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JOSHUA BENJAMIN ANG DO
NPI 1699398016
Allergy & Immunology in Pasadena, CA

Active since May 20, 2020PECOS EnrolledAccepts Medicare Assignment
94 N MADISON AVE, PASADENA, CA 91101(818) 858-2071(626) 792-2328 Get Directions Write a Review

NPPES record last updated: July 19, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 10, 2025, May 20, 2020 (2 updates tracked since 2020).

About Joshua Benjamin Ang Do NPPES

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

JOSHUA BENJAMIN ANG DO (NPI 1699398016) is an individual allergy & immunology provider in Pasadena, California, licensed in California (20A23828) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS and is a graduate of Philadelphia College Of Osteopathic Medicine (2020).

NPPES Registry Identity

NPI1699398016
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameJOSHUA BENJAMIN ANGCredential: DO
Location Address94 N MADISON AVEPasadena, CA 91101-1740
Mailing Address94 N Madison AvePasadena, CA 91101-1740 · (818) 858-2071 · Fax (626) 792-2328
Phone(818) 858-2071
Fax(626) 792-2328
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2020
Enumeration DateMay 20, 2020
Last NPPES UpdateJuly 19, 20252 updates tracked since enumeration
NPPES CertifiedJuly 19, 2025
✔ NPI 1699398016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in CA · 20A23828
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
94 N MADISON AVE, Pasadena, CA 91101
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Joshua Benjamin Ang Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6608394945
PECOS Enrollment IDI20250520001399
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Joshua Ang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Allergy And Asthma Specialist Doctors, Inc.
Same address
Allergy & Immunology
94 N MADISON AVE
Pasadena, CA 91101
  • Reassigned Medicare billing, California enrollment
  • 8 clinicians in this Medicare group
NPI 1245794866 (818) 558-5828

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

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

FLORA ABRAHAMIAN VARDANIAN MD
Allergy & Immunology
94 N MADISON AVE
PASADENA, CA 91101
Los Angeles County (626) 792-4171
ALLERGY AND ASTHMA SPECIALIST DOCTORS, INC.
Allergy & Immunology
94 N MADISON AVE
PASADENA, CA 91101
Los Angeles County (818) 558-5828
OPHELIA MEI-CHUANG CHEN M.D.
Specialist
94 N MADISON AVE
PASADENA, CA 91101
Los Angeles County (626) 792-4171
FREDERICK HO, M.D. A PROF. CORPORATION
Specialist
94 N MADISON AVE
PASADENA, CA 91101
Los Angeles County (626) 792-4171

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 Joshua Ang's NPI number?

The NPI number for Joshua Ang is 1699398016. It was assigned to this individual provider in the NPPES registry on May 20, 2020.

Where is Joshua Ang located?

Joshua Ang practices at 94 N Madison Ave, Pasadena, CA 91101. The listed phone number is (818) 858-2071.

What is Joshua Ang's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Joshua Ang enrolled in Medicare?

Yes. Joshua Ang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Joshua Ang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joshua Ang reassigns Medicare benefits to Allergy And Asthma Specialist Doctors, Inc. (Pasadena, CA). The 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 Joshua Ang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joshua Ang was last updated on July 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.