DR. DOUGLAS EDWARD FELDMAN M.D.
NPI 1851364434
Specialist in Chevy Chase, MD

NPI Status: Active since February 13, 2006

Contact Information

5454 WISCONSIN AVE
SUITE 1535
CHEVY CHASE, MD
ZIP 20815
Phone: (301) 652-8847
Fax: (301) 652-8320

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  • Individual
  • Male
  • Specialist

About DOUGLAS FELDMAN

This page provides the complete NPI Profile along with additional information for Douglas Feldman, a provider established in Chevy Chase, Maryland with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1851364434 assigned on February 2006. The practitioner's primary taxonomy code is 174400000X with license number D23868 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1851364434
Provider Name
DR. DOUGLAS EDWARD FELDMAN M.D.
Gender
Male
Entity Type
Individual
Location Address
5454 WISCONSIN AVE SUITE 1535 CHEVY CHASE, MD 20815
Location Phone
(301) 652-8847
Location Fax
(301) 652-8320
Mailing Address
5454 WISCONSIN AVE SUITE 1535 CHEVY CHASE, MD 20815
Mailing Phone
(301) 652-8847
Mailing Fax
(301) 652-8320
Is Sole Proprietor?
Yes
Enumeration Date
02-13-2006
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.
D23868
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
C61593MEDICARE UPIN (02)MA 

Reviews for DR. DOUGLAS EDWARD FELDMAN M.D.

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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 1851364434, 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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
3
Doubled → 6
Pos 6
6
Unchanged
Pos 7
4
Doubled → 8
Pos 8
4
Unchanged
Pos 9
3
Doubled → 6
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 4 → 8 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 6 + 6 + 8 + 4 + 6 + 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 1851364434.

Other Providers at the Same Location


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

Specialist
5454 WISCONSIN AVE, STE 950
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, STE 950
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, STE 950
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, STE 950
CHEVY CHASE, MD 20815
Internal Medicine (Medical Oncology)
5454 WISCONSIN AVE, STE 1300
CHEVY CHASE, MD 20815
Internal Medicine (Hematology & Oncology)
5454 WISCONSIN AVE, STE 1300
CHEVY CHASE, MD 20815
Internal Medicine (Cardiovascular Disease)
5454 WISCONSIN AVE, SUITE 925
CHEVY CHASE, MD 20815
Internal Medicine (Cardiovascular Disease)
5454 WISCONSIN AVE, SUITE 925
CHEVY CHASE, MD 20815
Internal Medicine (Cardiovascular Disease)
5454 WISCONSIN AVE, SUITE 925
CHEVY CHASE, MD 20815
Internal Medicine (Cardiovascular Disease)
5454 WISCONSIN AVE, SUITE 925
CHEVY CHASE, MD 20815
Internal Medicine (Rheumatology)
5454 WISCONSIN AVE, SUITE 600
CHEVY CHASE, MD 20815
Dentist (General Practice)
5454 WISCONSIN AVE, SUITE 635
CHEVY CHASE, MD 20815
Psychiatry & Neurology (Neurology)
5454 WISCONSIN AVE, SUITE 1720
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, SUITE 1535
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, SUITE 1535
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, SUITE 1535
CHEVY CHASE, MD 20815
Specialist
5454 WISCONSIN AVE, SUITE 1535
CHEVY CHASE, MD 20815
Ophthalmology
5454 WISCONSIN AVE, SUITE # 1540
CHEVY CHASE, MD 20815
Internal Medicine (Gastroenterology)
5454 WISCONSIN AVE, 1045
CHEVY CHASE, MD 20815
Physiological Laboratory
5454 WISCONSIN AVE, SUITE 1765
CHEVY CHASE, MD 20815

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851364434, enumerated as an "individual" on February 13, 2006.

The provider is located at 5454 WISCONSIN AVE SUITE 1535 CHEVY CHASE, MD 20815 and the phone number is (301) 652-8847.

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.