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Internal Medicine

Carina D. Buhay, MD

Sees patients in San Bernardino, CA · Beaumont, CA · California

Summary

Dr. Carina D. Buhay, MD is an internal medicine doctor at 2150 N Waterman Ave, Suite 200, San Bernardino, CA 92404. Phone: (909) 881-4115. Accepts Medicare assignment. In 2024, Carina D. Buhay had 92 Original Medicare patients and 491 services. NPI 1639143530. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 2150 N Waterman Ave, Suite 200, San Bernardino, CA 92404 · Directions (1 more location)
  • Phone: (909) 881‑4115
  • Medicare: Accepts Medicare assignment
  • Group practice: Beaver Medical Group P C (+1 more)
  • Medical school: graduated 1983 (43 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Carina D. Buhay, 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 Carina D. Buhay accept Medicare assignment?
Yes. Medicare's clinician data says Carina D. Buhay 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 Carina D. Buhay see?
In 2024, CMS data shows 92 Original Medicare patients and 491 services for Carina D. Buhay. This counts Original Medicare only and measures volume, not quality.
What is Carina D. Buhay's NPI number?
1639143530. 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 Carina D. Buhay, 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 patients92
Services billed to Medicare491
Different services or procedures26
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)173 services
  2. Administration and interpretation of patient-focused health risk assessment (96160)66 services
  3. Blood glucose (sugar) test performed by hand-held instrument (82962)33 services
  4. Administration of influenza virus vaccine (G0008)29 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)21 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%
  • High cholesterol75%
  • Diabetes47%
  • Chronic kidney disease29%
  • Arthritis26%
  • Depression18%

Practice locations

Addresses where Carina D. Buhay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Carina D. Buhay as a member of these groups (CMS data updated October 2, 2026).

  • Beaver Medical Group P C247 clinicians in the group
  • Pinnacle Medical Group Inc19 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Bernardino

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

All internal medicine doctors in San Bernardino →

Other clinicians in Beaver Medical Group P C

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

Clinician information

CredentialMD
Graduation year1983 (43 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639143530
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