ILONA SYLVESTER M.D.
NPI 1215959291
Internal Medicine in Ventura, CA

NPI Status: Active since July 25, 2006

Contact Information

200 S WELLS RD
SUITE 200
VENTURA, CA
ZIP 93004
Phone: (805) 659-1740
Fax: (805) 659-9959

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  • Individual
  • Female
  • Internal Medicine

About ILONA SYLVESTER

This page provides the complete NPI Profile along with additional information for Ilona Sylvester, an internist established in Ventura, California with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1215959291 assigned on July 2006. The practitioner's primary taxonomy code is 207R00000X with license number A055316 (CA). The provider is registered as an individual and her NPI record was last updated 13 years ago.

NPI
1215959291
Provider Name
ILONA SYLVESTER M.D.
Gender
Female
Entity Type
Individual
Location Address
200 S WELLS RD SUITE 200 VENTURA, CA 93004
Location Phone
(805) 659-1740
Location Fax
(805) 659-9959
Mailing Address
200 S WELLS RD SUITE 200 VENTURA, CA 93004
Mailing Phone
(805) 659-1740
Mailing Fax
(805) 659-9959
Is Sole Proprietor?
No
Enumeration Date
07-25-2006
Last Update Date
03-22-2013
Code Navigator

An internist like Ilona Sylvester 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.
A055316
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.

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.

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
95-1683892OTHER (01)CAOTHER INSURANCE
058608MEDICARE ID-TYPE UNSPECIFIED (04)CARH MEDICARE
RHM18553HMEDICAID (05)CA 
050394OTHER (01)CABLUE CROSS
058553MEDICARE ID-TYPE UNSPECIFIED (04)CARH MEDICARE
RHM08609FMEDICAID (05)CA 
050394MEDICARE ID-TYPE UNSPECIFIED (04)CAMEDICARE
058609MEDICARE ID-TYPE UNSPECIFIED (04)CARH MEDICARE
RHM08608FMEDICAID (05)CA 
ZZT40394FMEDICAID (05)CA 

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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 1215959291, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 1 + 8 + 5 + 1 + 8 + 2 + 1 + 8 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1215959291.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Psychologist
200 S WELLS RD, SUITE 350 CLINICAS DEL CMAINO REAL INC
VENTURA, CA 93004
Psychiatry & Neurology (Psychiatry)
200 S WELLS RD
VENTURA, CA 93004
Psychologist
200 S WELLS RD, SUITE 200 CLINICAS DEL CAMINO REAL INC
VENTURA, CA 93004
Optometrist
200 S WELLS RD, CLINICAS DEL CAMINO REAL INC SUITE 250
VENTURA, CA 93004
Social Worker (Clinical)
200 S WELLS RD, CLINICAS DEL CAMINO REAL SUITE 250
VENTURA, CA 93004
Marriage & Family Therapist
200 S WELLS RD, SUITE 225
VENTURA, CA 93004
Dentist
200 S WELLS RD, 200
VENTURA, CA 93004
Social Worker (Clinical)
200 S WELLS RD
VENTURA, CA 93004
Community/Behavioral Health
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Social Worker (Clinical)
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Psychologist (Clinical)
200 S WELLS RD, #100
VENTURA, CA 93004
Clinic/Center
200 S WELLS RD
VENTURA, CA 93004
Physician Assistant
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Family Medicine
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Dentist
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Pediatrics
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Internal Medicine
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Dentist
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Dentist (General Practice)
200 S WELLS RD, SUITE 200
VENTURA, CA 93004

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215959291, enumerated as an "individual" on July 25, 2006.

The provider is located at 200 S WELLS RD SUITE 200 VENTURA, CA 93004 and the phone number is (805) 659-1740.

Internal Medicine with taxonomy code 207R00000X.

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