Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Meredith K. Martin-Johnston, DO

Works at hospitals in Fort Atkinson, WI · Arlington Heights, IL · Hoffman Estates, IL · Wisconsin, Illinois

Summary

Dr. Meredith K. Martin-Johnston, DO is an OB-GYN at 1614 W Central Rd, Suite 211, Arlington Hts, IL 60005. Phone: (847) 483-0350. Accepts Medicare assignment. In 2024, Meredith K. Martin-Johnston had 122 Original Medicare patients and 522 services. NPI 1275783300. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Meredith K. Martin-Johnston, 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 Meredith K. Martin-Johnston accept Medicare assignment?
Yes. Medicare's clinician data says Meredith K. Martin-Johnston 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 Meredith K. Martin-Johnston see?
In 2024, CMS data shows 122 Original Medicare patients and 522 services for Meredith K. Martin-Johnston. This counts Original Medicare only and measures volume, not quality.
What is Meredith K. Martin-Johnston's NPI number?
1275783300. 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 Meredith K. Martin-Johnston, 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 patients122
Services billed to Medicare522
Different services or procedures23
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)124 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)13 services
  3. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)12 services
  4. Complete ultrasound scan of pelvis (76856)11 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 cholesterol72%
  • High blood pressure59%
  • Arthritis43%
  • Anxiety28%
  • Osteoporosis21%
  • Diabetes20%

Hospitals where Meredith K. Martin-Johnston works

Medicare's Facility Affiliation Data lists Meredith K. Martin-Johnston at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Fort Memorial HospitalFort Atkinson, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520071
  • Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
  • St Alexius Medical CenterHoffman Estates, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140290

Practice locations

Addresses where Meredith K. Martin-Johnston is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Meredith K. Martin-Johnston as a member of these groups (CMS data updated October 2, 2026).

  • Fort Healthcare Inc155 clinicians in the group
  • Northwest Women's Consultants, S.C.5 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Arlington Hts

Clinicians with the same Medicare primary specialty in Arlington Hts, IL — not a recommendation.

All OB-GYNs in Arlington Hts →

Other clinicians in Fort Healthcare Inc

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

Clinician information

CredentialDO
Medical schoolNova Southeastern College Of Osteo Medicine
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275783300
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians