A randomized pilot study on the effect of niacin on pulmonary arterial pressure (opens in a new tab)
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Primary practice
Find Dr. McNamara's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. McNamara practices at MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
Dr. McNamara's NPI, 1477172500, was assigned on April 9, 2020. Dr. McNamara graduated from Georgetown University School of Medicine in 2020. Dr. McNamara holds District of Columbia license MD210011931.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. McNamara's primary practice is MedStar Washington Hospital Center, at 110 Irving Street NW, Washington, DC 20010 in The District County. The practice phone is (202) 877-7000.
Source: Dmand AI Affiliation Data
Dr. McNamara's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. Dr. McNamara is also affiliated with MedStar Georgetown University Hospital. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. McNamara to 3 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McNamara practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Washington Hospital Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Cardiovascular disease is Dr. McNamara's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. McNamara is licensed in District of Columbia.
Counts of cardiologists 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
CMS data shows 582 Medicare services from Dr. McNamara across 5 procedure codes in 2024, for 182 Medicare patients. Medicare paid $52,034 for them. Every service was in a facility, such as a hospital, rather than an office.
Medians across 97 cardiologists in District of Columbia with Dmand AI profiles that report each measure.
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. McNamara and other cardiologists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 182 Medicare patients who saw Dr. McNamara in 2024. The largest group is 75 to 84, with 69 patients. 75% of them have heart failure, and 75% have high blood pressure. 26% are also on Medicaid. Their average risk score is 2.96, 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. McNamara's median patient age at 68, with 31% women.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 68
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. McNamara wrote 144 Medicare Part D claims for 33 patients. 82% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $152 in total drug cost.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. McNamara for performance year 2024, reported as part of a group. Dr. McNamara accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dmand AI links 1 paper to Dr. McNamara in 2015.
Trials
See who Dr. McNamara researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. McNamara works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 16 general payments to Dr. McNamara from 6 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $154.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. McNamara graduated from Georgetown University School of Medicine in 2020.
Source: Dmand AI Professional 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (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
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Dr. Martin James McNamara's NPI number is 1477172500. It was assigned on April 9, 2020, and it is active in the NPI Registry.
Dr. Martin James McNamara is a cardiologist in Washington, District of Columbia. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Dr. McNamara practices at 110 Irving Street NW, Washington, DC 20010. Dr. McNamara's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. Dmand AI also links Dr. McNamara to 3 hospitals and 1 medical group.
The practice phone on file for Dr. McNamara is (202) 877-7000.
Dr. McNamara holds District of Columbia license MD210011931.
Dr. McNamara practices at MedStar Washington Hospital Center in Washington, District of Columbia. Dr. McNamara is also affiliated with MedStar Georgetown University Hospital. Dmand AI links Dr. McNamara to 3 more hospitals.
Dr. McNamara is linked to MedStar Medical Group. Dmand AI links Dr. McNamara to 1 more medical group.
Yes. CMS data shows Dr. McNamara billed Medicare for 582 services in 2024, and Dr. McNamara accepts Medicare assignment.
Dr. McNamara's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
CMS counts 182 Medicare patients who saw Dr. McNamara in 2024, with an average age of 73.
In 2024, Dr. McNamara's most billed Medicare services were hospital inpatient care (99233), heart test or procedure (93750) and hospital inpatient care (99223).
Dr. McNamara graduated from Georgetown University School of Medicine in 2020.
In 2024 Medicare Part D data, Dr. McNamara's most prescribed drugs by claims were Pantoprazole Sodium.
CMS Open Payments shows $312 in general payments to Dr. McNamara from 6 companies from 2023 to 2025. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
Dr. McNamara graduated from medical school in 2020, 6 years ago.
Dmand AI links 1 publication to Dr. McNamara.
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