GIGI N. GIRGIS, M.D.
NPI 1538409727
Specialist in Waltham, MA

NPI Status: Active since February 25, 2013

Contact Information

20 HOPE AVE
SUITE 203
WALTHAM, MA
ZIP 02453
Phone: (781) 647-3550
Fax: (781) 899-8845

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  • Organization
  • Specialist

About GIGI N. GIRGIS, M.D.

This page provides the complete NPI Profile along with additional information for Gigi N. Girgis, M.d., a provider established in Waltham, Massachusetts operating as a Specialist. The healthcare provider is registered in the NPI registry with number 1538409727 assigned on February 2013. The practitioner's primary taxonomy code is 174400000X with license number 50799 (MA). The provider is registered as an organization and their NPI record was last updated 12 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 authorized official of this NPI record is Gigi N Girgis M.d. (Owner)

NPI
1538409727
Provider Name
GIGI N. GIRGIS, M.D.
Entity Type
Organization
Location Address
20 HOPE AVE SUITE 203 WALTHAM, MA 02453
Location Phone
(781) 647-3550
Location Fax
(781) 899-8845
Mailing Address
20 HOPE AVE SUITE 203 WALTHAM, MA 02453
Mailing Phone
(781) 647-3550
Mailing Fax
(781) 899-8845
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-25-2013
Last Update Date
01-09-2014
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
50799
License State
MA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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

GIGI N GIRGIS M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(781) 647-3550

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
3000494MEDICAID (05)MA 
J04851OTHER (01)MAMEDICARE ID-TYPE UNSPECIFIED
A59814MEDICARE UPIN (02)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 1538409727, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 8 + 0 + 1 + 8 + 7 + 4 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1538409727.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
20 HOPE AVE, STE 206
WALTHAM, MA 02453
Ophthalmology
20 HOPE AVE, SUITE 212
WALTHAM, MA 02453
Internal Medicine (Gastroenterology)
20 HOPE AVE, STE G10
WALTHAM, MA 02453
Surgery
20 HOPE AVE, STE 207
WALTHAM, MA 02453
Psychiatry & Neurology (Psychiatry)
20 HOPE AVE, SUITE G05
WALTHAM, MA 02453
Midwife
20 HOPE AVE, STE 110
WALTHAM, MA 02453
Midwife
20 HOPE AVE, STE 110
WALTHAM, MA 02453
Psychiatry & Neurology (Neurology)
20 HOPE AVE, SUITE 203
WALTHAM, MA 02453
Internal Medicine (Pulmonary Disease)
20 HOPE AVE
WALTHAM, MA 02453
Nurse Practitioner (Family)
20 HOPE AVE, SUITE G10
WALTHAM, MA 02453
Dietitian, Registered
20 HOPE AVE, SUITE G03
WALTHAM, MA 02453
Psychiatry & Neurology (Neurology)
20 HOPE AVE, STE 103
WALITHAM, MA 02453
Internal Medicine
20 HOPE AVE, SUITE G10
WALTHAM, MA 02453
Obstetrics & Gynecology
20 HOPE AVE, #309
WALTHAM, MA 02453
Nurse Practitioner (Psychiatric/Mental Health)
20 HOPE AVE, SUITE G05
WALTHAM, MA 02453
Dentist (Pediatric Dentistry)
20 HOPE AVE, SUITE 306
WALTHAM, MA 02453
Pediatrics
20 HOPE AVE, SUITE G06
WALTHAM, MA 02453
Ophthalmology
20 HOPE AVE, SUITE 106
WALTHAM, MA 02453
Counselor (Mental Health)
20 HOPE AVE, G-05
WALTHAM, MA 02453
Dentist (General Practice)
20 HOPE AVE, #306
WALTHAM, MA 02453

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538409727, enumerated as an "organization" on February 25, 2013.

The provider is located at 20 HOPE AVE SUITE 203 WALTHAM, MA 02453 and the phone number is (781) 647-3550.

Specialist with taxonomy code 174400000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.