James Brennan, PA-C
NPI 1164891917 · Physician Assistant · Baltimore, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Brennan, PA-C is a Physician Assistant provider in Baltimore, MD (NPI 1164891917).
Provider details
- NPI number
- 1164891917
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- C0005911 (MD)
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
10 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 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 207 | 21 |
| Clonazepam | 201 | 29 |
| Quetiapine Fumarate | 198 | 24 |
| Trazodone Hcl | 81 | 12 |
| Lamotrigine | 76 | 12 |
| Lorazepam | 76 | 11 |
| Gabapentin | 69 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,406 across 64 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
- 2015-09-23
- Last updated
- 2025-08-03
- Certified
- 2025-08-03
Frequently asked questions
- What is James Brennan's NPI number?
- James Brennan's National Provider Identifier (NPI) is 1164891917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Brennan's specialty?
- James Brennan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Brennan located?
- James Brennan's practice location on file with NPPES is 9000 Franklin Square Dr, Baltimore, MD 21237-3901.
- What is James Brennan's phone number?
- The practice phone number listed in the NPPES registry for James Brennan is (443) 777-7000.
- Does James Brennan accept Medicare?
- James Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Brennan's NPI active?
- Yes — James Brennan's NPI (1164891917) is active in the NPPES registry as of the last update on 2025-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.