DR. BARBARA CHRISTINE WILLIAMSON M.D.
NPI 1972596690
Dermatology in Largo, MD
NPI Status: Active since August 28, 2005
Contact Information
1400 MERCANTILE LN
STE#110
LARGO, MD
ZIP 20774
Phone: (301) 772-9775
Fax: (301) 772-8395
- Individual
- Female
- Dermatology
About BARBARA WILLIAMSON
This page provides the complete NPI Profile along with additional information for Barbara Williamson, a provider established in Largo, Maryland with a medical specialization in Dermatology. The healthcare provider is registered in the NPI registry with number 1972596690 assigned on August 2005. The practitioner's primary taxonomy code is 207N00000X with license number D0031566 (MD). The provider is registered as an individual and her NPI record was last updated 19 years ago.
- NPI
- 1972596690
- Provider Name
- DR. BARBARA CHRISTINE WILLIAMSON M.D.
- Other Name
- MRS. BARBARA WILLIAMSON HENRY
- Other Name Type
- Other Name (5)
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1400 MERCANTILE LN STE#110 LARGO, MD 20774
- Location Phone
- (301) 772-9775
- Location Fax
- (301) 772-8395
- Mailing Address
- PO BOX 493 GREENBELT, MD 20768
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-28-2005
- Last Update Date
- 07-08-2007
- Code Navigator
A dermatologist like Barbara Williamson is a medical specialty involving the management of skin conditions and diseases. Dermatologists diagnose some sexually transmitted diseases, warts, cancer, acne, dermatitis and may offer cosmetic treatments, and therapies that reduce age spots and wrinkles.
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
Dermatology
- Taxonomy Code
- 207N00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- D0031566
- License State
- MD
- Taxonomy Description
- A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
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.
*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 |
|---|---|---|---|
| C61954 | MEDICARE UPIN (02) | MD | |
| 348025 | OTHER (01) | MD | UNITEDHEALTHCARE/MAMSI |
| 560789 | OTHER (01) | MD | AETNA |
| 6732BC | OTHER (01) | MD | CAREFIRST MARYLAND |
| 9601-0001 | OTHER (01) | MD | CAREFIRSTD.C. |
| WI121164 | MEDICARE 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 1972596690, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
LARGO, MD 20774
LARGO, MD 20774
LARGO, MD 20774
LARGO, MD 20774
LARGO, MD 20774
LARGO, MD 20774
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1972596690, enumerated as an "individual" on August 28, 2005.
The provider is located at 1400 MERCANTILE LN STE#110 LARGO, MD 20774 and the phone number is (301) 772-9775.
Dermatology with taxonomy code 207N00000X.
The provider might be accepting Accepts: Medicare, Medicaid and Aetna. Please consult your insurance carrier or call the provider to verify.
