DR. EMMA LONGO MD, MPH
NPI 1740045293
Surgery in Los Angeles, CA

NPI Status: Active since February 14, 2024

Contact Information

2051 MARENGO ST
LOS ANGELES, CA
ZIP 90033
Phone: (323) 409-1000

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  • Individual
  • Female
  • Surgery

About EMMA LONGO

This page provides the complete NPI Profile along with additional information for Emma Longo, a provider established in Los Angeles, California with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1740045293 assigned on February 2024. The practitioner's primary taxonomy code is 208600000X with license number PTL20473 (CA). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1740045293
Provider Name
DR. EMMA LONGO MD, MPH
Gender
Female
Entity Type
Individual
Location Address
2051 MARENGO ST LOS ANGELES, CA 90033
Location Phone
(323) 409-1000
Mailing Address
1520 SAN PABLO ST STE 4300 LOS ANGELES, CA 90033
Mailing Phone
(323) 442-1900
Is Sole Proprietor?
No
Enumeration Date
02-14-2024
Last Update Date
05-26-2026
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A surgeon like Emma Longo treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

Location Map

Secondary Locations

  • 1500 San Pablo St
    Los Angeles, CA 90033
    (800) 872-2273

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

Surgery

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
PTL20473
License State
CA
Taxonomy Description
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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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 1740045293, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
4
Doubled → 8
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
2
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
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 4 → 8 0 → 0 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 8 + 0 + 0 + 4 + 1 + 0 + 2 + 1 + 8 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1740045293.

Other Providers at the Same Location


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

Occupational Therapist
2051 MARENGO ST
LOS ANGELES, CA 90033
Nurse Practitioner (Family)
2051 MARENGO ST, C3C162
LOS ANGELES, CA 90033
Nurse Practitioner (Acute Care)
2051 MARENGO ST
LOS ANGELES, CA 90033
Occupational Therapist
2051 MARENGO ST
LOS ANGELES, CA 90033
Emergency Medicine
2051 MARENGO ST, DEPT OF EM: INPT TOWER ROOM C1A100
LOS ANGELES, CA 90033
Nurse Practitioner (Acute Care)
2051 MARENGO ST
LOS ANGELES, CA 90033
Physical Therapist
2051 MARENGO ST, IPT 2ND FLOOR, C2B101
LOS ANGELES, CA 90033
Emergency Medicine
2051 MARENGO ST, DEPT OF EM: INPT TOWER ROOM C1A100
LOS ANGELES, CA 90033
General Acute Care Hospital
2051 MARENGO ST
LOS ANGELES, CA 90033
Physician Assistant
2051 MARENGO ST, LAC-USC MEDICAL CENTER, DEM, IPT, RM C1A108
LOS ANGELES, CA 90033
Nurse Practitioner (Family)
2051 MARENGO ST
LOS ANGELES, CA 90033
Dietitian, Registered (Nutrition, Pediatric)
2051 MARENGO ST, ROOM 1H212
LOS ANGELES, CA 90033
Nurse Practitioner (Family)
2051 MARENGO ST
LOS ANGELES, CA 90033
Surgery (Trauma Surgery)
2051 MARENGO ST, DIVISION OF TRAUMA AND CRITICAL CARE USC
LOS ANGELES, CA 90033
Psychiatric Unit
2051 MARENGO ST
LOS ANGELES, CA 90033
Psychiatric Hospital
2051 MARENGO ST
LOS ANGELES, CA 90033
Nurse Practitioner (Family)
2051 MARENGO ST
LOS ANGELES, CA 90033
Nurse Practitioner (Family)
2051 MARENGO ST
LOS ANGELES, CA 90033
Emergency Medicine
2051 MARENGO ST, INPATIENT TOWER - ROOM C1A100
LOS ANGELES, CA 90033
Anesthesiology
2051 MARENGO ST, IPT C4E100
LOS ANGELES, CA 90033

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1740045293, enumerated as an "individual" on February 14, 2024.

The provider is located at 2051 MARENGO ST LOS ANGELES, CA 90033 and the phone number is (323) 409-1000.

Surgery with taxonomy code 208600000X.