David Kirshbaum, PA-C
NPI 1801855861 · Physician Assistant · Rancho Cucamonga, CA
David Kirshbaum, PA-C is a Physician Assistant provider in Rancho Cucamonga, CA (NPI 1801855861).
Provider details
- NPI number
- 1801855861
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA14700 (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
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 354 | 94 |
| Atorvastatin Calcium | 324 | 106 |
| Simvastatin | 173 | 53 |
| Losartan Potassium | 155 | 50 |
| Metformin Hcl | 151 | 51 |
| Irbesartan | 139 | 43 |
| Amlodipine Besylate | 136 | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$867 across 42 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
- 2006-03-20
- Last updated
- 2009-10-15
Frequently asked questions
- What is David Kirshbaum's NPI number?
- David Kirshbaum's National Provider Identifier (NPI) is 1801855861, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Kirshbaum's specialty?
- David Kirshbaum is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is David Kirshbaum located?
- David Kirshbaum's practice location on file with NPPES is 8283 Grove Ave, Rancho Cucamonga, CA 91730-3137.
- What is David Kirshbaum's phone number?
- The practice phone number listed in the NPPES registry for David Kirshbaum is (909) 981-6644.
- Is David Kirshbaum's NPI active?
- Yes — David Kirshbaum's NPI (1801855861) is active in the NPPES registry as of the last update on 2009-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.