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JAMES OYENIYI
NPI 1144670936
Surgery - Vascular Surgery in Pasadena, TX

Active since June 13, 2016PECOS EnrolledAccepts Medicare Assignment
3801 VISTA RD STE 300, PASADENA, TX 77504(713) 770-6169(713) 429-0717 Get Directions Write a Review

NPPES record last updated: February 23, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 5, 2024, Nov 7, 2024, Jun 13, 2016 (3 updates tracked since 2016).

About James Oyeniyi NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JAMES OYENIYI (NPI 1144670936) is an individual vascular surgery provider in Pasadena, Texas, licensed in Texas (48537) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Southeast, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1144670936
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameJAMES OYENIYI
Location Address3801 VISTA RD STE 300Pasadena, TX 77504-2139
Mailing Address3801 Vista Rd Ste 300Pasadena, TX 77504-2139 · (713) 770-6169 · Fax (713) 429-0717
Phone(713) 770-6169
Fax(713) 429-0717
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 13, 2016
Last NPPES UpdateFebruary 23, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 23, 2026
✔ NPI 1144670936 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in TX · 48537
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedSurgeryTaxonomy 208600000X · License 125.069030 (IL)
3801 VISTA RD STE 300, Pasadena, TX 77504
Open in Google Maps ↗

Secondary Practice Location 1

Location 11200 Binz St Ste 1300Houston, TX 77004-6999 · Phone (713) 942-2500 · Fax (713) 942-2500

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

James Oyeniyi is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618269267
PECOS Enrollment IDI20241119000988
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show James Oyeniyi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Houston Methodist Specialty Physicians
14 mi
Otolaryngology
7550 GREENBRIAR DR STE 600
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 1,579 clinicians in this Medicare group
NPI 1902614332 (281) 414-6055

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hca Houston Healthcare Southeast

Acute Care Hospitals · Pasadena, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450097
Location4000 Spencer HwyPasadena, TX 77504 · Harris County
Emergency services Birthing friendly

Houston Methodist Willowbrook Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450844
Location18220 State Highway 249Houston, TX 77070 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77504 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$72.62 typical visit price
range $18.60 – $143.93
Typical copayment $18.15 (range $4.65 – $35.98)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SHARIQ ADEEL ZAIDI M.D.
Surgery (Vascular Surgery)
3801 VISTA RD STE 300
PASADENA, TX 77504
Harris County (713) 942-2500

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 James Oyeniyi's NPI number?

The NPI number for James Oyeniyi is 1144670936. It was assigned to this individual provider in the NPPES registry on June 13, 2016.

Where is James Oyeniyi located?

James Oyeniyi practices at 3801 Vista Rd Ste 300, Pasadena, TX 77504. The listed phone number is (713) 770-6169.

What is James Oyeniyi's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is James Oyeniyi enrolled in Medicare?

Yes. James Oyeniyi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for James Oyeniyi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Oyeniyi reassigns Medicare benefits to Houston Methodist Specialty Physicians (Houston, TX). The 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 James Oyeniyi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is James Oyeniyi affiliated with any hospitals?

According to CMS data, James Oyeniyi is affiliated with Hca Houston Healthcare Southeast and Houston Methodist Willowbrook Hospital.

When was this NPI record last updated?

The NPPES record for James Oyeniyi was last updated on February 23, 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.