Dr. Mary Carter Denny, MD, MPH

  • Washington, DC
  • Neurologist
NPI1558688994PAC ID4587952783
Medicare services, 2024
408
Medicare patients, 2024
225
Part D claims, 2024
353
Publications
10
MIPS score, 2024
83
Practice address
3800 Reservoir NW Rd, Washington, DC 20007
Practice phone
Call (202) 444-1400
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Medstar Georgetown Medical Center

Washington, District of Columbia

See all 8 affiliations

Find Dr. Denny'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.

View contacts for free

Dr. Mary Carter Denny is a neurologist in Washington, District of Columbia

Dr. Denny practices at Medstar Georgetown Medical Center in Washington, District of Columbia.

Dr. Denny's NPI, 1558688994, was assigned on April 26, 2010. Dr. Denny graduated from Tulane School of Medicine in 2010. Dr. Denny's Texas license number on file is Q1129.

NPI and contact details
Medicare PAC ID
4587952783
NPI enumeration date
April 26, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(202) 444-1400
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mary Carter Denny practices at Medstar Georgetown Medical Center in Washington, District of Columbia

Dr. Denny's primary practice is Medstar Georgetown Medical Center, at 3800 Reservoir NW Rd, Washington, DC 20007 in District Of Columbia County. The practice phone is (202) 444-1400.

  • Medstar Georgetown Medical Center
    3800 Reservoir NW Rd, Washington, DC 20007 · District Of Columbia CountyPhone(202) 444-1400

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Mary Carter Denny is affiliated with 5 sites of care and 3 medical groups

Dr. Denny's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dr. Denny is also affiliated with MedStar Washington Hospital Center. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Denny to 2 more hospitals, 2 medical groups and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Dr. Denny

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mary Carter Denny's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Denny practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Medstar Georgetown Medical CenterAvailable with a free account
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Denny practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Mary Carter Denny is one of 98 neurologists in District of Columbia

Neurology is Dr. Denny's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Denny is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Denny's licenses on file in 5 states: Texas, District of Columbia, Maryland, Virginia and Pennsylvania.

Specialties and state licenses

  • Neurology, TexasPrimaryLicense Q1129 · 2014 to 2017 · taxonomy 2084N0400X
  • District of Columbia license2011 to 2026
  • Maryland license2016 to 2026
  • Virginia license2020 to 2026
  • Pennsylvania license2014

Clinical focus

Dmand AI lists acute mini-stroke (TIA), cerebrovascular disease, epilepsy, head injury, mini-stroke (TIA), neck pain and spine problems, neuropathy and sleep apnea among the conditions Dr. Denny treats.

Neurologists near Dr. Denny

Counts of neurologists 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. Mary Carter Denny billed Medicare for 408 services in 2024

CMS data shows 408 Medicare services from Dr. Denny across 9 procedure codes in 2024, for 225 Medicare patients. Medicare paid $48,072 for them.

Medicare services, 2024408
Medicare patients225
Paid by Medicare$48,072
Procedure codes9

Dr. Denny's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2832024: 34321%
Other services
2023: 912024: 6529%

Where Dr. Denny's Medicare services took place, 2024

  • In an office22856%
  • In a facility18044%

Dr. Denny compared with the District of Columbia median for neurologists, 2024

  • Dr. Denny
  • District of Columbia median
Medicare services
408vs 29737% above
Medicare patients
225vs 13468% above
Part D claims
212vs 703.0 times

Medians across 85 neurologists in District of Columbia with Dmand AI profiles that report each measure.

Dr. Denny'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.

See all procedures by Dr. Denny

Need commercial claims for Dr. Denny?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Denny and other neurologists in District of Columbia.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mary Carter Denny treated 225 Medicare patients in 2024, average age 75

CMS counts 225 Medicare patients who saw Dr. Denny in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.81, 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. Denny's median patient age at 64, with 54% women.

Medicare patients, 2024225
Average age75
Average risk score1.81
Also on Medicaid20%

Dr. Denny's Medicare patients by age, 2024

Dr. Denny's Medicare patients by sex, 2024

  • Women14364%
  • Men8236%

Chronic conditions among Dr. Denny's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Stroke or TIA75%
  4. Arthritis55%
  5. Mood disorders41%
  6. Atrial fibrillation40%
  7. Diabetes40%
  8. Ischemic heart disease40%

Share of Medicare patients with each condition. A patient can have several.

Dr. Denny's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women54%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mary Carter Denny wrote 353 Medicare Part D claims in 2024

In 2024, Dr. Denny wrote 353 Medicare Part D claims for 75 patients. 86% of them were for generic drugs. CMS names the drug for 212 of them, across 11 drugs with 11 or more claims each, at $56,989 in total drug cost. In 2023, CMS named 200 claims across 8 drugs.

Part D claims, 2024353
Drugs named by CMS11
Total drug cost$56,989
Part D patients75

Dr. Denny's Part D claims by kind of drug, 2024

  • Generic304 claims86%
  • Brand-name49 claims14%

Dr. Denny'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2002024: 2126%

Drugs named by CMS: 11 in 2024, 8 in 2023.

See all prescribing by Dr. Denny

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. Mary Carter Denny scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Denny for performance year 2024, reported as part of a group. Dr. Denny accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Denny as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Denny's MIPS scores, performance year 2024

  • 83of 100Final score
  • 72.9of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 68of 100Cost

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

For MedTech and pharma teams

Find neurologists like Dr. Denny by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Mary Carter Denny has 10 publications on record

Dmand AI links 10 papers to Dr. Denny, published from 2014 to 2023. 2016 was the busiest year, with 2. The most frequent topics are Stroke, Brain Ischemia and Patient Education as Topic. Dr. Denny has published most often in Neurohospitalist. Dr. Denny's most frequent co-authors are Sean Isaac Savitz, MD, Anjail Zarinah Sharrief, MD and Nathan Andrew Bicher, MD.

Papers10
Years published2014 to 2023

Dr. Denny's papers by year, 2014 to 2023

Topics Dr. Denny writes about most

  • Stroke
  • Brain Ischemia
  • Patient Education as Topic
  • Thrombectomy

Dr. Denny's most frequent co-authors

Recent publications by Dr. Denny

See all 10 publications and co-authors

See who Dr. Denny researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Denny works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mary Carter Denny received $6,309 in industry payments from 2016 to 2025

CMS Open Payments shows 21 general payments to Dr. Denny from 5 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 34% of the total. Abbott Laboratories paid the most, $5,881.

General payments to Dr. Denny by program year, 2016 to 2025

General payments to Dr. Denny by kind, 2016 to 2025

$6.3Kin total
  • Speaker and faculty fees$2,13834%
  • Travel and lodging$1,91930%
  • Compensation for serving as faculty or as a speaker for a medical education program$1,35021%
  • Food and beverage$75312%
  • Consulting fees$1502%

Companies that paid Dr. Denny the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Denny

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mary Carter Denny graduated from Tulane School of Medicine

Dr. Denny graduated from Tulane School of Medicine in 2010.

  1. Medical schoolTulane School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology
  3. Board certified in vascular neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Mary Carter Denny accepts plans from 17 insurance carriers

Dr. Denny is in network with 17 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • CareFirst BlueCross BlueShield
  • Cigna
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • +9 more carriersWith a free account

Plan types Dr. Denny accepts, by number of carriers

  1. PPO12
  2. Medicare9
  3. HMO8
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Mary Carter Denny's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mary Carter Denny

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. Mary Carter Denny's NPI number?

Dr. Mary Carter Denny's NPI number is 1558688994. It was assigned on April 26, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary Carter Denny?

Dr. Mary Carter Denny is a neurologist in Washington, District of Columbia. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Mary Carter Denny practice?

Dr. Denny practices at 3800 Reservoir NW Rd, Washington, DC 20007. Dr. Denny's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dmand AI also links Dr. Denny to 2 hospitals, 2 medical groups and 1 group practice or clinic.

What is Dr. Mary Carter Denny's office phone number?

The practice phone on file for Dr. Denny is (202) 444-1400.

What is Dr. Mary Carter Denny's medical license number?

Dr. Denny's Texas license number on file is Q1129, one of the licenses on file in 5 states.

Which states has Dr. Mary Carter Denny been licensed in?

Dmand AI has state licenses on file for Dr. Denny in Texas (2014 to 2017), District of Columbia (2011 to 2026), Maryland (2016 to 2026), Virginia (2020 to 2026) and Pennsylvania (2014).

Which hospitals is Dr. Mary Carter Denny affiliated with?

Dr. Denny is affiliated with MedStar Washington Hospital Center. Dmand AI links Dr. Denny to 2 more hospitals.

What medical group is Dr. Mary Carter Denny part of?

Dr. Denny is linked to MedStar Medical Group. Dmand AI links Dr. Denny to 2 more medical groups.

Does Dr. Mary Carter Denny accept Medicare?

Yes. CMS data shows Dr. Denny billed Medicare for 408 services in 2024, and Dr. Denny accepts Medicare assignment.

Does Dr. Mary Carter Denny offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Denny as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Mary Carter Denny's MIPS score?

Dr. Denny's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Dr. Mary Carter Denny see?

CMS counts 225 Medicare patients who saw Dr. Denny in 2024, with an average age of 75.

Is Dr. Mary Carter Denny board certified?

Yes. Dr. Denny is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Mary Carter Denny bill to Medicare?

In 2024, Dr. Denny's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and critical care (99291).

Where did Dr. Mary Carter Denny go to medical school?

Dr. Denny graduated from Tulane School of Medicine in 2010.

What drugs does Dr. Mary Carter Denny prescribe most?

In 2024 Medicare Part D data, Dr. Denny's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Nortriptyline HCl.

Has Dr. Mary Carter Denny received payments from drug or device companies?

CMS Open Payments shows $6,309 in general payments to Dr. Denny from 5 companies from 2016 to 2025. The largest total came from Abbott Laboratories.

How long has Dr. Mary Carter Denny been practicing?

Dr. Denny graduated from medical school in 2010, 16 years ago.

Does Dr. Mary Carter Denny do research?

Dmand AI links 10 publications to Dr. Denny, published from 2014 to 2023.

Who does Dr. Mary Carter Denny publish with?

Dr. Denny's most frequent co-authors are Sean Isaac Savitz, MD (4 shared papers), Anjail Zarinah Sharrief, MD (3 shared papers) and Nathan Andrew Bicher, MD (1 shared paper).

What insurance does Dr. Mary Carter Denny accept?

Dr. Denny is in network with 17 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Selling to neurology practices?

See neurologists in District of Columbia by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)