DR. AARON AUERBACH M.D.
NPI 1801857404
Pathology - Anatomic Pathology in Silver Spring, MD

NPI Status: Active since March 31, 2006

Contact Information

606 STEPHEN SITTER AVE
SILVER SPRING, MD
ZIP 20910
Phone: (013) 295-5636

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Pathology
Anatomic Pathology

About AARON AUERBACH

This page provides the complete NPI Profile along with additional information for Aaron Auerbach, a provider established in Silver Spring, Maryland with a medical specialization in Pathology, focusing in anatomic pathology . The healthcare provider is registered in the NPI registry with number 1801857404 assigned on March 2006. The practitioner's primary taxonomy code is 207ZP0101X with license number MD034605 (DC). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1801857404
Provider Name: DR. AARON AUERBACH M.D.
Gender: Male
Entity Type: Individual
Location Address: 606 STEPHEN SITTER AVE SILVER SPRING, MD 20910
Location Phone: (013) 295-5636
Mailing Address: 606 STEPHEN SITTER AVE SILVER SPRING, MD 20910
Mailing Phone: (202) 251-0172
Is Sole Proprietor?: No
Enumeration Date: 03-31-2006
Last Update Date: 04-02-2025
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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
Taxonomy Code: 207ZP0101X
Type: Allopathic & Osteopathic Physicians
License No.: MD034605
License State: DC
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	207ZH0000X	Allopathic & Osteopathic Physicians	Pathology Hematology	D0058723 (MD)

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 1801857404, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 0 → 0 8 → 16 → 7 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 1 + 6 + 5 + 1 + 4 + 4 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1801857404.