EISON DE GUZMAN MD
NPI 1942839667
Internal Medicine - Cardiovascular Disease in Newark, NJ
NPI Status: Active since April 04, 2020
Contact Information
185 S ORANGE AVE
NEWARK, NJ
ZIP 07103
Phone: (973) 972-4731
- Individual
- Male
- Internal Medicine
- Cardiovascular Disease
About EISON DE GUZMAN
This page provides the complete NPI Profile along with additional information for Eison De Guzman, an internist established in Newark, New Jersey with a medical specialization in Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1942839667 assigned on April 2020. The practitioner's primary taxonomy code is 207RC0000X with license number 25MA12625900 (NJ). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1942839667
- Provider Name
- EISON DE GUZMAN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 185 S ORANGE AVE NEWARK, NJ 07103
- Location Phone
- (973) 972-4731
- Mailing Address
- 185 S ORANGE AVE NEWARK, NJ 07103
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 04-04-2020
- Last Update Date
- 03-26-2026
- Code Navigator
An internist like Eison De Guzman 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 Cardiovascular Disease
- Taxonomy Code
- 207RC0000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 25MA12625900
- License State
- NJ
- Taxonomy Description
- An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
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) |
|---|---|---|---|---|
| 1 | 390200000X | Student, Health Care | Student in an Organized Health Care Education/Training Program |
Reviews for EISON DE GUZMAN MD
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1942839667, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1942839667, enumerated as an "individual" on April 04, 2020.
The provider is located at 185 S ORANGE AVE NEWARK, NJ 07103 and the phone number is (973) 972-4731.
Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.
