Dr. Richard O. Oyelewu, MD
- Medicare services, 2024
- 1,199
- Medicare patients, 2024
- 480
- Part D claims, 2024
- 347
- Hospital affiliations
- 2
- Industry payments
- $360
- Practice address
- 701 East Marshall Street, West Chester, PA 19380
- Practice phone
- Call (610) 431-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Oyelewu'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. Richard O. Oyelewu is an internist in West Chester, Pennsylvania
Dr. Oyelewu practices at Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania.
Dr. Oyelewu's NPI, 1659345601, was assigned on February 15, 2006. Dr. Oyelewu holds Pennsylvania license MD418850.
- NPI
- 1659345601NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567658784
- NPI enumeration date
- February 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (610) 431-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard O. Oyelewu practices at Chester County Hospital in West Chester, Pennsylvania
Dr. Oyelewu's primary practice is Chester County Hospital, at 701 East Marshall Street, West Chester, PA 19380 in Chester County. The practice phone is (610) 431-5000.
- Chester County Hospital701 East Marshall Street, West Chester, PA 19380 · Chester CountyPhone(610) 431-5000
Source: Dmand AI Affiliation Data
Dr. Richard O. Oyelewu is affiliated with 3 sites of care and 3 medical groups
Dr. Oyelewu's primary practice is Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania. Dr. Oyelewu is also affiliated with Hospital of the University of Pennsylvania. The medical group on file is Penn Medicine Lancaster General Health. Dmand AI also links Dr. Oyelewu to 2 more medical groups and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Richard O. Oyelewu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oyelewu practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chester County Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard O. Oyelewu is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Oyelewu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Oyelewu is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Oyelewu
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. Richard O. Oyelewu billed Medicare for 1,199 services in 2024
CMS data shows 1,199 Medicare services from Dr. Oyelewu across 6 procedure codes in 2024, for 480 Medicare patients. Medicare paid $83,012 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Oyelewu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3222024: 1,1999%
Dr. Oyelewu compared with the Pennsylvania median for internists, 2024
- Dr. Oyelewu
- Pennsylvania median
- Medicare services
- 1,199vs 4172.9 times
- Medicare patients
- 480vs 1852.6 times
- Part D claims
- 68vs 22470% below
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Oyelewu's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Oyelewu?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oyelewu and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard O. Oyelewu treated 480 Medicare patients in 2024, average age 78
CMS counts 480 Medicare patients who saw Dr. Oyelewu in 2024. The largest group is 75 to 84, with 192 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.42, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Oyelewu's median patient age at 70, with 49% women.
Dr. Oyelewu's Medicare patients by age, 2024
Dr. Oyelewu's Medicare patients by sex, 2024
- Women26355%
- Men21745%
Chronic conditions among Dr. Oyelewu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease60%
- Arthritis56%
- Chronic kidney disease53%
- Mood disorders50%
- Anxiety44%
- Depression44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oyelewu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard O. Oyelewu wrote 347 Medicare Part D claims in 2024
In 2024, Dr. Oyelewu wrote 347 Medicare Part D claims for 149 patients. 87% of them were for generic drugs. CMS names the drug for 68 of them, across 5 drugs with 11 or more claims each, at $8,515 in total drug cost. In 2023, CMS named 79 claims across 4 drugs.
Dr. Oyelewu's Part D claims by kind of drug, 2024
- Generic303 claims87%
- Brand-name44 claims13%
Dr. Oyelewu's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Oyelewu's Part D claims, 2024
- Opioids3%12 of 347 claims
- Antibiotics16%55 of 347 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 792024: 6814%
Drugs named by CMS: 5 in 2024, 4 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Richard O. Oyelewu takes part in Medicare
Dr. Oyelewu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Richard O. Oyelewu received $360 in industry payments from 2019 to 2024
CMS Open Payments shows 5 general payments to Dr. Oyelewu from 4 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $195.
General payments to Dr. Oyelewu by program year, 2019 to 2024
Companies that paid Dr. Oyelewu the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Richard O. Oyelewu'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Richard O. Oyelewu
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. Richard O. Oyelewu's NPI number?
Dr. Richard O. Oyelewu's NPI number is 1659345601. It was assigned on February 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard O. Oyelewu?
Dr. Richard O. Oyelewu is an internist in West Chester, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Richard O. Oyelewu practice?
Dr. Oyelewu practices at 701 East Marshall Street, West Chester, PA 19380. Dr. Oyelewu's primary practice is Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania. Dmand AI also links Dr. Oyelewu to 2 medical groups and 1 home health agency.
What is Dr. Richard O. Oyelewu's office phone number?
The practice phone on file for Dr. Oyelewu is (610) 431-5000.
What is Dr. Richard O. Oyelewu's medical license number?
Dr. Oyelewu holds Pennsylvania license MD418850.
Which hospitals is Dr. Richard O. Oyelewu affiliated with?
Dr. Oyelewu practices at Chester County Hospital in West Chester, Pennsylvania. Dr. Oyelewu is also affiliated with Hospital of the University of Pennsylvania.
What medical group is Dr. Richard O. Oyelewu part of?
Dr. Oyelewu is linked to Penn Medicine Lancaster General Health. Dmand AI links Dr. Oyelewu to 2 more medical groups.
Does Dr. Richard O. Oyelewu accept Medicare?
Yes. CMS data shows Dr. Oyelewu billed Medicare for 1,199 services in 2024, and Dr. Oyelewu accepts Medicare assignment.
How many Medicare patients does Dr. Richard O. Oyelewu see?
CMS counts 480 Medicare patients who saw Dr. Oyelewu in 2024, with an average age of 78.
What services does Dr. Richard O. Oyelewu bill to Medicare?
In 2024, Dr. Oyelewu's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99239).
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What drugs does Dr. Richard O. Oyelewu prescribe most?
In 2024 Medicare Part D data, Dr. Oyelewu's most prescribed drugs by claims were Prednisone, Metoprolol Succinate and Amoxicillin-Clavulanate Potass.
Has Dr. Richard O. Oyelewu received payments from drug or device companies?
CMS Open Payments shows $360 in general payments to Dr. Oyelewu from 4 companies from 2019 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Richard O. Oyelewu been practicing?
Dr. Oyelewu graduated from medical school in 1987, 39 years ago.
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