ELLEN LOIS PICHEY M.D.
NPI 1750447686
Preventive Medicine - Occupational Medicine in Mill Valley, CA

NPI Status: Active since December 28, 2006

Contact Information

3 ETON WAY
MILL VALLEY, CA
ZIP 94941
Phone: (415) 381-4128

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  • Individual
  • Female
  • Preventive Medicine
  • Occupational Medicine

About ELLEN LOIS PICHEY

This page provides the complete NPI Profile along with additional information for Ellen Lois Pichey, a provider established in Mill Valley, California with a medical specialization in Preventive Medicine, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1750447686 assigned on December 2006. The practitioner's primary taxonomy code is 2083X0100X with license number G52645 (CA). The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI
1750447686
Provider Name
ELLEN LOIS PICHEY M.D.
Gender
Female
Entity Type
Individual
Location Address
3 ETON WAY MILL VALLEY, CA 94941
Location Phone
(415) 381-4128
Mailing Address
3 ETON WAY MILL VALLEY, CA 94941
Mailing Phone
(415) 381-4128
Is Sole Proprietor?
No
Enumeration Date
12-28-2006
Last Update Date
05-03-2022
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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

Preventive Medicine Occupational Medicine

Taxonomy Code
2083X0100X
Type
Allopathic & Osteopathic Physicians
License No.
G52645
License State
CA
Taxonomy Description
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

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)
12083X0100XAllopathic & Osteopathic Physicians

Preventive Medicine
Occupational Medicine

49827 (MA)

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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 1750447686, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
7
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
6
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
6
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 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 + 7 + 1 + 0 + 0 + 8 + 4 + 1 + 4 + 6 + 1 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1750447686.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750447686, enumerated as an "individual" on December 28, 2006.

The provider is located at 3 ETON WAY MILL VALLEY, CA 94941 and the phone number is (415) 381-4128.

Preventive Medicine with taxonomy code 2083X0100X and a focus in Occupational Medicine.