Ian Donahue, PA-C
NPI 1023406725 · Physician Assistant · Upland, CA
Ian Donahue, PA-C is a Physician Assistant provider in Upland, CA (NPI 1023406725).
Provider details
- NPI number
- 1023406725
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 51838 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 135 | 128 |
| Pantoprazole Sodium | 122 | 61 |
| Dicyclomine Hcl | 93 | 40 |
| Linaclotidebrand: Linzess | 83 | 36 |
| Omeprazole | 66 | 33 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 60 | 57 |
| Famotidine | 59 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,213 across 63 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
- 2015-01-03
- Last updated
- 2015-01-03
Frequently asked questions
- What is Ian Donahue's NPI number?
- Ian Donahue's National Provider Identifier (NPI) is 1023406725, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Donahue's specialty?
- Ian Donahue is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ian Donahue located?
- Ian Donahue's practice location on file with NPPES is 1310 San Bernardino Rd, Upland, CA 91786-4979.
- What is Ian Donahue's phone number?
- The practice phone number listed in the NPPES registry for Ian Donahue is (909) 920-0444.
- Is Ian Donahue's NPI active?
- Yes — Ian Donahue's NPI (1023406725) is active in the NPPES registry as of the last update on 2015-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.