Mallory Brennan, PA-C
NPI 1588070858 · Medical Physician Assistant · Allentown, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mallory Brennan, PA-C is a Medical Physician Assistant provider in Allentown, PA (NPI 1588070858).
Provider details
- NPI number
- 1588070858
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- MA056929 (PA)
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
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
116 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 54 | $162 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 47 | $64 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 | $100 |
Typical Medicare-allowed amounts for these services range $64–$162 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-07-08
- Last updated
- 2018-02-19
Frequently asked questions
- What is Mallory Brennan's NPI number?
- Mallory Brennan's National Provider Identifier (NPI) is 1588070858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory Brennan's specialty?
- Mallory Brennan is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mallory Brennan located?
- Mallory Brennan's practice location on file with NPPES is 1250 S Cedar Crest Blvd Ste 405, Allentown, PA 18103-6224.
- What is Mallory Brennan's phone number?
- The practice phone number listed in the NPPES registry for Mallory Brennan is (610) 402-8420.
- Does Mallory Brennan accept Medicare?
- Mallory Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mallory Brennan's NPI active?
- Yes — Mallory Brennan's NPI (1588070858) is active in the NPPES registry as of the last update on 2018-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.