Rachel L. Fishman Oiknine, MD

Medicare activity in 2024

Official CMS public-use data for Rachel L. Fishman Oiknine, 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.

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)364 services
2. Thyroid hormone, t3 measurement, total (84480)218 services
3. Thyroxine (thyroid chemical), free (84439)217 services
4. Blood test, thyroid stimulating hormone (tsh) (84443)217 services
5. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)128 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 cholesterol75%
• High blood pressure65%
• Arthritis47%
• Anxiety34%
• Osteoporosis34%
• Depression22%

Hospitals where Rachel L. Fishman Oiknine works

Medicare's Facility Affiliation Data lists Rachel L. Fishman Oiknine 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.

• St Lukes HospitalChesterfield, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260179

Practice locations

Addresses where Rachel L. Fishman Oiknine is enrolled with Medicare (CMS data updated October 2, 2026).

• 222 S Woods Mill Rd, Suite 410nChesterfield, MO 63017

Group practices

Medicare enrollment lists Rachel L. Fishman Oiknine as a member of this group (CMS data updated October 2, 2026).

• Diabetes and Endocrinology Specialists Inc4 clinicians in the group

Specialties

• Endocrinologyprimary

Find other Endocrinology doctors in Missouri →

Other endocrinologists in Chesterfield

Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.

• Norman Fishman, MD
• Ralph Oiknine, MD
• Katharine Mikulec, MD
• Tariq S. Tanoli, MD
• Karen J. Chang-Chen, MD
• Soumya Nadella, MD
• Purvi Parikh, MD

All endocrinologists in Chesterfield →

Other clinicians in Diabetes and Endocrinology Specialists Inc

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

• Norman Fishman, MD
• Ralph Oiknine, MD
• Maria T. Weir, NP

Clinician information

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