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ELLEN MCDONALD, M.D., INC.
NPI 1639304843
Internal Medicine in Pasadena, CA

Active since May 18, 2009CLIA 05D2050937 · Waiver
800 FAIRMOUNT AVE, SUITE 210, PASADENA, CA 91105(626) 872-4195(626) 628-1836 Get Directions Write a Review

NPPES record last updated: December 2, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ellen Mcdonald, M.d., Inc. NPPES

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

ELLEN MCDONALD, M.D., INC. (NPI 1639304843) is a healthcare organization registered as an internal medicine in Pasadena, California and active in the NPI registry since May 2009. The organization holds a CLIA Waiver certificate valid through December 9, 2026 and lists Ellen Kathleen Mcdonald, President, as its authorized official.

NPPES Registry Identity

NPI1639304843
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameELLEN MCDONALD, M.D., INC.
Location Address800 FAIRMOUNT AVE, SUITE 210Pasadena, CA 91105-3150
Mailing Address800 Fairmount Ave, Suite 210Pasadena, CA 91105-3150 · (626) 872-4195 · Fax (626) 628-1836
Phone(626) 872-4195
Fax(626) 628-1836
Organization SubpartNo
Authorized OfficialEllen Kathleen McdonaldPresident · (626) 872-4195
Enumeration DateMay 18, 2009
Last NPPES UpdateDecember 2, 2010
✔ NPI 1639304843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A102543
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
800 FAIRMOUNT AVE, Pasadena, CA 91105
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2050937

Ellen Mcdonald MD Inc · Pasadena, CA
Active · expires Dec 9, 2026
CLIA Number05D2050937
Laboratory TypePhysician Office
Certificate Effective DateDecember 10, 2024
Certificate Expiration DateDecember 9, 2026
Laboratory DirectorEllen K. Mcdonald
Laboratory Phone(626) 872-4195
Laboratory LocationEllen Mcdonald MD Inc800 Fairmount Ave Ste 210, Pasadena, CA 91105
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 20

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

DR. RUBY BATIN M.D.
Pediatrics
800 FAIRMOUNT AVE, STE 110
PASADENA, CA 91105
Los Angeles County (626) 795-7051
DR. JASON REGINALD SPEARS D.D.S.
Dentist
800 FAIRMOUNT AVE, SUITE 203
PASADENA, CA 91105
Los Angeles County (626) 792-1344
MAGDALENA C ARENAS MD
Internal Medicine (Pulmonary Disease)
800 FAIRMOUNT AVE
PASADENA, CA 91105
Los Angeles County (626) 449-1199
MARK POWELL MD
Pediatrics
800 FAIRMOUNT AVE, SUITE 415
PASADENA, CA 91105
Los Angeles County (626) 449-8440
CHRISTIAAN P HALLMAN M.D.
Dermatology
800 FAIRMOUNT AVE, SUITE 310
PASADENA, CA 91105
Los Angeles County (626) 795-2007
MICHAEL PAUL MILLER, MD, INC.
Ophthalmology
800 FAIRMOUNT AVE, SUITE 101
PASADENA, CA 91105
Los Angeles County (626) 585-8700
LISA P. URIBE, M.D., INC.
Internal Medicine
800 FAIRMOUNT AVE, SUITE 210
PASADENA, CA 91105
Los Angeles County (626) 243-2221
MELINDA MEDEIROS NP
Nurse Practitioner (Acute Care)
800 FAIRMOUNT AVE, SUITE 220
PASADENA, CA 91105
Los Angeles County (626) 486-0181

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 Ellen Mcdonald, M.D., Inc.'s NPI number?

The NPI number for Ellen Mcdonald, M.D., Inc. is 1639304843. It was assigned to this organization in the NPPES registry on May 18, 2009.

Where is Ellen Mcdonald, M.D., Inc. located?

Ellen Mcdonald, M.D., Inc. is located at 800 Fairmount Ave Suite 210, Pasadena, CA 91105. The listed phone number is (626) 872-4195.

What is Ellen Mcdonald, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does Ellen Mcdonald, M.D., Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2050937) is associated with this NPI, valid through December 9, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Ellen Mcdonald, M.D., Inc. was last updated on December 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.