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Internal Medicine

Juliana J. Grey, MD

Sees patients in Grand Rapids, MI · Michigan

Summary

Dr. Juliana J. Grey, MD is an internal medicine doctor at 3230 Eagle Park Dr NE, Suite 101, Grand Rapids, MI 49525. Phone: (616) 954-0600. Accepts Medicare assignment. In 2024, Juliana J. Grey had 307 Original Medicare patients and 183,359 services. NPI 1750355640. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3230 Eagle Park Dr NE, Suite 101, Grand Rapids, MI 49525 · Directions
  • Phone: (616) 954‑0600
  • Medicare: Accepts Medicare assignment
  • Group practice: Infusion Associates PLLC
  • Medical school: Michigan State University College Of Human Medicine · graduated 1990 (36 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Juliana J. Grey, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Juliana J. Grey accept Medicare assignment?
Yes. Medicare's clinician data says Juliana J. Grey accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Juliana J. Grey see?
In 2024, CMS data shows 307 Original Medicare patients and 183,359 services for Juliana J. Grey. This counts Original Medicare only and measures volume, not quality.
What is Juliana J. Grey's NPI number?
1750355640. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Juliana J. Grey, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients307
Services billed to Medicare183,359
Different services or procedures73
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Injection, ferric carboxymaltose, 1 mg (J1439)20,250 services
  2. Injection, vedolizumab, intravenous, 1 mg (J3380)13,200 services
  3. Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (J1569)9,984 services
  4. Injection, iron sucrose, 1 mg (J1756)7,500 services
  5. Injection, infliximab, excludes biosimilar, 10 mg (J1745)6,880 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure66%
  • High cholesterol62%
  • Arthritis59%
  • Osteoporosis44%
  • Anxiety33%
  • Depression31%

Practice locations

Addresses where Juliana J. Grey is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Juliana J. Grey as a member of this group (CMS data updated October 2, 2026).

  • Infusion Associates PLLC18 clinicians in the group

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

All internal medicine doctors in Grand Rapids →

Other clinicians in Infusion Associates PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolMichigan State University College Of Human Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750355640
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians