Antibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy Protocols
Dr. Matthew Christopher Brennan, MD
NPI1639312739PAC ID0143532143
- Medicare services, 2024
- 1,052
- Medicare patients, 2024
- 430
- Part D claims, 2024
- 1,862
- Publications
- 3
- Hospital affiliations
- 3
- Practice address
- 2102 Harrisburg Pike, Lancaster, PA 17601
- Practice phone
- Call (717) 544-9400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Penn Medicine Lancaster General Health Physicians Hematology &Oncology
Lancaster, Pennsylvania
Find Dr. Brennan's professional email, personal email and mobile number
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Dr. Matthew Christopher Brennan is a hematologist and oncologist in Lancaster, Pennsylvania
Dr. Brennan practices at Penn Medicine Lancaster General Health Physicians Hematology &Oncology in Lancaster, Pennsylvania.
Dr. Brennan's NPI, 1639312739, was assigned on April 20, 2009. Dr. Brennan graduated from Pennsylvania State University College of Medicine in 2009. Dr. Brennan holds Pennsylvania license MD454667.
NPI and contact details
- NPI
- 1639312739NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143532143
- NPI enumeration date
- April 20, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (717) 544-9400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Christopher Brennan practices at Penn Medicine Lancaster General Health Physicians Hematology &Oncology in Lancaster, Pennsylvania
Dr. Brennan's primary practice is Penn Medicine Lancaster General Health Physicians Hematology &Oncology, at 2102 Harrisburg Pike, Lancaster, PA 17601 in Lancaster County. The practice phone is (717) 544-9400.
- Penn Medicine Lancaster General Health Physicians Hematology &Oncology2102 Harrisburg Pike, Lancaster, PA 17601 · Lancaster CountyPhone(717) 544-9400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Matthew Christopher Brennan is affiliated with 5 sites of care and 1 medical group
Dr. Brennan's primary practice is Penn Medicine Lancaster General Health Physicians Hematology &Oncology in Lancaster, Pennsylvania. Dr. Brennan is also affiliated with Lancaster General Hospital. The medical group on file is Penn Medicine Lancaster General Health Physicians, Behavioral Health. Dmand AI also links Dr. Brennan to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Penn Medicine Lancaster General Health Physicians Hematology &OncologyPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Matthew Christopher Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brennan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Penn Medicine Lancaster General Health Physicians Hematology &Oncology | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Christopher Brennan is one of 645 hematologists and oncologists in Pennsylvania
Hematology and oncology is Dr. Brennan's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Brennan is licensed in Pennsylvania.
Specialties and state licenses
- Hematology and oncology, PennsylvaniaPrimary
Hematologists and oncologists near Dr. Brennan
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Christopher Brennan billed Medicare for 1,052 services in 2024
CMS data shows 1,052 Medicare services from Dr. Brennan across 13 procedure codes in 2024, for 430 Medicare patients. Medicare paid $92,703 for them.
Medicare services, 20241,052
Medicare patients430
Paid by Medicare$92,703
Procedure codes13
Dr. Brennan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0502024: 9638%
- Other services
- 2023: 02024: 89
Where Dr. Brennan's Medicare services took place, 2024
- In an office92788%
- In a facility12512%
Dr. Brennan compared with the Pennsylvania median for hematologists and oncologists, 2024
- Dr. Brennan
- Pennsylvania median
- Medicare services
- 1,052vs 65461% above
- Medicare patients
- 430vs 22789% above
- Part D claims
- 1,549vs 3933.9 times
Medians across 600 hematologists and oncologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Brennan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brennan and other hematologists and oncologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew Christopher Brennan treated 430 Medicare patients in 2024, average age 75
CMS counts 430 Medicare patients who saw Dr. Brennan in 2024. The largest group is 65 to 74, with 190 patients. 74% of them have high blood pressure, and 74% have high cholesterol. 5% are also on Medicaid. Their average risk score is 2.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Brennan's median patient age at 73, with 42% women.
Medicare patients, 2024430
Average age75
Average risk score2.26
Also on Medicaid5%
Dr. Brennan's Medicare patients by age, 2024
Dr. Brennan's Medicare patients by sex, 2024
- Women15436%
- Men27664%
Chronic conditions among Dr. Brennan's Medicare patients, 2024
- High blood pressure74%
- High cholesterol74%
- Cancer54%
- Arthritis47%
- Chronic kidney disease38%
- Diabetes30%
- Ischemic heart disease30%
- Heart failure26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brennan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women42%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew Christopher Brennan wrote 1,862 Medicare Part D claims in 2024
In 2024, Dr. Brennan wrote 1,862 Medicare Part D claims for 282 patients. 71% of them were for generic drugs. CMS names the drug for 1,549 of them, across 42 drugs with 11 or more claims each, at $3,985,638 in total drug cost. In 2023, CMS named 1,404 claims across 37 drugs.
Part D claims, 20241,862
Drugs named by CMS42
Total drug cost$4M
Part D patients282
Dr. Brennan's Part D claims by kind of drug, 2024
- Generic1,331 claims71%
- Brand-name531 claims29%
Dr. Brennan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Brennan's Part D claims, 2024
- Opioids7%123 of 1,862 claims
- Antibiotics2%42 of 1,862 claims
- Antipsychotics, patients 65 and over3%58 of 1,862 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4042024: 1,54910%
Drugs named by CMS: 42 in 2024, 37 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Matthew Christopher Brennan offers telehealth to Medicare patients
Dr. Brennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Brennan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Matthew Christopher Brennan has 3 publications on record
Dmand AI links 3 papers to Dr. Brennan in 2013. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols. Dr. Brennan has published most often in Cancer Biol Ther. Dr. Brennan's most frequent co-authors are Timothy Judd Brown, MD, Thomas Dykes, MD and Michael J. Glantz, MD.
Papers3
Topics Dr. Brennan writes about most
- Antineoplastic Combined Chemotherapy Protocols
Dr. Brennan's most frequent co-authors
- Timothy Judd Brown, MD1 shared paper
- Thomas Dykes, MD1 shared paper
- Michael J. Glantz, MD1 shared paper
Recent publications by Dr. Brennan
Cancer Biol Ther
AdenocarcinomaAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, Tumor
BrainBrain NeoplasmsGlioblastoma
See who Dr. Brennan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Brennan works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew Christopher Brennan received $291 in industry payments from 2017 to 2023
CMS Open Payments shows 6 general payments to Dr. Brennan from 6 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 96% of the total. Alexion Pharmaceuticals, Inc. paid the most, $121.
General payments to Dr. Brennan by program year, 2017 to 2023
General payments to Dr. Brennan by kind, 2017 to 2023
$291in total
- Food and beverage$28096%
- Education$124%
Companies that paid Dr. Brennan the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Christopher Brennan graduated from Pennsylvania State University College of Medicine
Dr. Brennan graduated from Pennsylvania State University College of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew Christopher Brennan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Matthew Christopher Brennan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Matthew Christopher Brennan's NPI number?
Dr. Matthew Christopher Brennan's NPI number is 1639312739. It was assigned on April 20, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Christopher Brennan?
Dr. Matthew Christopher Brennan is a hematologist and oncologist in Lancaster, Pennsylvania. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Matthew Christopher Brennan practice?
Dr. Brennan practices at 2102 Harrisburg Pike, Lancaster, PA 17601. Dr. Brennan's primary practice is Penn Medicine Lancaster General Health Physicians Hematology &Oncology in Lancaster, Pennsylvania. Dmand AI also links Dr. Brennan to 2 hospitals and 1 group practice or clinic.
What is Dr. Matthew Christopher Brennan's office phone number?
The practice phone on file for Dr. Brennan is (717) 544-9400.
What is Dr. Matthew Christopher Brennan's medical license number?
Dr. Brennan holds Pennsylvania license MD454667.
Which hospitals is Dr. Matthew Christopher Brennan affiliated with?
Dr. Brennan is affiliated with Lancaster General Hospital. Dmand AI links Dr. Brennan to 2 more hospitals.
What medical group is Dr. Matthew Christopher Brennan part of?
Dr. Brennan is linked to Penn Medicine Lancaster General Health Physicians, Behavioral Health.
Does Dr. Matthew Christopher Brennan accept Medicare?
Yes. CMS data shows Dr. Brennan billed Medicare for 1,052 services in 2024, and Dr. Brennan accepts Medicare assignment.
Does Dr. Matthew Christopher Brennan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Brennan as offering telehealth services.
How many Medicare patients does Dr. Matthew Christopher Brennan see?
CMS counts 430 Medicare patients who saw Dr. Brennan in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. Matthew Christopher Brennan bill to Medicare?
In 2024, Dr. Brennan's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Matthew Christopher Brennan go to medical school?
Dr. Brennan graduated from Pennsylvania State University College of Medicine in 2009.
What drugs does Dr. Matthew Christopher Brennan prescribe most?
In 2024 Medicare Part D data, Dr. Brennan's most prescribed drugs by claims were Eliquis, Prednisone and Ondansetron HCl.
Has Dr. Matthew Christopher Brennan received payments from drug or device companies?
CMS Open Payments shows $291 in general payments to Dr. Brennan from 6 companies from 2017 to 2023. The largest total came from Alexion Pharmaceuticals, Inc.
How long has Dr. Matthew Christopher Brennan been practicing?
Dr. Brennan graduated from medical school in 2009, 17 years ago.
Does Dr. Matthew Christopher Brennan do research?
Dmand AI links 3 publications to Dr. Brennan.
Who does Dr. Matthew Christopher Brennan publish with?
Dr. Brennan's most frequent co-authors are Timothy Judd Brown, MD (1 shared paper), Thomas Dykes, MD (1 shared paper) and Michael J. Glantz, MD (1 shared paper).
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