Barbara Davis, D.O.
NPI 1942425079 · Internal Medicine Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Davis, D.O. is a Internal Medicine Physician provider in Irvine, CA (NPI 1942425079).
Provider details
- NPI number
- 1942425079
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A9925 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 76 | 14 |
| Levothyroxine Sodium | 72 | 13 |
| Tamsulosin Hcl | 54 | 15 |
| Oxybutynin Chloride | 40 | — |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 24 | — |
| Furosemide | 24 | — |
| Midodrine Hcl | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 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
- 2007-04-16
- Last updated
- 2016-11-22
Frequently asked questions
- What is Barbara Davis's NPI number?
- Barbara Davis's National Provider Identifier (NPI) is 1942425079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Davis's specialty?
- Barbara Davis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Davis located?
- Barbara Davis's practice location on file with NPPES is 11 Technology Dr, Irvine, CA 92618-2302.
- What is Barbara Davis's phone number?
- The practice phone number listed in the NPPES registry for Barbara Davis is (855) 206-6764.
- Does Barbara Davis accept Medicare?
- Barbara Davis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Davis's NPI active?
- Yes — Barbara Davis's NPI (1942425079) is active in the NPPES registry as of the last update on 2016-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.