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Colorectal Surgery (Proctology)

Olakunle O. Ajayi, MD

Works at hospitals in Oakland, CA · California

Summary

Dr. Olakunle O. Ajayi, MD is a colorectal surgeon at 275 W Macarthur Blvd, Oakland, CA 94611. Phone: (510) 752-1000. Accepts Medicare assignment. NPI 1760409049. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Colorectal surgeon (Medicare lists Colorectal Surgery (Proctology))
  • Address: 275 W Macarthur Blvd, Oakland, CA 94611 · Directions (1 more location)
  • Phone: (510) 752‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - Oakland/Richmond
  • Group practice: Permanente Medical Group Inc
  • Medical school: graduated 1998 (28 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Olakunle O. Ajayi, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Olakunle O. Ajayi accept Medicare assignment?
Yes. Medicare's clinician data says Olakunle O. Ajayi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Olakunle O. Ajayi's NPI number?
1760409049. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Olakunle O. Ajayi works

Medicare's Facility Affiliation Data lists Olakunle O. Ajayi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Olakunle O. Ajayi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Olakunle O. Ajayi as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Colorectal Surgery (Proctology) doctors in California →

Other colorectal surgeons in Oakland

Clinicians with the same Medicare primary specialty in Oakland, CA — not a recommendation.

All colorectal surgeons in Oakland →

Other clinicians in Permanente Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1760409049
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians