DR. WILLIAM JOHN GEIMEIER M.D.
NPI 1003848474
Allergy & Immunology - Allergy in Newark, DE

NPI Status: Active since July 07, 2006

Contact Information

179 W CHESTNUT HILL RD
SUITE 1
NEWARK, DE
ZIP 19713
Phone: (302) 453-1343
Fax: (302) 453-1654

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  • Individual
  • Male
  • Allergy & Immunology
  • Allergy

About WILLIAM GEIMEIER

This page provides the complete NPI Profile along with additional information for William Geimeier, a provider established in Newark, Delaware with a medical specialization in Allergy & Immunology, focusing in allergy . The healthcare provider is registered in the NPI registry with number 1003848474 assigned on July 2006. The practitioner's primary taxonomy code is 207KA0200X with license number C1-0001765 (DE). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1003848474
Provider Name
DR. WILLIAM JOHN GEIMEIER M.D.
Gender
Male
Entity Type
Individual
Location Address
179 W CHESTNUT HILL RD SUITE 1 NEWARK, DE 19713
Location Phone
(302) 453-1343
Location Fax
(302) 453-1654
Mailing Address
179 W CHESTNUT HILL RD SUITE 1 NEWARK, DE 19713
Mailing Phone
(302) 453-1343
Mailing Fax
(302) 453-1654
Is Sole Proprietor?
Yes
Enumeration Date
07-07-2006
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

Allergy & Immunology Allergy

Taxonomy Code
207KA0200X
Type
Allopathic & Osteopathic Physicians
License No.
C1-0001765
License State
DE
Taxonomy Description
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

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.

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
0078796000OTHER (01)AMERIHEALTH
397142OTHER (01)MAMSI
B66416MEDICARE UPIN (02)DE 
511251OTHER (01)AETNA
095620A48MEDICARE ID-TYPE UNSPECIFIED (04)DE 
0000048901MEDICAID (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 1003848474, 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
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 0 → 0 8 → 16 → 7 8 → 16 → 7 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 6 + 4 + 1 + 6 + 4 + 1 + 4 + 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 1003848474.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Pediatrics
179 W CHESTNUT HILL RD
NEWARK, DE 19713
Nurse Practitioner
179 W CHESTNUT HILL RD, SUITE 1
NEWARK, DE 19713
Allergy & Immunology
179 W CHESTNUT HILL RD
NEWARK, DE 19713
Dentist
179 W CHESTNUT HILL RD
NEWARK, DE 19713
Nurse Practitioner (Family)
179 W CHESTNUT HILL RD, SUITE 6
NEWARK, DE 19713

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003848474, enumerated as an "individual" on July 07, 2006.

The provider is located at 179 W CHESTNUT HILL RD SUITE 1 NEWARK, DE 19713 and the phone number is (302) 453-1343.

Allergy & Immunology with taxonomy code 207KA0200X and a focus in Allergy.

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