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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AI YAMASAKI MD
NPI 1376105122
Pediatrics - Hospice and Palliative Medicine in Grand Rapids, MI

Active since July 02, 2019PECOS Enrolled
35 MICHIGAN ST NE STE 3003, GRAND RAPIDS, MI 49503(616) 267-0868(616) 267-0362 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 6, 2026, Apr 3, 2026, May 10, 2023 and 3 more (6 updates tracked since 2019).

About Ai Yamasaki Md NPPES

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

AI YAMASAKI MD (NPI 1376105122) is an individual hospice and palliative medicine provider in Grand Rapids, Michigan, licensed in Michigan (4301506968) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376105122
Entity TypeIndividualFemale
Primary Taxonomy2080H0002X
Provider Legal NameAI YAMASAKICredential: MD
Location Address35 MICHIGAN ST NE STE 3003Grand Rapids, MI 49503-2528
Mailing Address100 Michigan St Ne # Mc845Grand Rapids, MI 49503-2560
Phone(616) 267-0868
Fax(616) 267-0362
Sole ProprietorNo
Enumeration DateJuly 2, 2019
Last NPPES UpdateOctober 6, 20266 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1376105122 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080H0002X
License✔ Licensed in MI · 4301506968
Definition
A pediatrician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
Also ListedPediatricsTaxonomy 208000000X · License 4301506968 (MI)
35 MICHIGAN ST NE STE 3003, Grand Rapids, MI 49503
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ai Yamasaki Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

2

Medicare enrollment records show Ai Yamasaki reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Spectrum Health Primary Care Partners
Same address
Pediatric Endocrinology
35 MICHIGAN ST NE STE 1800
Grand Rapids, MI 49503
  • Reassigned Medicare billing, Michigan enrollment
  • 2,446 clinicians in this Medicare group
NPI 1326599671 (616) 391-3933
Children's Hospital Pediatric Associates, Inc
742 mi
Pediatrics
300 LONGWOOD AVE
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,358 clinicians in this Medicare group
NPI 1457306664 (617) 355-6000

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

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.

MEGAN NICOLE HANNON RDN
Dietitian, Registered
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 486-9830
AKMAL SAYDAZAMOV DNP, RN, BSN, PNP
Nurse Practitioner
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2570
MARIA CAROLINA SILVA
Nurse Practitioner (Pediatrics)
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2200
AUBREY GRAHAM MD
Pediatrics
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2009
LEELA CHANDRASEKAR MD
Pediatrics (Pediatric Pulmonology)
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2200
NILDA DISARIS PEREZ PEREZ MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2500
KARA LURVEY MIEDEMA MSOT, OTR/L
Occupational Therapist
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2009
ANDREA GALAVIZ DEMONBRUN NP
Nurse Practitioner (Pediatrics)
35 MICHIGAN ST NE STE 3003
GRAND RAPIDS, MI 49503
Kent County (616) 267-2500

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 Ai Yamasaki's NPI number?

The NPI number for Ai Yamasaki is 1376105122. It was assigned to this individual provider in the NPPES registry on July 2, 2019.

Where is Ai Yamasaki located?

Ai Yamasaki practices at 35 Michigan St NE Ste 3003, Grand Rapids, MI 49503. The listed phone number is (616) 267-0868.

What is Ai Yamasaki's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Hospice and Palliative Medicine, with taxonomy code 2080H0002X.

Is Ai Yamasaki enrolled in Medicare?

Yes. Ai Yamasaki is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ai Yamasaki's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ai Yamasaki reassigns Medicare benefits to 2 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI) and Children's Hospital Pediatric Associates, Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ai Yamasaki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ai Yamasaki accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Ai Yamasaki as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ai Yamasaki was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.