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Family Practice

Allen Bueno Del Bosque

Sees patients in Castro Valley, CA · California

Summary

Allen Bueno Del Bosque is a family doctor at 20101 Lake Chabot Rd, Fl 1, Castro Valley, CA 94546. Phone: (510) 886-3400. Accepts Medicare assignment. In 2024, Allen Bueno Del Bosque had 428 Original Medicare patients and 963 services. NPI 1144648593. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 20101 Lake Chabot Rd, Fl 1, Castro Valley, CA 94546 · Directions
  • Phone: (510) 886‑3400
  • Medicare: Accepts Medicare assignment
  • Group practice: Sutter Bay Medical Foundation
  • Medical school: Oregon Health Sciences University School Of Medicine · graduated 2013 (13 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Allen Bueno Del Bosque, 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 Allen Bueno Del Bosque accept Medicare assignment?
Yes. Medicare's clinician data says Allen Bueno Del Bosque 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 Allen Bueno Del Bosque see?
In 2024, CMS data shows 428 Original Medicare patients and 963 services for Allen Bueno Del Bosque. This counts Original Medicare only and measures volume, not quality.
What is Allen Bueno Del Bosque's NPI number?
1144648593. 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 Allen Bueno Del Bosque, 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 patients428
Services billed to Medicare963
Different services or procedures48
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)164 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)136 services
  3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)72 services
  4. Automated urinalysis test (81003)62 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)45 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 cholesterol71%
  • High blood pressure60%
  • Arthritis50%
  • Osteoporosis25%
  • Anxiety24%
  • Diabetes21%

Practice locations

Addresses where Allen Bueno Del Bosque is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Allen Bueno Del Bosque as a member of this group (CMS data updated October 2, 2026).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Castro Valley

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

All family doctors in Castro Valley →

Other clinicians in Sutter Bay Medical Foundation

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

Clinician information

Medical schoolOregon Health Sciences University School Of Medicine
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144648593
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians