Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Angela Ross Hay, MD

Individual provider Pulmonary Disease Physician · NPI 1194737080

Dr. Angela Ross Hay, MD is an Internal Medicine in Arcadia, California. Graduated from Indiana University School of Medicine in 1989, 37 years ago. Practices with Healthcare Partners Affiliates Medical Group, a 790-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Trained at
Indiana University School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

450 E Huntington Dr
Arcadia, CA 91006-3748
Phone: (626) 462-1884
Fax: (626) 445-1542
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 100 W California Blvd, Pasadena, CA 91105-3010 — (626) 795-2244

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence G70207 (CA)

Record details

NPI number1194737080
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2006
Last updated in NPPESDecember 26, 2025
Certification dateDecember 26, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesCRITICAL CARE (INTENSIVISTS), PULMONARY DISEASE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Healthcare Partners Affiliates Medical Group — 790 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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