Joseph Barrera, M.D.
NPI 1629054630 · Endocrinology, Diabetes & Metabolism Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Barrera, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Mission Viejo, CA (NPI 1629054630).
Provider details
- NPI number
- 1629054630
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G64643 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,621 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 | 552 | $137 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 476 | $17 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 58 | $8 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 57 | $126 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 57 | $16 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 395 | 115 |
| Levothyroxine Sodiumbrand: Synthroid | 352 | 86 |
| Metformin Hcl | 204 | 70 |
| Rosuvastatin Calcium | 197 | 58 |
| Semaglutidebrand: Ozempic | 168 | 39 |
| Empagliflozinbrand: Jardiance | 168 | 44 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$674 across 37 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
- 2005-12-21
- Last updated
- 2021-10-15
- Certified
- 2021-10-15
Frequently asked questions
- What is Joseph Barrera's NPI number?
- Joseph Barrera's National Provider Identifier (NPI) is 1629054630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Barrera's specialty?
- Joseph Barrera is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Barrera located?
- Joseph Barrera's practice location on file with NPPES is 26800 Crown Valley Pkwy, Mission Viejo, CA 92691-6384.
- What is Joseph Barrera's phone number?
- The practice phone number listed in the NPPES registry for Joseph Barrera is (949) 542-8004.
- Does Joseph Barrera accept Medicare?
- Joseph Barrera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Barrera's NPI active?
- Yes — Joseph Barrera's NPI (1629054630) is active in the NPPES registry as of the last update on 2021-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.