MJ MEDICAL GROUP,INC.
NPI 1699194423
Internal Medicine - Gastroenterology in Corona, CA
About Mj Medical Group,inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MJ MEDICAL GROUP,INC. (NPI 1699194423), doing business as Oceana Gastroenterology Associates, is a healthcare organization registered as a gastroenterology in Corona, California and active in the NPI registry since April 2014. The organization maintains a secondary practice location in Lake Forest and lists Roula Jamal, Admin, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 2
Secondary Practice Location 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mj Medical Group,inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
10Medicare enrollment records show 10 clinicians reassign Medicare billing to Mj Medical Group,inc., which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (10)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mj Medical Group,inc.'s NPI number?
The NPI number for Mj Medical Group,inc. is 1699194423. It was assigned to this organization in the NPPES registry on April 9, 2014. The provider is doing business as Oceana Gastroenterology Associates and Oceana Gastroenterology OC.
Where is Mj Medical Group,inc. located?
Mj Medical Group,inc. is located at 2097 Compton Ave Ste 103, Corona, CA 92881. The listed phone number is (951) 934-0505.
What is Mj Medical Group,inc.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Mj Medical Group,inc. enrolled in Medicare?
Yes. Mj Medical Group,inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mj Medical Group,inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to Mj Medical Group,inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (6) and Gastroenterology (4). Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mj Medical Group,inc. was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Mj Medical Group,inc. · NPI 1699194423
Gastroenterology organization in Corona, California. Organization record, active in the CMS NPPES registry since April 9, 2014.
## Identity
- **NPI:** 1699194423 (Entity type: Organization)
- **Enumerated:** April 9, 2014
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Also known as:** OCEANA GASTROENTEROLOGY ASSOCIATES (Doing Business As); Oceana Gastroenterology OC (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Roula Jamal, ADMIN
## Practice location
- **Address:** 2097 COMPTON AVE STE 103, Corona, CA 92881-7289
- **Phone:** (951) 934-0505 · **Fax:** (951) 934-0506
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 10 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (6), Gastroenterology (4); 3 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 17, 2026
- **Other identifiers:** Other 1003916727 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1699194423) · Data from the CMS NPPES public registry.