1. Home
  2. Directory
  3. Maryland
  4. Rockville
  5. Internal Medicine
  6. NPI Profile

OLANMA YVONNE OKOJI M.D.
NPI 1457678492
Internal Medicine - Gastroenterology in Rockville, MD

Active since April 30, 2010PECOS EnrolledAccepts Medicare Assignment
14955 SHADY GROVE RD, SUITE 150, ROCKVILLE, MD 20850(301) 340-3252(301) 340-1423 Get Directions Write a Review

NPPES record last updated: August 16, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Olanma Yvonne Okoji M.d. NPPES

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

OLANMA YVONNE OKOJI M.D. (NPI 1457678492) is an individual gastroenterology provider in Rockville, Maryland, licensed in Maryland (D81112) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS, is affiliated with Adventist Healthcare Shady Grove Medical Center, and is a graduate of George Washington University School Of Medicine (2010).

NPPES Registry Identity

NPI1457678492
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameOLANMA YVONNE OKOJICredential: M.D.
Location Address14955 SHADY GROVE RD, SUITE 150Rockville, MD 20850-8700
Mailing Address12510 Prosperity Dr, Suite 200Silver Spring, MD 20904-1663 · (240) 485-5200 · Fax (301) 625-6906
Phone(301) 340-3252
Fax(301) 340-1423
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2010
Enumeration DateApril 30, 2010
Last NPPES UpdateAugust 16, 2016
✔ NPI 1457678492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MD · D81112
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License NOT APPLICABLE
14955 SHADY GROVE RD, Rockville, MD 20850
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 and accepts Medicare assignment

Olanma Yvonne Okoji M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5991091316
PECOS Enrollment IDI20160912002091
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.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
203 services166 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
96 services94 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
80 services80 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
59 services59 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
55 services55 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
35 services35 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210057
Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20850 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
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.

DR. SHEILA GAY LEVIN MD
Internal Medicine (Gastroenterology)
14955 SHADY GROVE RD, SUITE 150
ROCKVILLE, MD 20850
Montgomery County (301) 340-3252
DR. CHIRAG PATEL MD, DDS
Dentist (Oral and Maxillofacial Surgery)
14955 SHADY GROVE RD, SUITE 330
ROCKVILLE, MD 20850
Montgomery County (301) 340-0101
JOHNS HOPKINS COMMUNITY PHYSICIANS
Internal Medicine
14955 SHADY GROVE RD
ROCKVILLE, MD 20850
Montgomery County (410) 933-0000
DR. FABIANA STEREN OFFIT DDS
Dentist
14955 SHADY GROVE RD, SUITE 360
ROCKVILLE, MD 20850
Montgomery County (301) 610-7724
STERN, GREENBAUM, KRANTZ AND SCHWARTZ
Dentist
14955 SHADY GROVE RD, SUITE 200
ROCKVILLE, MD 20850
Montgomery County (301) 610-9909
LAWRENCE ALAN BASSIN MD
Internal Medicine (Gastroenterology)
14955 SHADY GROVE RD, SUITE 150
ROCKVILLE, MD 20850
Montgomery County (301) 340-3252
MICHAEL AARON GNATT MD
Internal Medicine
14955 SHADY GROVE RD, SUITE 100
ROCKVILLE, MD 20850
Montgomery County (301) 990-3193
ALAN N SCHULMAN MD
Internal Medicine (Gastroenterology)
14955 SHADY GROVE RD, SUITE 150
ROCKVILLE, MD 20850
Montgomery County (301) 340-3252

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Olanma Okoji's NPI number?

The NPI number for Olanma Okoji is 1457678492. It was assigned to this individual provider in the NPPES registry on April 30, 2010.

Where is Olanma Okoji located?

Olanma Okoji practices at 14955 Shady Grove Rd Suite 150, Rockville, MD 20850. The listed phone number is (301) 340-3252.

What is Olanma Okoji's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Olanma Okoji enrolled in Medicare?

Yes. Olanma Okoji is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Olanma Okoji affiliated with any hospitals?

According to CMS data, Olanma Okoji is affiliated with Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Olanma Okoji was last updated on August 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.