Dr. Dennis Aloysius Cullen, MD
- Medicare services, 2024
- 2,750
- Medicare patients, 2024
- 490
- Part D claims, 2024
- 5,152
- Hospital affiliations
- 2
- Industry payments
- $265
- Practice address
- 7625 Wisconsin Ave, Bethesda, MD 20814
- Practice phone
- Call (571) 366-8850
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Privia Medical Group
Bethesda, Maryland
Find Dr. Cullen's professional email, personal email and mobile number
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Dr. Dennis Aloysius Cullen is an internist in Bethesda, Maryland
Dr. Cullen practices at Privia Medical Group in Bethesda, Maryland.
Dr. Cullen's NPI, 1104988054, was assigned on December 15, 2006. Dr. Cullen graduated from Georgetown University School of Medicine in 1982. Dr. Cullen holds Maryland license D0040216.
- NPI
- 1104988054NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739229774
- NPI enumeration date
- December 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (571) 366-8850
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dennis Aloysius Cullen practices at Privia Medical Group in Bethesda, Maryland
Dr. Cullen's primary practice is Privia Medical Group, at 7625 Wisconsin Ave, Bethesda, MD 20814 in Montgomery County. The practice phone is (571) 366-8850.
- Privia Medical Group7625 Wisconsin Ave, Bethesda, MD 20814 · Montgomery CountyPhone(571) 366-8850
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Dennis Aloysius Cullen is affiliated with 8 sites of care and 3 medical groups
Dr. Cullen's primary practice is Privia Medical Group in Bethesda, Maryland. Dr. Cullen is also affiliated with MedStar Georgetown University Hospital. The medical group on file is Privia Medical Group. Dmand AI also links Dr. Cullen to 1 more hospital, 3 group practices and clinics, 2 home health agencies and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Dennis Aloysius Cullen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cullen practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Privia Medical Group | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dennis Aloysius Cullen is one of 3,320 internists in Maryland
Internal medicine is Dr. Cullen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Cullen's licenses on file in 2 states: Maryland and District of Columbia.
Specialties and state licenses
- Internal medicine, MarylandPrimary
- District of Columbia license
Internists near Dr. Cullen
Counts of internists 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. Dennis Aloysius Cullen billed Medicare for 2,750 services in 2024
CMS data shows 2,750 Medicare services from Dr. Cullen across 18 procedure codes in 2024, for 490 Medicare patients. Medicare paid $137,697 for them. Every service was in an office.
Dr. Cullen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0672024: 1,0086%
- Other services
- 2023: 7122024: 6874%
- Surgery
- 2023: 4582024: 54018%
- Tests and treatments
- 2023: 4492024: 39811%
- Drugs given in the office
- 2023: 692024: 11770%
Dr. Cullen compared with the Maryland median for internists, 2024
- Dr. Cullen
- Maryland median
- Medicare services
- 2,750vs 6564.2 times
- Medicare patients
- 490vs 25195% above
- Part D claims
- 4,476vs 30914.5 times
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Cullen'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. Cullen and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dennis Aloysius Cullen treated 490 Medicare patients in 2024, average age 76
CMS counts 490 Medicare patients who saw Dr. Cullen in 2024. The largest group is 65 to 74, with 211 patients. 75% of them have high cholesterol, and 48% have high blood pressure. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Cullen's median patient age at 67, with 40% women.
Dr. Cullen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cullen's Medicare patients by sex, 2024
- Women24350%
- Men24750%
Chronic conditions among Dr. Cullen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure48%
- Arthritis37%
- Cancer20%
- Atrial fibrillation19%
- Ischemic heart disease19%
- Diabetes13%
- Mood disorders13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cullen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women40%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dennis Aloysius Cullen wrote 5,152 Medicare Part D claims in 2024
In 2024, Dr. Cullen wrote 5,152 Medicare Part D claims for 518 patients. 88% of them were for generic drugs. CMS names the drug for 4,476 of them, across 97 drugs with 11 or more claims each, at $472,529 in total drug cost. In 2023, CMS named 3,507 claims across 87 drugs.
Dr. Cullen's Part D claims by kind of drug, 2024
- Generic4,528 claims88%
- Brand-name609 claims12%
- Other15 claims0%
Dr. Cullen'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. Cullen's Part D claims, 2024
- Opioids1%36 of 5,152 claims
- Antibiotics3%166 of 5,152 claims
- Antipsychotics, patients 65 and over1%26 of 5,152 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: 3,5072024: 4,47628%
Drugs named by CMS: 97 in 2024, 87 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
How Dr. Dennis Aloysius Cullen takes part in Medicare
Dr. Cullen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 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. Dennis Aloysius Cullen received $265 in industry payments from 2016 to 2022
CMS Open Payments shows 8 general payments to Dr. Cullen from 6 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 95% of the total. Novo Nordisk Inc paid the most, $132.
General payments to Dr. Cullen by program year, 2016 to 2022
General payments to Dr. Cullen by kind, 2016 to 2022
- Food and beverage$25195%
- Education$145%
Companies that paid Dr. Cullen the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dennis Aloysius Cullen graduated from Georgetown University School of Medicine
Dr. Cullen graduated from Georgetown University School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dennis Aloysius Cullen'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) |
| 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. Dennis Aloysius Cullen
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. Dennis Aloysius Cullen's NPI number?
Dr. Dennis Aloysius Cullen's NPI number is 1104988054. It was assigned on December 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Dennis Aloysius Cullen?
Dr. Dennis Aloysius Cullen is an internist in Bethesda, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Dennis Aloysius Cullen practice?
Dr. Cullen practices at 7625 Wisconsin Ave, Bethesda, MD 20814. Dr. Cullen's primary practice is Privia Medical Group in Bethesda, Maryland. Dmand AI also links Dr. Cullen to 1 hospital, 3 group practices and clinics, 2 home health agencies and 2 medical groups.
What is Dr. Dennis Aloysius Cullen's office phone number?
The practice phone on file for Dr. Cullen is (571) 366-8850.
What is Dr. Dennis Aloysius Cullen's medical license number?
Dr. Cullen holds Maryland license D0040216, one of the licenses on file in 2 states.
Which states has Dr. Dennis Aloysius Cullen been licensed in?
Dmand AI has state licenses on file for Dr. Cullen in Maryland and District of Columbia.
Which hospitals is Dr. Dennis Aloysius Cullen affiliated with?
Dr. Cullen is affiliated with MedStar Georgetown University Hospital. Dmand AI links Dr. Cullen to 1 more hospital.
What medical group is Dr. Dennis Aloysius Cullen part of?
Dr. Cullen is linked to Privia Medical Group. Dmand AI links Dr. Cullen to 2 more medical groups.
Does Dr. Dennis Aloysius Cullen accept Medicare?
Yes. CMS data shows Dr. Cullen billed Medicare for 2,750 services in 2024, and Dr. Cullen accepts Medicare assignment.
How many Medicare patients does Dr. Dennis Aloysius Cullen see?
CMS counts 490 Medicare patients who saw Dr. Cullen in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Dennis Aloysius Cullen bill to Medicare?
In 2024, Dr. Cullen's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and heart test or procedure (93000).
Where did Dr. Dennis Aloysius Cullen go to medical school?
Dr. Cullen graduated from Georgetown University School of Medicine in 1982.
What drugs does Dr. Dennis Aloysius Cullen prescribe most?
In 2024 Medicare Part D data, Dr. Cullen's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.
Has Dr. Dennis Aloysius Cullen received payments from drug or device companies?
CMS Open Payments shows $265 in general payments to Dr. Cullen from 6 companies from 2016 to 2022. The largest total came from Novo Nordisk Inc.
How long has Dr. Dennis Aloysius Cullen been practicing?
Dr. Cullen graduated from medical school in 1982, 44 years ago.
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