Christopher Diaz, PA-C
NPI 1821594391 · Medical Physician Assistant · Philadelphia, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Diaz, PA-C is a Medical Physician Assistant provider in Philadelphia, PA (NPI 1821594391).
Provider details
- NPI number
- 1821594391
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- MA059723 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
8 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 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 198 | 38 |
| Rosuvastatin Calcium | 138 | 31 |
| Atorvastatin Calcium | 133 | 29 |
| Amlodipine Besylate | 112 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 73 | 19 |
| Tamsulosin Hcl | 72 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,398 across 41 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
- 2018-04-03
- Last updated
- 2023-11-10
- Certified
- 2023-11-10
Frequently asked questions
- What is Christopher Diaz's NPI number?
- Christopher Diaz's National Provider Identifier (NPI) is 1821594391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Diaz's specialty?
- Christopher Diaz is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christopher Diaz located?
- Christopher Diaz's practice location on file with NPPES is 1233 Locust St, Philadelphia, PA 19107-5453.
- What is Christopher Diaz's phone number?
- The practice phone number listed in the NPPES registry for Christopher Diaz is (215) 985-4448.
- Does Christopher Diaz accept Medicare?
- Christopher Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Diaz's NPI active?
- Yes — Christopher Diaz's NPI (1821594391) is active in the NPPES registry as of the last update on 2023-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.