Dr. Greg M. Oji, MD
- Industry payments
- $424
- Insurance carriers
- 14
- State licenses
- 5
- Year NPI issued
- 2012
- Practice address
- 931 Buena Vista St, Duarte, CA 91010
- Practice phone
- Call (201) 234-9238
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greg Martins Oji, MD. Inc.
Duarte, California
Find Dr. Oji's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Greg M. Oji is a pediatrician in Duarte, California
Dr. Oji practices at Greg Martins Oji, MD. Inc. in Duarte, California.
Dr. Oji's NPI, 1487913976, was assigned on May 3, 2012. Dr. Oji graduated from University of Nigeria Faculty of Medicine in 1988. Dr. Oji's Louisiana license number on file is MD.207384.
- NPI
- 1487913976NPI Registry (opens in a new tab)
- NPI enumeration date
- May 3, 2012
- NPI status
- Active
- Practice phone
- (201) 234-9238
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Greg M. Oji practices at Greg Martins Oji, MD. Inc. in Duarte, California
Dr. Oji's primary practice is Greg Martins Oji, MD. Inc., at 931 Buena Vista St, Duarte, CA 91010 in Los Angeles County. The practice phone is (201) 234-9238.
- Greg Martins Oji, MD. Inc.931 Buena Vista St, Duarte, CA 91010 · Los Angeles CountyPhone(201) 234-9238
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Greg M. Oji is affiliated with 1 site of care
Dr. Oji's primary practice is Greg Martins Oji, MD. Inc. in Duarte, California.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Greg M. Oji's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oji practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greg Martins Oji, MD. Inc. | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Greg M. Oji is one of 8,236 pediatricians in California
Pediatrics is Dr. Oji's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dmand AI has Dr. Oji's licenses on file in 5 states: Louisiana, California, Maryland, New Jersey and Kentucky.
Specialties and state licenses
- Pediatrics, LouisianaPrimary
- California license
- Maryland license
- New Jersey license
- Kentucky license
Pediatricians near Dr. Oji
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Greg M. Oji's patients have a median age of 12
Across all payers, Dmand AI patient panel data puts Dr. Oji's median patient age at 12, with 50% women.
Dr. Oji's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 12
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Greg M. Oji received $424 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Oji from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Sanofi Pasteur Inc. paid the most, $153.
General payments to Dr. Oji by program year, 2016 to 2025
Companies that paid Dr. Oji the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Greg M. Oji graduated from University of Nigeria Faculty of Medicine
Dr. Oji graduated from University of Nigeria Faculty of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Greg M. Oji accepts plans from 14 insurance carriers
Dr. Oji is in network with 14 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- HCSC
- Blue Cross Blue Shield of Massachusetts
- LA Care
- Molina
- +6 more carriersWith a free account
Plan types Dr. Oji accepts, by number of carriers
- HMO8
- PPO8
- Medicare6
- EPO4
- POS4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Greg M. Oji's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Greg M. Oji
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Greg M. Oji's NPI number?
Dr. Greg M. Oji's NPI number is 1487913976. It was assigned on May 3, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Greg M. Oji?
Dr. Greg M. Oji is a pediatrician in Duarte, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Greg M. Oji practice?
Dr. Oji practices at 931 Buena Vista St, Duarte, CA 91010. Dr. Oji's primary practice is Greg Martins Oji, MD. Inc. in Duarte, California.
What is Dr. Greg M. Oji's office phone number?
The practice phone on file for Dr. Oji is (201) 234-9238.
What is Dr. Greg M. Oji's medical license number?
Dr. Oji's Louisiana license number on file is MD.207384, one of the licenses on file in 5 states.
Which states has Dr. Greg M. Oji been licensed in?
Dmand AI has state licenses on file for Dr. Oji in Louisiana (2014 to 2022), California (2020 to 2026), Maryland (2020 to 2023), New Jersey (2012 to 2016) and Kentucky (2013 to 2015).
Where did Dr. Greg M. Oji go to medical school?
Dr. Oji graduated from University of Nigeria Faculty of Medicine in 1988.
Has Dr. Greg M. Oji received payments from drug or device companies?
CMS Open Payments shows $424 in general payments to Dr. Oji from 6 companies from 2016 to 2025. The largest total came from Sanofi Pasteur Inc.
How long has Dr. Greg M. Oji been practicing?
Dr. Oji graduated from medical school in 1988, 38 years ago.
What insurance does Dr. Greg M. Oji accept?
Dr. Oji is in network with 14 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
Selling to pediatrics practices?
See pediatricians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card