Earl Isbell, MD
NPI 1447204839 · Emergency Medicine Physician · Glendora, CA
Earl Isbell, MD is a Emergency Medicine Physician provider in Glendora, CA (NPI 1447204839).
Provider details
- NPI number
- 1447204839
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- G34651 (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
20 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
- 2006-05-20
- Last updated
- 2017-03-19
Frequently asked questions
- What is Earl Isbell's NPI number?
- Earl Isbell's National Provider Identifier (NPI) is 1447204839, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Earl Isbell's specialty?
- Earl Isbell is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Earl Isbell located?
- Earl Isbell's practice location on file with NPPES is 250 S Grand Ave, Glendora, CA 91741-4218.
- What is Earl Isbell's phone number?
- The practice phone number listed in the NPPES registry for Earl Isbell is (626) 857-3170.
- Is Earl Isbell's NPI active?
- Yes — Earl Isbell's NPI (1447204839) is active in the NPPES registry as of the last update on 2017-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.