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

AINSLIE M JOHNSON MS
NPI 1861290496
Obstetrics & Gynecology in Grand Rapids, MI

Q: What is Ainslie Johnson's NPI number?

The NPI number for Ainslie Johnson is 1861290496. It was assigned to this individual provider in the NPPES registry on March 7, 2025.

Q: What is Ainslie Johnson's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Ainslie Johnson was last updated on June 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 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.

Active since March 07, 2025PECOS Enrolled

330 BARCLAY AVE NE STE 304, GRAND RAPIDS, MI 49503(616) 391-2160 Get Directions Write a Review

NPPES record last updated: June 25, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 7, 2026, Mar 7, 2025 (2 updates tracked since 2025).

On this page

About Ainslie M Johnson Ms NPPES

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

AINSLIE M JOHNSON MS (NPI 1861290496) is an individual obstetrics & gynecology provider in Grand Rapids, Michigan, licensed in Michigan (4351056332) and active in the NPI registry since March 2025. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861290496

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameAINSLIE M JOHNSONCredential: MS

Location Address330 BARCLAY AVE NE STE 304Grand Rapids, MI 49503-2527

Mailing Address330 Barclay Ave Ne Ste 304Grand Rapids, MI 49503-2527 · (616) 391-2160 · Fax (616) 391-2683

Phone(616) 391-2160

Sole ProprietorNo

Enumeration DateMarch 7, 2025

Last NPPES UpdateJune 25, 20262 updates tracked since enumeration

NPPES CertifiedJune 25, 2026

✔ NPI 1861290496 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in MI · 4351056332

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

330 BARCLAY AVE NE STE 304, Grand Rapids, MI 49503

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ainslie M Johnson Ms 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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

$126.15 typical visit price

range $54.34 – $166.68

Typical copayment $31.53 (range $13.58 – $41.67)

Most-billed visit code 99204

Established Patient

$68.07 typical visit price

range $17.09 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

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.

KAELA BROWN MD

Obstetrics & Gynecology