ROBERT LOUIS HANDWERGER M.D.
NPI 1669440475
Specialist in Annapolis, MD

NPI Status: Active since March 08, 2006

Contact Information

600 RIDGELY AVE
SUITE 123
ANNAPOLIS, MD
ZIP 21401
Phone: (410) 224-3614
Fax: (410) 224-5936

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  • Individual
  • Male
  • Specialist

About ROBERT HANDWERGER

This page provides the complete NPI Profile along with additional information for Robert Handwerger, a provider established in Annapolis, Maryland with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1669440475 assigned on March 2006. The practitioner's primary taxonomy code is 174400000X with license number D0008904 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1669440475
Provider Name
ROBERT LOUIS HANDWERGER M.D.
Gender
Male
Entity Type
Individual
Location Address
600 RIDGELY AVE SUITE 123 ANNAPOLIS, MD 21401
Location Phone
(410) 224-3614
Location Fax
(410) 224-5936
Mailing Address
600 RIDGELY AVE SUITE 120 ANNAPOLIS, MD 21401
Mailing Phone
(410) 224-7795
Mailing Fax
(410) 224-5936
Is Sole Proprietor?
Yes
Enumeration Date
03-08-2006
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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
D0008904
License State
MD
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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
B67176MEDICARE UPIN (02)MD 
KK85HN39MEDICARE ID-TYPE UNSPECIFIED (04)MD 

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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 1669440475, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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

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 + 4 + 0 + 4 + 1 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1669440475.

Other Providers at the Same Location


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

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600 RIDGELY AVE, STE 130
ANNAPOLIS, MD 21401
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Dentist (General Practice)
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Specialist
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Specialist
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Surgery
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Otolaryngology
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Physician Assistant (Surgical)
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Psychologist (Clinical)
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Social Worker (Clinical)
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Social Worker (Clinical)
600 RIDGELY AVE, SUITE 210
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Nurse Practitioner (Family)
600 RIDGELY AVE, STE 231
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Internal Medicine (Pulmonary Disease)
600 RIDGELY AVE, SUITE 121
ANNAPOLIS, MD 21401
Psychologist (Clinical)
600 RIDGELY AVE, SUITE 210
ANNAPOLIS, MD 21401
Speech-Language Pathologist
600 RIDGELY AVE, SUITE 230
ANNAPOLIS, MD 21401
Clinic/Center (Hearing and Speech)
600 RIDGELY AVE, STE 110
ANNAPOLIS, MD 21401
Urology
600 RIDGELY AVE, SUITE 130
ANNAPOLIS, MD 21401
Urology
600 RIDGELY AVE, SUITE 130
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Specialist
600 RIDGELY AVE, STE 130
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Urology
600 RIDGELY AVE, STE 130
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Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669440475, enumerated as an "individual" on March 08, 2006.

The provider is located at 600 RIDGELY AVE SUITE 123 ANNAPOLIS, MD 21401 and the phone number is (410) 224-3614.

Specialist with taxonomy code 174400000X.

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