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Nephrology

Benjamin D. Cowley Jr., MD

Works at hospitals in Oklahoma City, OK · Oklahoma

Summary

Dr. Benjamin D. Cowley Jr., MD is a nephrologist at 1000 NE 13th St, Oklahoma City, OK 73104. Phone: (405) 271-3445. Accepts Medicare assignment. In 2024, Benjamin D. Cowley Jr. had 134 Original Medicare patients and 761 services. NPI 1427027457. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Nephrologist (Medicare lists Nephrology)
  • Address: 1000 NE 13th St, Oklahoma City, OK 73104 · Directions (1 more location)
  • Phone: (405) 271‑3445
  • Medicare: Accepts Medicare assignment
  • Hospital: O U Medical Center
  • Group practice: OU Health Partners Inc
  • Medical school: Baylor College Of Medicine · graduated 1981 (45 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Benjamin D. Cowley Jr., 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 Benjamin D. Cowley Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Benjamin D. Cowley Jr. 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.
How many Medicare patients does Benjamin D. Cowley Jr. see?
In 2024, CMS data shows 134 Original Medicare patients and 761 services for Benjamin D. Cowley Jr.. This counts Original Medicare only and measures volume, not quality.
What is Benjamin D. Cowley Jr.'s NPI number?
1427027457. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Benjamin D. Cowley Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients134
Services billed to Medicare761
Different services or procedures22
Participating Medicare providerYes
Average age of these patients63

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)116 services
  2. Hemodialysis procedure with physician evaluation (90935)106 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)91 services
  4. Critical care, first 30-74 minutes (99291)62 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)29 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • Chronic kidney disease75%
  • High cholesterol74%
  • Diabetes63%
  • Heart failure57%
  • Ischemic heart disease52%

Hospitals where Benjamin D. Cowley Jr. works

Medicare's Facility Affiliation Data lists Benjamin D. Cowley Jr. 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 Benjamin D. Cowley Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Benjamin D. Cowley Jr. as a member of this group (CMS data updated October 2, 2026).

  • OU Health Partners Inc1,184 clinicians in the group

Specialties

Find other Nephrology doctors in Oklahoma →

Other nephrologists in Oklahoma City

Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.

All nephrologists in Oklahoma City →

Other clinicians in OU Health Partners Inc

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

Clinician information

CredentialMD
Medical schoolBaylor College Of Medicine
Graduation year1981 (45 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427027457
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians