EPSTEIN AND TUFFANELLI MDS INC
NPI 1013027580
Dermatology in San Francisco, CA

NPI Status: Active since August 30, 2006

Contact Information

450 SUTTER ST
SUITE 1306
SAN FRANCISCO, CA
ZIP 94108
Phone: (415) 781-4083
Fax: (415) 781-4104

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  • Organization
  • Dermatology
  • CLIA Number: 05D0688609
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 09-19-2027

About EPSTEIN AND TUFFANELLI MDS INC

This page provides the complete NPI Profile along with additional information for Epstein And Tuffanelli Mds Inc, a provider established in San Francisco, California operating as a Dermatology. The healthcare provider is registered in the NPI registry with number 1013027580 assigned on August 2006. The practitioner's primary taxonomy code is 207N00000X. The provider is registered as an organization and their NPI record was last updated 18 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The provider's other name is Epstein And Tuffanelli Mds Inc. The authorized official of this NPI record is Prof. John Howard Epstein Md (President)

NPI
1013027580
Provider Legal Name
NORMAN H EPSTEIN MD, JOHN H EPSTEIN MD, AND DENNY L TUFFANELLI MD, INC
Other Organization Name
EPSTEIN AND TUFFANELLI MDS INC
Other Name Type
Other Name (5)
Entity Type
Organization
Location Address
450 SUTTER ST SUITE 1306 SAN FRANCISCO, CA 94108
Location Phone
(415) 781-4083
Location Fax
(415) 781-4104
Mailing Address
450 SUTTER ST SUITE 1306 SAN FRANCISCO, CA 94108
Mailing Phone
(415) 781-4083
Mailing Fax
(415) 781-4104
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-30-2006
Last Update Date
07-16-2008
Code Navigator

A dermatologist like Epstein And Tuffanelli Mds Inc 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
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

PROF. JOHN HOWARD EPSTEIN MD

Authorized Official Title
PRESIDENT
Authorized Official Phone
(415) 781-4083

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D0688609
Facility Type
Physician Office
Certificate Effective Date
September 20, 2025
Certificate Expiration Date
September 19, 2027
Laboratory Director
BEVERLY A. EPSTEIN MD
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Epstein And Tuffanelli Mds Inc in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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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 1013027580, 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 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
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
0
Doubled → 0
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
5
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
0
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 1 → 2 0 → 0 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 + 0 + 2 + 3 + 0 + 2 + 1 + 4 + 5 + 1 + 6 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1013027580.

Other Providers at the Same Location


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

Dentist (General Practice)
450 SUTTER ST, SUITE 1330
SAN FRANCISCO, CA 94108
Dermatology
450 SUTTER ST, STE 1306
SAN FRANCISCO, CA 94108
Physical Therapist (Orthopedic)
450 SUTTER ST, SUITE 1038
SAN FRANCISCO, CA 94108
Surgery (Surgery of the Hand)
450 SUTTER ST, SUITE 1533
SAN FRANCISCO, CA 94108
Dentist
450 SUTTER ST, SUITE 2340
SAN FRANCISCO, CA 94108
Podiatrist
450 SUTTER ST, #1101
SAN FRANCISCO, CA 94108
Dermatology
450 SUTTER ST, STE 1306
SAN FRANCISCO, CA 94108
Dentist (General Practice)
450 SUTTER ST, SUITE 2130
SAN FRANCISCO, CA 94108
Otolaryngology
450 SUTTER ST, SUITE 933
SAN FRANCISCO, CA 94108
Dentist
450 SUTTER ST, SUITE 2530
SAN FRANCISCO, CA 94108
Dermatology
450 SUTTER ST, SUITE #830
SAN FRANCISCO, CA 94108
Physical Therapist
450 SUTTER ST, SUITE 2640
SAN FRANCISCO, CA 94108
Ophthalmology
450 SUTTER ST, SUITE 1918
SAN FRANCISCO, CA 94108
Dentist (Oral and Maxillofacial Surgery)
450 SUTTER ST, SUITE 2230
SAN FRANCISCO, CA 94108
Dentist (General Practice)
450 SUTTER ST, SUITE 1839
SAN FRANCISCO, CA 94108
Physical Therapist
450 SUTTER ST, SUITE #2640
SAN FRANCISCO, CA 94108
Dentist (General Practice)
450 SUTTER ST, SUITE 1800
SAN FRANCISCO, CA 94108
Dentist (General Practice)
450 SUTTER ST, STE 1819
SAN FRANCISCO, CA 94108
Dentist (Prosthodontics)
450 SUTTER ST, 2600
SAN FRANCISCO, CA 94108
Dentist
450 SUTTER ST, SUITE 2428
SAN FRANCISCO, CA 94108

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013027580, enumerated as an "organization" on August 30, 2006.

The provider is located at 450 SUTTER ST SUITE 1306 SAN FRANCISCO, CA 94108 and the phone number is (415) 781-4083.

Dermatology with taxonomy code 207N00000X.