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ALISON Y MA M.D.
NPI 1609083237
Hospitalist in Portland, OR

Active since May 16, 2007PECOS EnrolledAccepts Medicare Assignment
87.76/100
CMS Quality Rating
9205 SW BARNES RD, PORTLAND, OR 97225(503) 216-2906 Get Directions Write a Review

NPPES record last updated: July 26, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 26, 2021, Mar 22, 2021, Apr 1, 2017 (3 updates tracked since 2017).

About Alison Y Ma M.d. NPPES

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

ALISON Y MA M.D. (NPI 1609083237) is an individual hospitalist provider in Portland, Oregon, licensed in Oregon (MD29096) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of Oregon Health Sciences University School Of Medicine (2006).

NPPES Registry Identity

NPI1609083237
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameALISON Y MACredential: M.D.
Location Address9205 SW BARNES RDPortland, OR 97225-6603
Mailing AddressPo Box 3158Portland, OR 97208-3158
Phone(503) 216-2906
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2006
Enumeration DateMay 16, 2007
Last NPPES UpdateJuly 26, 20213 updates tracked since enumeration
NPPES CertifiedJuly 26, 2021
✔ NPI 1609083237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in OR · MD29096
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD29096 (OR), MD60096568 (WA)
9205 SW BARNES RD, Portland, OR 97225
Open in Google Maps ↗

Other Identifiers 3

OtherP00848619OR · Rr Medicare - Ph&s
Medicaid500615598OR
Other0250881WA · L & I

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alison Y Ma M.d. 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 ID5698828226
PECOS Enrollment IDI20100121000733
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
153 services98 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
100 services99 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.76/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.17
Promoting Interoperability100
Improvement Activities40
Cost74.03

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. VICTOR NGUYEN PHAM M.D.
Hospitalist
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-2906
YEVGENY BULOCHNIK PHARMD
Pharmacist
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-3299
MR. DANIEL PAUL ADDY C.R.N.A.
Nurse Anesthetist, Certified Registered
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-1234
MR. JONATHAN DAVID CAULLEY PT
Physical Therapist
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-2610
EMILY ECHTENKAMP LCSW, CADC III, MAC
Counselor (Mental Health)
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-1234
BRIAN J KEARNS MD
Hospitalist
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-2906
DR. JAMES S PUTNAM MD
Radiology (Vascular & Interventional Radiology)
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-4830
MATTHEW CARSTENS FRANK M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
9205 SW BARNES RD
PORTLAND, OR 97225
Washington County (303) 859-4275

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 Alison Ma's NPI number?

The NPI number for Alison Ma is 1609083237. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Where is Alison Ma located?

Alison Ma practices at 9205 SW Barnes Rd, Portland, OR 97225. The listed phone number is (503) 216-2906.

What is Alison Ma's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Alison Ma enrolled in Medicare?

Yes. Alison Ma 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.

Is Alison Ma affiliated with any hospitals?

According to CMS data, Alison Ma is affiliated with Providence St Vincent Medical Center.

When was this NPI record last updated?

The NPPES record for Alison Ma was last updated on July 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.