DR. JEFFREY A SCHULDENFREI MD
NPI 1497828701
Dermatology in Gaithersburg, MD

NPI Status: Active since November 16, 2006

Contact Information

501 N FREDERICK AVE
GAITHERSBURG, MD
ZIP 20877
Phone: (301) 258-7180
Fax: (301) 258-7294

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  • Individual
  • Male
  • Dermatology

About JEFFREY SCHULDENFREI

This page provides the complete NPI Profile along with additional information for Jeffrey Schuldenfrei, a provider established in Gaithersburg, Maryland with a medical specialization in Dermatology. The healthcare provider is registered in the NPI registry with number 1497828701 assigned on November 2006. The practitioner's primary taxonomy code is 207N00000X with license number D0024130 (MD). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1497828701
Provider Name
DR. JEFFREY A SCHULDENFREI MD
Gender
Male
Entity Type
Individual
Location Address
501 N FREDERICK AVE GAITHERSBURG, MD 20877
Location Phone
(301) 258-7180
Location Fax
(301) 258-7294
Mailing Address
2101 E JEFFERSON ST KAISER PERMANENTE MEDICARE ENROLLMENT ROCKVILLE, MD 20852
Mailing Phone
(301) 816-2424
Is Sole Proprietor?
No
Enumeration Date
11-16-2006
Last Update Date
11-16-2011
Code Navigator

A dermatologist like Jeffrey Schuldenfrei 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.
D0024130
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207N00000XAllopathic & Osteopathic Physicians

Dermatology

0101037048 (VA)
2207N00000XAllopathic & Osteopathic Physicians

Dermatology

MD039143 (DC)

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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 1497828701, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
0
Doubled → 0
Check
1
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 9 → 18 → 9 8 → 16 → 7 8 → 16 → 7 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 6 + 2 + 1 + 6 + 7 + 0 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1497828701.

Other Providers at the Same Location


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

Obstetrics & Gynecology
501 N FREDERICK AVE, KAISER PERMANENTE MEDICAL CENTER
GAITHERSBURG, MD 20877
Dentist (Orthodontics and Dentofacial Orthopedics)
501 N FREDERICK AVE, SUITE 102
GAITHERSBURG, MD 20877
Durable Medical Equipment & Medical Supplies (Customized Equipment)
501 N FREDERICK AVE
GAITHERSBURG, MD 20877
Nurse Practitioner
501 N FREDERICK AVE
GAITHERSBURG, MD 20877
Dentist (General Practice)
501 N FREDERICK AVE, SUITE #109
GAITHERSBURG, MD 20877
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
501 N FREDERICK AVE
GAITHERSBURG, MD 20877
Physical Medicine & Rehabilitation (Pain Medicine)
501 N FREDERICK AVE, SUITE 302
GAITHERSBURG, MD 20877
Physical Medicine & Rehabilitation (Pain Medicine)
501 N FREDERICK AVE, SUITE302
GAITHERSBURG, MD 20877
Dentist
501 N FREDERICK AVE, #206
GAITHERSBURG, MD 20877
Social Worker (Clinical)
501 N FREDERICK AVE, SUITE 300
GAITHERSBURG, MD 20877
Counselor (Mental Health)
501 N FREDERICK AVE, SUITE 300
GAITHERSBURG, MD 20877
Internal Medicine
501 N FREDERICK AVE, SUITE 304
GAITHERSBURG, MD 20877
Internal Medicine
501 N FREDERICK AVE, SUITE 304
GAITHERSBURG, MD 20877
Social Worker (Clinical)
501 N FREDERICK AVE, STE 300
GAITHERSBURG, MD 20877
Social Worker (Clinical)
501 N FREDERICK AVE, SUITE 300
GAITHERSBURG, MD 20877
Physician Assistant
501 N FREDERICK AVE, SUITE #302
GAITHERSBURG, MD 20877
Pediatrics
501 N FREDERICK AVE
GAITHERSBURG, MD 20877
Obstetrics & Gynecology
501 N FREDERICK AVE, GAITHERSBURG MEDICAL CENTER
GAITHERSBURG, MD 20877
Internal Medicine
501 N FREDERICK AVE, KAISER PERMANENTE GAITHERSBURG MEDICAL CENTER
GAITHERSBURG, MD 20877
Psychologist (Clinical)
501 N FREDERICK AVE
GAITHERSBURG, MD 20877

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497828701, enumerated as an "individual" on November 16, 2006.

The provider is located at 501 N FREDERICK AVE GAITHERSBURG, MD 20877 and the phone number is (301) 258-7180.

Dermatology with taxonomy code 207N00000X.