468138.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Nurse Practitioner
748 S NEW ST, SUITES C&D
DOVER, DE 19904
Dietitian, Registered
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Dietitian, Registered
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Dentist (General Practice)
748 S NEW ST
DOVER, DE 19904
Dentist (General Practice)
748 S NEW ST
DOVER, DE 19904
Dentist
748 S NEW ST
DOVER, DE 19904
Registered Nurse
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Registered Nurse
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Nurse's Aide
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Registered Nurse
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Physician Assistant (Medical)
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Nurse's Aide
748 S NEW ST, SUITES C & D
DOVER, DE 19904
Nurse Practitioner
748 S NEW ST, SUITES C & D
DOVER, DE 19904

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669468138, enumerated as an "individual" on September 21, 2005.

The provider is located at 748 S NEW ST SUITES C & D DOVER, DE 19904 and the phone number is (302) 734-3227.

Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.

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