BARBARA ELEONORE CHRISTIANA KNOLLMANN-RITSCHEL MD
NPI 1659342194
Pathology - Anatomic Pathology & Clinical Pathology in Bethesda, MD

NPI Status: Active since February 01, 2006

Contact Information

8901 WISCONSIN AVE
PATHOLOGY DEPARTMENT, 3RD FLOOR
BETHESDA, MD
ZIP 20889
Phone: (301) 295-2520

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  • Individual
  • Female
  • Pathology
  • Anatomic Pathology & Clinical Pathology

About BARBARA KNOLLMANN-RITSCHEL

This page provides the complete NPI Profile along with additional information for Barbara Knollmann-ritschel, a provider established in Bethesda, Maryland with a medical specialization in Pathology, focusing in anatomic pathology & clinical pathology . The healthcare provider is registered in the NPI registry with number 1659342194 assigned on February 2006. The practitioner's primary taxonomy code is 207ZP0102X with license number 35.067592 (OH). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1659342194
Provider Name
BARBARA ELEONORE CHRISTIANA KNOLLMANN-RITSCHEL MD
Gender
Female
Entity Type
Individual
Location Address
8901 WISCONSIN AVE PATHOLOGY DEPARTMENT, 3RD FLOOR BETHESDA, MD 20889
Location Phone
(301) 295-2520
Mailing Address
6406 BROAD ST BETHESDA, MD 20816
Mailing Phone
(301) 229-3460
Is Sole Proprietor?
Yes
Enumeration Date
02-01-2006
Last Update Date
07-08-2007
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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

Pathology Anatomic Pathology & Clinical Pathology

Taxonomy Code
207ZP0102X
Type
Allopathic & Osteopathic Physicians
License No.
35.067592
License State
OH
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

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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 1659342194, 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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
4
Unchanged
Pos 7
2
Doubled → 4
Pos 8
1
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 5 → 10 → 1 3 → 6 2 → 4 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 6 + 4 + 4 + 1 + 1 + 8 + 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 1659342194.

Other Providers at the Same Location


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

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Dentist (General Practice)
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Internal Medicine (Endocrinology, Diabetes & Metabolism)
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BETHESDA, MD 20889
Internal Medicine (Infectious Disease)
8901 WISCONSIN AVE
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Anesthesiology
8901 WISCONSIN AVE, NATIONAL NAVAL MEDICAL CENTER
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Social Worker (Clinical)
8901 WISCONSIN AVE
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Social Worker (Clinical)
8901 WISCONSIN AVE, BLDG 5 DECK 2
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Chiropractor
8901 WISCONSIN AVE, BLDG 9
BETHESDA, MD 20889
Social Worker (Clinical)
8901 WISCONSIN AVE, NNMC BREAST CARE CENTER BLDG 10, 4 WEST
BETHESDA, MD 20889
Nurse Practitioner (Pediatrics)
8901 WISCONSIN AVE
BETHESDA, MD 20889
Social Worker (Clinical)
8901 WISCONSIN AVE, C/O NNMC BLDG 10, 7W, RM 7051, CABHC
BETHESDA, MD 20889
Nurse Practitioner (Obstetrics & Gynecology)
8901 WISCONSIN AVE, OB/GYN DEPT, BLDG 9, SUITE 2224
BETHESDA, MD 20889
Obstetrics & Gynecology
8901 WISCONSIN AVE
BETHESDA, MD 20889
Dentist (General Practice)
8901 WISCONSIN AVE
BETHESDA, MD 20889
Radiology (Diagnostic Radiology)
8901 WISCONSIN AVE
BETHESDA, MD 20889
Radiology (Diagnostic Radiology)
8901 WISCONSIN AVE, NNMC - DEPARTMENT OF RADIOLOGY
BETHESDA, MD 20889
Radiology (Diagnostic Radiology)
8901 WISCONSIN AVE, NATIONAL NAVAL MEDICAL CENTER
BETHESDA, MD 20889
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8901 WISCONSIN AVE
BETHESDA, MD 20889
Internal Medicine
8901 WISCONSIN AVE
BETHESDA, MD 20889

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659342194, enumerated as an "individual" on February 01, 2006.

The provider is located at 8901 WISCONSIN AVE PATHOLOGY DEPARTMENT, 3RD FLOOR BETHESDA, MD 20889 and the phone number is (301) 295-2520.

Pathology with taxonomy code 207ZP0102X and a focus in Anatomic Pathology & Clinical Pathology.