Paul Hazelbaker, DO
NPI 1831106103 · Internal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Hazelbaker, DO is a Internal Medicine Physician provider in San Diego, CA (NPI 1831106103).
Provider details
- NPI number
- 1831106103
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A7147 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 451 | 146 |
| Gabapentin | 327 | 77 |
| Lisinopril | 250 | 86 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 244 | 73 |
| Omeprazole | 214 | 61 |
| Amlodipine Besylate | 195 | 68 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
- 2006-08-01
- Last updated
- 2017-10-19
Frequently asked questions
- What is Paul Hazelbaker's NPI number?
- Paul Hazelbaker's National Provider Identifier (NPI) is 1831106103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Hazelbaker's specialty?
- Paul Hazelbaker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Hazelbaker located?
- Paul Hazelbaker's practice location on file with NPPES is 1250 6th Ave, San Diego, CA 92101-4300.
- What is Paul Hazelbaker's phone number?
- The practice phone number listed in the NPPES registry for Paul Hazelbaker is (619) 515-2430.
- Does Paul Hazelbaker accept Medicare?
- Paul Hazelbaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Hazelbaker's NPI active?
- Yes — Paul Hazelbaker's NPI (1831106103) is active in the NPPES registry as of the last update on 2017-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.