Dr. Oluremi Nnenna Ajala, MD
- Medicare services, 2021
- 84
- Part D claims, 2023
- 43
- Industry payments
- $2,594
- State license
- 1
- Year NPI issued
- 2013
- Practice address
- 1740 W Taylor St, Chicago, IL 60612
- Practice phone
- Call (412) 664-2848
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ajala's professional email, personal email and mobile number
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Dr. Oluremi Nnenna Ajala is an internist in Chicago, Illinois
Dr. Ajala practices in Chicago, Illinois.
Dr. Ajala's NPI, 1629412325, was assigned on April 24, 2013. Dr. Ajala holds Pennsylvania license MD459113.
- NPI
- 1629412325NPI Registry (opens in a new tab)
- NPI enumeration date
- April 24, 2013
- NPI status
- Active
- Practice phone
- (412) 664-2848
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Oluremi Nnenna Ajala's practice address is in Chicago, Illinois
Dr. Ajala's practice address in the NPI Registry is 1740 W Taylor St, Chicago, IL 60612, in Cook County. The practice phone is (412) 664-2848.
- NPI Registry address1740 W Taylor St, Chicago, IL 60612 · Cook CountyPhone(412) 664-2848
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Oluremi Nnenna Ajala's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ajala practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Ajala's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Oluremi Nnenna Ajala is one of 5,652 internists in Illinois
Internal medicine is Dr. Ajala's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ajala is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Ajala
Counts of internists 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. Oluremi Nnenna Ajala billed Medicare for 84 services in 2021
CMS data shows 84 Medicare services from Dr. Ajala across 3 procedure codes in 2021. Medicare paid $12,399 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ajala's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 162021: 84425%
Dr. Ajala compared with the Illinois median for internists, 2021
- Dr. Ajala
- Illinois median
- Medicare services
- 84vs 56685% below
- Part D claims
- 43vs 28485% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Ajala's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ajala and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Oluremi Nnenna Ajala's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Ajala's median patient age at 67, with 100% women.
Dr. Ajala's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Oluremi Nnenna Ajala wrote 43 Medicare Part D claims in 2023
In 2023, Dr. Ajala wrote 43 Medicare Part D claims. They cover 3 drugs, with $9,866 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Ajala's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 122023: 43258%
Drugs named by CMS: 3 in 2023, 1 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Oluremi Nnenna Ajala received $2,594 in industry payments from 2021 to 2024
CMS Open Payments shows 40 general payments to Dr. Ajala from 7 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 49% of the total. Medtronic, Inc. paid the most, $2,029.
General payments to Dr. Ajala by program year, 2021 to 2024
General payments to Dr. Ajala by kind, 2021 to 2024
- Food and beverage$1,26349%
- Travel and lodging$1,19846%
- Education$1335%
Companies that paid Dr. Ajala the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Oluremi Nnenna Ajala'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 |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Oluremi Nnenna Ajala
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. Oluremi Nnenna Ajala's NPI number?
Dr. Oluremi Nnenna Ajala's NPI number is 1629412325. It was assigned on April 24, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Oluremi Nnenna Ajala?
Dr. Oluremi Nnenna Ajala is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Oluremi Nnenna Ajala practice?
Dr. Ajala practices at 1740 W Taylor St, Chicago, IL 60612.
What is Dr. Oluremi Nnenna Ajala's office phone number?
The practice phone on file for Dr. Ajala is (412) 664-2848.
What is Dr. Oluremi Nnenna Ajala's medical license number?
Dr. Ajala holds Pennsylvania license MD459113.
Does Dr. Oluremi Nnenna Ajala accept Medicare?
Yes. CMS data shows Dr. Ajala billed Medicare for 84 services in 2021.
What services does Dr. Oluremi Nnenna Ajala bill to Medicare?
In 2021, Dr. Ajala's most billed Medicare services were hospital inpatient care (99223), medical service (99220) and hospital inpatient care (99233).
What drugs does Dr. Oluremi Nnenna Ajala prescribe most?
In 2023 Medicare Part D data, Dr. Ajala's most prescribed drugs by claims were Atorvastatin Calcium, Omeprazole and Jardiance.
Has Dr. Oluremi Nnenna Ajala received payments from drug or device companies?
CMS Open Payments shows $2,594 in general payments to Dr. Ajala from 7 companies from 2021 to 2024. The largest total came from Medtronic, Inc.
How long has Dr. Oluremi Nnenna Ajala been practicing?
Dr. Ajala's NPI was assigned in 2013.
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