DR. JOYCE GIAMMATTEI DRPH, RD, CDE
NPI 1194861450
Dietitian, Registered - Nutrition, Metabolic in Sonoma, CA

NPI Status: Active since January 30, 2007

Contact Information

430 W NAPA ST STE F
SONOMA, CA
ZIP 95476
Phone: (707) 939-6070

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  • Individual
  • Female
  • Years of Experience 25
  • Dietitian, Registered
  • Nutrition, Metabolic
  • Accepts Medicare Approved Payment

About JOYCE GIAMMATTEI

This page provides the complete NPI Profile along with additional information for Joyce Giammattei, a provider established in Sonoma, California with a medical specialization in Dietitian, Registered, focusing in nutrition, metabolic and more than 25 years of experience. She graduated from Loma Linda University School Of Medicine in 2001. The healthcare provider is registered in the NPI registry with number 1194861450 assigned on January 2007. The practitioner's primary taxonomy code is 133VN1006X with license number 818435 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1194861450
Provider Name
DR. JOYCE GIAMMATTEI DRPH, RD, CDE
Gender
Female
Entity Type
Individual
Location Address
430 W NAPA ST STE F SONOMA, CA 95476
Location Phone
(707) 939-6070
Mailing Address
430 W NAPA ST STE F SONOMA, CA 95476
Mailing Phone
(707) 939-6070
Medical School Name
LOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2001
Is Sole Proprietor?
Yes
Enumeration Date
01-30-2007
Last Update Date
07-13-2007
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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

Dietitian, Registered Nutrition, Metabolic

Taxonomy Code
133VN1006X
Type
Dietary & Nutritional Service Providers
License No.
818435
License State
CA
Taxonomy Description
A registered dietitian who achieves specialized competency in metabolic nutrition.

Medicare Participation & PECOS Enrollment Status

Joyce Giammattei is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • PECOS PAC ID: 5799762324

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20040701001090

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

Reviews for DR. JOYCE GIAMMATTEI DRPH, RD, CDE

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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 1194861450, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
1
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
0
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 9 → 18 → 9 8 → 16 → 7 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 8 + 4 + 1 + 6 + 6 + 2 + 4 + 1 + 0 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1194861450.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Family Medicine
430 W NAPA ST STE F
SONOMA, CA 95476
Nurse Practitioner (Family)
430 W NAPA ST STE F
SONOMA, CA 95476
Clinic/Center (Federally Qualified Health Center (FQHC))
430 W NAPA ST STE F
SONOMA, CA 95476

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1194861450, enumerated as an "individual" on January 30, 2007.

The provider is located at 430 W NAPA ST STE F SONOMA, CA 95476 and the phone number is (707) 939-6070.

Dietitian, Registered with taxonomy code 133VN1006X and a focus in Nutrition, Metabolic.