CASSIDY TSAY MD NPI 1508914409

NPI Record

The following NPI record includes the field values provided by the NPPES as well as the field definition as published in the Federal Register. The complete NPI record is also available for download in text, csv and xml formats.

Field Name Field Value Definition 1
NPI 1508914409 The 10-position all-numeric identification number assigned by the NPS to uniquely identify a health care provider. The NPI number includes an ISO standard check-digit in the 10th position. There is no intelligence about the health care provider in the number.
Entity Type Code 1 The 10-position all-numeric identification number assigned by the NPS to uniquely identify a health care provider. The NPI number includes an ISO standard check-digit in the 10th position. There is no intelligence about the health care provider in the number.
Provider Last Name Legal Name TSAY The Employer Identification Number (EIN), assigned by the IRS, of the provider being identified.
Provider First Name CASSIDY The name of the organization provider. If the provider is an organization, this is the legal business name.
Provider Credential Text MD The abbreviations for professional degrees or credentials used or held by the provider, if the provider is an individual. Examples are MD, DDS, CSW, CNA, AA, NP, RNA, or PSY. These credential designations will not be verified by NPS.
Provider First Line Business Practice Location Address 441 N LAKEVIEW AVE The first line location address of the provider being identified. For providers with more than one physical location, this is the primary location. This address cannot include a Post Office box.
Provider Business Practice Location Address City Name ANAHEIM The city name in the location address of the provider being identified.
Provider Business Practice Location Address State Name CA The State code in the location of the provider being identified.
Provider Business Practice Location Address Postal Code 928073028 The postal ZIP or zone code in the location address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available.
Provider Business Practice Location Address Country Code If outside U S US The country code in the location address of the provider being identified.
Provider Business Practice Location Address Telephone Number 8889882800 The telephone number associated with the location address of the provider being identified.
Provider Enumeration Date 1/8/2007 The fax number associated with the location address of the provider being identified.
Last Update Date 9/23/2008 The date the provider was assigned a unique identifier (assigned an NPI).
Provider Gender Code F The date that a record was last updated or changed.
Healthcare Provider Taxonomy Code 1 207R00000X The last name of the person authorized to submit the NPI application or to change NPS data for a health care provider.
Provider License Number 1 A60497 The first name of the authorized official.
Provider License Number State Code 1 CA The middle name of the authorized official.
Healthcare Provider Primary Taxonomy Switch 1 Y The title or position of the authorized official.
Is Sole Proprietor N The 10-position telephone number of the authorized official.

(1) Field Definition Source-. Federal Register / Vol. 69, No. 15 / Friday, January 23, 2004 / Rules and Regulations - Part II Department of Health and Human Services Office of the Secretary 45 CFR Part 162 HIPAA Administrative Simplification: Standard Unique Health Identifier for Health Care Providers; Final Rule

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What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

NPI Synchronization or Removal

All materials and services on this site are provided on an "as is" and "as available" basis without warranty of any kind. The NPI record is maintained by the National Plan & Provider Enumeration System (NPPES) and anyone may request this information and other NPPES health care provider data from HHS under The Freedom of Information Act (FOIA), Title 5 of the United States Code, section 552. To update the NPI records please contact the NPPES.

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