Joseph Barbara, M.D.
NPI 1831119486 · Family Medicine Physician · Gilroy, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Barbara, M.D. is a Family Medicine Physician provider in Gilroy, CA (NPI 1831119486).
Provider details
- NPI number
- 1831119486
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G28075 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,667 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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 592 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 442 | $154 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 306 | $159 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 124 | $3 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $112 |
| Administration of Influenza Virus VaccineG0008 | 38 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 711 | 195 |
| Amlodipine Besylate | 391 | 117 |
| Metformin Hcl | 387 | 116 |
| Levothyroxine Sodium | 339 | 86 |
| Lisinopril | 292 | 90 |
| Losartan Potassium | 290 | 103 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,006 across 90 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
Registry dates
- Enumerated
- 2006-07-19
- Last updated
- 2010-08-24
Frequently asked questions
- What is Joseph Barbara's NPI number?
- Joseph Barbara's National Provider Identifier (NPI) is 1831119486, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Barbara's specialty?
- Joseph Barbara is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Barbara located?
- Joseph Barbara's practice location on file with NPPES is 7880 Wren Ave Ste C133, Gilroy, CA 95020-7801.
- What is Joseph Barbara's phone number?
- The practice phone number listed in the NPPES registry for Joseph Barbara is (408) 842-0278.
- Does Joseph Barbara accept Medicare?
- Joseph Barbara is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Barbara's NPI active?
- Yes — Joseph Barbara's NPI (1831119486) is active in the NPPES registry as of the last update on 2010-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.