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Gastroenterology

Olanma Y. Okoji, MD

Works at hospitals in Rockville, MD · Maryland

Summary

Dr. Olanma Y. Okoji, MD is a gastroenterologist at 14955 Shady Grove Rd, Suite 150, Rockville, MD 20850. Phone: (301) 340-3252. Accepts Medicare assignment. In 2024, Olanma Y. Okoji had 363 Original Medicare patients and 2,046 services. NPI 1457678492. 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.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 14955 Shady Grove Rd, Suite 150, Rockville, MD 20850 · Directions
  • Phone: (301) 340‑3252
  • Medicare: Accepts Medicare assignment
  • Hospital: Adventist Healthcare Shady Grove Medical Center
  • Group practice: Capital Digestive Care LLC
  • Medical school: George Washington University School Of Medicine · graduated 2010 (16 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Olanma Y. Okoji, 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 Olanma Y. Okoji accept Medicare assignment?
Yes. Medicare's clinician data says Olanma Y. Okoji 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 Olanma Y. Okoji see?
In 2024, CMS data shows 363 Original Medicare patients and 2,046 services for Olanma Y. Okoji. This counts Original Medicare only and measures volume, not quality.
What is Olanma Y. Okoji's NPI number?
1457678492. 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 Olanma Y. Okoji, 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 patients363
Services billed to Medicare2,046
Different services or procedures34
Participating Medicare providerYes
Average age of these patients74

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)203 services
  2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)96 services
  3. Biopsy of large bowel using a flexible endoscope (45380)80 services
  4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)59 services
  5. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)55 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 pressure66%
  • Arthritis50%
  • Osteoporosis28%
  • Anxiety25%
  • Ischemic heart disease23%

Hospitals where Olanma Y. Okoji works

Medicare's Facility Affiliation Data lists Olanma Y. Okoji 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.

Practice locations

Addresses where Olanma Y. Okoji is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Olanma Y. Okoji as a member of this group (CMS data updated October 2, 2026).

  • Capital Digestive Care LLC241 clinicians in the group

Specialties

Find other Gastroenterology doctors in Maryland →

Other gastroenterologists in Rockville

Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.

All gastroenterologists in Rockville →

Other clinicians in Capital Digestive Care LLC

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

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1457678492
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