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Alison Y Ma, M.D.

Hospitalist Physician in Portland, OR · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609083237

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Registry record

Entity type Individual (Type 1)
Name Alison Y Ma
Credential M.D.
Sex Female
Practice address 9205 Sw Barnes Rd, Portland, OR, 97225
Phone (503) 216-2906
Enumeration date May 16, 2007
Last updated in NPPES Jul 26, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD60096568 (WA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD29096 (OR) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MD29096 (OR) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
500615598 Medicaid OR -
P00848619 Other OR RR MEDICARE - PH&S
0250881 Other WA L & I

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Alison Ma practice?
The practice location on file with NPPES is in Portland, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alison Ma?
The National Provider Identifier (NPI) for Alison Ma is 1609083237, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-26.