ROSALIE A DE GUZMAN M.D.
NPI 1386675452
Pediatrics in Corona, CA

NPI Status: Active since July 06, 2006

Contact Information

823 S MAIN ST STE 100
CORONA, CA
ZIP 92882
Phone: (951) 270-0067

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  • Individual
  • Female
  • Pediatrics
  • CLIA Number: 05D0930542
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 07-14-2027

About ROSALIE DE GUZMAN

This page provides the complete NPI Profile along with additional information for Rosalie De Guzman, a pediatrician established in Corona, California with a medical specialization in Pediatrics. The healthcare provider is registered in the NPI registry with number 1386675452 assigned on July 2006. The practitioner's primary taxonomy code is 208000000X with license number A39804 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1386675452
Provider Name
ROSALIE A DE GUZMAN M.D.
Gender
Female
Entity Type
Individual
Location Address
823 S MAIN ST STE 100 CORONA, CA 92882
Location Phone
(951) 270-0067
Mailing Address
823 S MAIN ST STE 100 CORONA, CA 92882
Mailing Phone
(951) 270-0067
Is Sole Proprietor?
Yes
Enumeration Date
07-06-2006
Last Update Date
07-08-2007
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A pediatrician like Rosalie De Guzman is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, 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

Pediatrics

Taxonomy Code
208000000X
Type
Allopathic & Osteopathic Physicians
License No.
A39804
License State
CA
Taxonomy Description
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

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.

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
00A398040MEDICAID (05)CA 
F23803MEDICARE UPIN (02)CA 

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D0930542
Facility Type
Physician Office
Certificate Effective Date
July 15, 2025
Certificate Expiration Date
July 14, 2027
Laboratory Director
ROSALIE A. DE GUZMAN MD
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Rosalie De Guzman to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1386675452, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
7
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 8 → 16 → 7 6 → 12 → 3 5 → 10 → 1 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 6 + 6 + 1 + 2 + 7 + 1 + 0 + 4 + 1 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1386675452.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386675452, enumerated as an "individual" on July 06, 2006.

The provider is located at 823 S MAIN ST STE 100 CORONA, CA 92882 and the phone number is (951) 270-0067.

Pediatrics with taxonomy code 208000000X.

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