Christopher O'Brien, PA-C
NPI 1275125262 · Physician Assistant · Philadelphia, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher O'Brien, PA-C is a Physician Assistant provider in Philadelphia, PA (NPI 1275125262).
Provider details
- NPI number
- 1275125262
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
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 tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,352 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 355 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 252 | $75 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 210 | $16 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 115 | $41 |
| Automated Urinalysis Test81003 | 113 | $2 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 99 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 215 | 209 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 126 | 124 |
| Prednisone | 123 | 119 |
| Azithromycin | 120 | 118 |
| Methylprednisolone | 70 | 70 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 67 | 65 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-02-10
- Last updated
- 2021-09-29
- Certified
- 2021-09-29
Frequently asked questions
- What is Christopher O'Brien's NPI number?
- Christopher O'Brien's National Provider Identifier (NPI) is 1275125262, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher O'Brien's specialty?
- Christopher O'Brien is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christopher O'Brien located?
- Christopher O'Brien's practice location on file with NPPES is 1601 Cherry St, Philadelphia, PA 19102-1320.
- What is Christopher O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Christopher O'Brien is (215) 255-7700.
- Does Christopher O'Brien accept Medicare?
- Christopher O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher O'Brien's NPI active?
- Yes — Christopher O'Brien's NPI (1275125262) is active in the NPPES registry as of the last update on 2021-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.