Romeo Ang Mandanas, M.D.
Medical Oncology (CMS) · Oklahoma City, OK
At a glance
5915 W. Memorial Road, Oklahoma City, OK 73142
NPPES record updated Jun 27, 2017. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
5915 W. Memorial Road Suite 200Oklahoma City, OK 73142
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 1983
- CMS specialties
- Medical Oncology
Practice groups
Reported hospital affiliations
- Integris Baptist Medical Center, Inc Oklahoma City, OK
- Integris Canadian Valley Hospital Yukon, OK
- Integris Health Edmond Hospital Edmond, OK
- Integris Southwest Medical Center Oklahoma City, OK
- O U Medical Center Oklahoma City, OK
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Travel and lodging | $2,565.77 |
| Food and beverage | $1,122.26 |
| Consulting fee | $150.00 |
| Education | $141.31 |
| Long-term medical supply or device loan | $83.33 |
Reporting companies
| Company | Amount |
|---|---|
| KARYOPHARM THERAPEUTICS INC. | $2,600.77 |
| PFIZER INC. | $413.40 |
| GALVANIZE THERAPEUTICS, INC | $176.58 |
| ASTRAZENECA PHARMACEUTICALS LP | $164.34 |
| E.R. SQUIBB & SONS, L.L.C. | $151.04 |
| JANSSEN SCIENTIFIC AFFAIRS, LLC | $150.00 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $83.33 |
| BAYER HEALTHCARE PHARMACEUTICALS INC. | $56.46 |
| Other reporting companies | $266.75 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Medical Oncology (CMS)
- Taxonomy code
- 207RH0003X
- Enumeration date
- May 30, 2006
- Record updated
- Jun 27, 2017
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207R00000X
License reported: 18541 OK
207RH0000X
License reported: 18541 OK
207RX0202X
License reported: 18541 OK
207RH0003X · Primary
License reported: 18541 OK
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
5915 W. Memorial RoadSuite 200
Oklahoma City, OK 73142
- Phone
- (405) 773-6400
- Fax
- (405) 621-5441
Mailing address
5300 N INDEPENDENCE AVESUITE 280
OKLAHOMA CITY, OK 731125556
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue