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RICARDO ANTONIO TAN MD INC.
NPI 1881082683
Internal Medicine - Allergy & Immunology in Sherman Oaks, CA

Active since December 31, 2014
5219 CEDROS AVE, SHERMAN OAKS, CA 91411(310) 709-2693 Get Directions Write a Review

NPPES record last updated: December 31, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ricardo Antonio Tan Md Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RICARDO ANTONIO TAN MD INC. (NPI 1881082683) is a healthcare organization registered as an allergy & immunology in Sherman Oaks, California and active in the NPI registry since December 2014. The organization lists Ricardp Antonio Tan, Owner, as its authorized official.

NPPES Registry Identity

NPI1881082683
Entity TypeOrganization
Primary Taxonomy207RA0201X
Legal Business NameRICARDO ANTONIO TAN MD INC.
Location Address5219 CEDROS AVESherman Oaks, CA 91411-4016
Mailing Address5219 Cedros AveSherman Oaks, CA 91411-4016 · (310) 709-2693
Phone(310) 709-2693
Organization SubpartNo
Authorized OfficialRicardp Antonio TanOwner · (310) 709-2693
Enumeration DateDecember 31, 2014
✔ NPI 1881082683 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0201X
License✔ Licensed in CA · A52236
Definition
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
5219 CEDROS AVE, Sherman Oaks, CA 91411
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ricardo Antonio Tan Md Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ricardo Antonio Tan MD Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Ricardo Tan, MD
Allergy/Immunology
NPI 1255353629
1950 SAWTELLE BLVD STE 138
Los Angeles, CA 90025
(310) 966-9022
✔ PECOS✔ Accepts Medicare8.6 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ricardo Antonio Tan MD Inc.'s NPI number?

The NPI number for Ricardo Antonio Tan MD Inc. is 1881082683. It was assigned to this organization in the NPPES registry on December 31, 2014.

Where is Ricardo Antonio Tan MD Inc. located?

Ricardo Antonio Tan MD Inc. is located at 5219 Cedros Ave, Sherman Oaks, CA 91411. The listed phone number is (310) 709-2693.

What is Ricardo Antonio Tan MD Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

Is Ricardo Antonio Tan MD Inc. enrolled in Medicare?

Yes. Ricardo Antonio Tan MD Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ricardo Antonio Tan MD Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Allergy/Immunology) reassigns their Medicare billing to Ricardo Antonio Tan MD Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ricardo Antonio Tan MD Inc. was last updated on December 31, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.