Carina Buhay, MD
NPI 1639143530 · Internal Medicine Physician · San Bernardino, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carina Buhay, MD is a Internal Medicine Physician provider in San Bernardino, CA (NPI 1639143530).
Provider details
- NPI number
- 1639143530
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A490630 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
322 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $131 |
| Administration and Interpretation of Patient-Focused Health Risk Assessment96160 | 66 | $3 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 33 | $3 |
| Administration of Influenza Virus VaccineG0008 | 29 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $93 |
Typical Medicare-allowed amounts for these services range $3–$131 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 200 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,254 | 310 |
| Amlodipine Besylate | 761 | 197 |
| Lisinopril | 662 | 144 |
| Gabapentin | 501 | 109 |
| Omeprazole | 471 | 110 |
| Metformin Hcl | 440 | 119 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$858 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2150 N Waterman AveSte 200San Bernardino, CA 92404-4811Phone: (909) 881-4115
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2025-12-06
- Certified
- 2025-12-06
Frequently asked questions
- What is Carina Buhay's NPI number?
- Carina Buhay's National Provider Identifier (NPI) is 1639143530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carina Buhay's specialty?
- Carina Buhay is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carina Buhay located?
- Carina Buhay's practice location on file with NPPES is 1700 N Waterman Ave, San Bernardino, CA 92404-5115.
- What is Carina Buhay's phone number?
- The practice phone number listed in the NPPES registry for Carina Buhay is (909) 883-8611.
- Does Carina Buhay accept Medicare?
- Carina Buhay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carina Buhay's NPI active?
- Yes — Carina Buhay's NPI (1639143530) is active in the NPPES registry as of the last update on 2025-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.