SHIRLEY WENG-YING MA CNM, WHNP
NPI 1851053789
Advanced Practice Midwife in Portland, OR

Q: What is Shirley Ma's NPI number?

The NPI number for Shirley Ma is 1851053789. It was assigned to this individual provider in the NPPES registry on October 7, 2021.

Q: What is Shirley Ma's specialty?

The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.

Q: When was this NPI record last updated?

The NPPES record for Shirley Ma was last updated on January 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since October 07, 2021PECOS EnrolledAccepts Medicare Assignment

10566 SE WASHINGTON ST, PORTLAND, OR 97216(503) 734-3800(503) 734-3808 Get Directions Write a Review

NPPES record last updated: January 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 30, 2026, Dec 20, 2021, Oct 7, 2021 (3 updates tracked since 2021).

On this page

About Shirley Weng-ying Ma Cnm, Whnp NPPES

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

SHIRLEY WENG-YING MA CNM, WHNP (NPI 1851053789) is an individual advanced practice midwife in Portland, Oregon, licensed in Oregon (202114075NP-PP) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1851053789

Entity TypeIndividualFemale

Primary Taxonomy367A00000X

Provider Legal NameSHIRLEY WENG-YING MACredential: CNM, WHNP

Location Address10566 SE WASHINGTON STPortland, OR 97216-2809

Mailing Address7650 Sw Beveland Rd Ste 200Portland, OR 97223-8692 · (503) 601-3615 · Fax (503) 646-1683

Phone(503) 734-3800

Fax(503) 734-3808

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateOctober 7, 2021

Last NPPES UpdateJanuary 30, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 30, 2026

✔ NPI 1851053789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAdvanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367A00000X

License✔ Licensed in OR · 202114075NP-PP

Definition

Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.

Also ListedNurse Practitioner · Women's HealthTaxonomy 363LW0102X · License 202114075NP-PP (OR)

10566 SE WASHINGTON ST, Portland, OR 97216

Open in Google Maps ↗

Other Identifiers 1

Medicaid500802727OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

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

Shirley Weng-ying Ma Cnm, Whnp 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 ID4981095775

PECOS Enrollment IDI20220105002680

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 Shirley Ma reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Women's Healthcare Associates, LLC

5.1 mi

Specialist

7650 SW BEVELAND RD, SUITE 200
Portland, OR 97223

Reassigned Medicare billing, Oregon enrollment
Medicare enrollment name: Womens Healthcare Associates LLC
127 clinicians in this Medicare group

NPI 1346296142 (503) 601-3615

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97216 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

$90.51 typical visit price

range $58.99 – $176.88

Typical copayment $22.62 (range $14.74 – $44.22)

Most-billed visit code 99203

Established Patient

$73.28 typical visit price

range $19.32 – $144.79

Typical copayment $18.32 (range $4.83 – $36.19)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

LAUREN S MACKENZIE CNM

Advanced Practice Midwife