DAVID JOSEPH AHR M.D.
NPI 1366447880
Internal Medicine - Hematology & Oncology in West Palm Beach, FL

NPI Status: Active since June 21, 2005

Contact Information

1309 N FLAGLER DR
WEST PALM BEACH, FL
ZIP 33401
Phone: (561) 366-4100
Fax: (561) 366-4146

NPI Profile Information
Primary Taxonomy
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Internal Medicine
Hematology & Oncology

About DAVID AHR

This page provides the complete NPI Profile along with additional information for David Ahr, an internist established in West Palm Beach, Florida with a medical specialization in Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1366447880 assigned on June 2005. The practitioner's primary taxonomy code is 207RH0003X with license number ME26804 (FL). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI: 1366447880
Provider Name: DAVID JOSEPH AHR M.D.
Gender: Male
Entity Type: Individual
Location Address: 1309 N FLAGLER DR WEST PALM BEACH, FL 33401
Location Phone: (561) 366-4100
Location Fax: (561) 366-4146
Mailing Address: 1309 N FLAGLER DR WEST PALM BEACH, FL 33401
Mailing Phone: (561) 366-4100
Mailing Fax: (561) 366-4146
Is Sole Proprietor?: No
Enumeration Date: 06-21-2005
Last Update Date: 05-01-2008
Code Navigator

An internist like David Ahr 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 Hematology & Oncology
Taxonomy Code: 207RH0003X
Type: Allopathic & Osteopathic Physicians
License No.: ME26804
License State: FL
Taxonomy Description: An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

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
D55824	MEDICARE UPIN (02)	FL
50763X	MEDICARE PIN (08)	FL
036463100	MEDICAID (05)	FL

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 1366447880, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

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 6 → 12 → 3 4 → 8 7 → 14 → 5 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 8 + 4 + 1 + 4 + 8 + 1 + 6 + 24 = 70

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

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

70 - 70 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1366447880.