DR. ESTELLA M GERAGHTY M.D., M.S, M.P.H
NPI 1154305712
Internal Medicine in Sacramento, CA

NPI Status: Active since December 06, 2005

Contact Information

4860 Y ST
SUITE B0400
SACRAMENTO, CA
ZIP 95817
Phone: (916) 734-2737
Fax: (916) 734-5484

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  • Individual
  • Female
  • Internal Medicine

About ESTELLA GERAGHTY

This page provides the complete NPI Profile along with additional information for Estella Geraghty, an internist established in Sacramento, California with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1154305712 assigned on December 2005. The practitioner's primary taxonomy code is 207R00000X with license number A87689 (CA). The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1154305712
Provider Name
DR. ESTELLA M GERAGHTY M.D., M.S, M.P.H
Gender
Female
Entity Type
Individual
Location Address
4860 Y ST SUITE B0400 SACRAMENTO, CA 95817
Location Phone
(916) 734-2737
Location Fax
(916) 734-5484
Mailing Address
4150 V ST PSSB 2400 SACRAMENTO, CA 95817
Mailing Phone
(916) 734-5265
Mailing Fax
(916) 734-5484
Is Sole Proprietor?
No
Enumeration Date
12-06-2005
Last Update Date
04-14-2011
Code Navigator

An internist like Estella Geraghty is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
A87689
License State
CA
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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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 1154305712, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).

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
1
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
4
Unchanged
Pos 5
3
Doubled → 6
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
7
Unchanged
Pos 9
1
Doubled → 2
Check
2
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 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 0 + 4 + 6 + 0 + 1 + 0 + 7 + 2 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1154305712.

Other Providers at the Same Location


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

Pharmacist (Geriatric)
4860 Y ST
SACRAMENTO, CA 95817
Clinic/Center (Pain)
4860 Y ST
SACRAMENTO, CA 95817
Psychiatry & Neurology (Neurology)
4860 Y ST
SACRAMENTO, CA 95817
Obstetrics & Gynecology
4860 Y ST, STE 2500
SACRAMENTO, CA 95817
Orthopaedic Surgery (Orthopaedic Trauma)
4860 Y ST, ACC #3800
SACRAMENTO, CA 95817
Orthopaedic Surgery
4860 Y ST, ACC #3800
SACRAMENTO, CA 95817
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
4860 Y ST, ACC #3800
SACRAMENTO, CA 95817
Orthopaedic Surgery (Hand Surgery)
4860 Y ST, ACC #3800
SACRAMENTO, CA 95817
Family Medicine
4860 Y ST, STE 1600
SACRAMENTO, CA 95817
Psychiatry & Neurology (Neurology)
4860 Y ST, SUITE 0100
SACRAMENTO, CA 95817
Orthopaedic Surgery (Orthopaedic Trauma)
4860 Y ST, ACC #3800
SACRAMENTO, CA 95817
Physical Medicine & Rehabilitation
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Physical Medicine & Rehabilitation
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Physical Medicine & Rehabilitation (Pediatric Rehabilitation Medicine)
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Physical Medicine & Rehabilitation
4860 Y ST, SUITE 3850
SACRAMENTO, CA 95817
Dermatology
4860 Y ST, DEPARTMENT OF DERMATOLOGY SUITE 3400
SACRAMENTO, CA 95817
Internal Medicine (Cardiovascular Disease)
4860 Y ST, SUITE 2820
SACRAMENTO, CA 95817
Internal Medicine (Cardiovascular Disease)
4860 Y ST, SUITE 0200
SACRAMENTO, CA 95817
Internal Medicine (Cardiovascular Disease)
4860 Y ST, SUITE 2820
SACRAMENTO, CA 95817
Internal Medicine (Cardiovascular Disease)
4860 Y ST, SUITE 2820
SACRAMENTO, CA 95817

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1154305712, enumerated as an "individual" on December 06, 2005.

The provider is located at 4860 Y ST SUITE B0400 SACRAMENTO, CA 95817 and the phone number is (916) 734-2737.

Internal Medicine with taxonomy code 207R00000X.