Matthew Brennan, M.D.
NPI 1639312739 · Hematology & Oncology Physician · Lancaster, PA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Brennan, M.D. is a Hematology & Oncology Physician provider in Lancaster, PA (NPI 1639312739).
Provider details
- NPI number
- 1639312739
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
1,052 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 341 | $171 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 213 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 195 | $85 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 89 | $16 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 45 | $47 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 202 | 41 |
| Prednisone | 112 | 44 |
| Ondansetron Hcl | 108 | 79 |
| Enzalutamidebrand: Xtandi | 74 | 11 |
| Olanzapine | 66 | 41 |
| Acyclovir | 65 | 20 |
| Levothyroxine Sodium | 65 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-20
- Last updated
- 2016-01-15
Frequently asked questions
- What is Matthew Brennan's NPI number?
- Matthew Brennan's National Provider Identifier (NPI) is 1639312739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Brennan's specialty?
- Matthew Brennan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Brennan located?
- Matthew Brennan's practice location on file with NPPES is 2102 Harrisburg Pike, Lancaster, PA 17601-2644.
- What is Matthew Brennan's phone number?
- The practice phone number listed in the NPPES registry for Matthew Brennan is (717) 544-9400.
- Does Matthew Brennan accept Medicare?
- Matthew Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Brennan's NPI active?
- Yes — Matthew Brennan's NPI (1639312739) is active in the NPPES registry as of the last update on 2016-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.