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Edit this profileAt a glance
- 15225 Shady Grove Rd, Suite 201, Rockville, MD 20850
About Dr. Friedman
Based in Rockville, MD, Dennis C. Friedman, M.D. is listed in the NPI registry under cardiovascular disease. Dennis graduated from Perelman School of Med at the University of Pennsylvania in 1975. Dennis is also listed as specializing in interventional cardiology. Medicare claims data shows Dennis provided 4,606 services to 3,033 patients. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and injection, regadenoson, 0.1 mg. NPI 1922036359 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (301) 670-3000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
15225 SHADY GROVE RD SUITE 201
Rockville, MD 20850
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Specialized cardiovascular care
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Advanced imaging
- Cardiac computed tomography
- Coronary artery calcium scan
- Transesophageal echocardiogram
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Catheter-based diagnosis and treatment
Heart & circulation
Life Support
Office and noninvasive testing
- Cardiology consultation
- Exercise stress test
- Pharmacologic cardiac stress test
- Stress echocardiogram
- Transthoracic echocardiogram
- Ambulatory blood-pressure monitoring
Structural heart
Most searched procedures
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
4,606 services · 3,033 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
271 | More than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
1,353 | More than most peers in Cardiovascular Disease |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Treatment | 93015 |
273 | More than most peers in Cardiovascular Disease |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
106 | More often than most peers in Cardiovascular Disease |
| Heart rhythm recording of continous external ekg over 8-15 days | Treatment | 93246 |
36 | More often than most peers in Cardiovascular Disease |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
31 | As often as other peers in Cardiovascular Disease |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | Treatment | 93978 |
31 | As often as other peers in Cardiovascular Disease |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
29 | As often as other peers in Cardiovascular Disease |
| Ultrasound of leg arteries or artery grafts | Treatment | 93925 |
20 | Less often than most peers in Cardiovascular Disease |
| Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Treatment | 92928 |
16 | Less often than most peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiologists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 27 related providers in 4 groups
Other cardiologists in Rockville 4
Same specialty, same city.
Trained at Perelman School of Med at the University of Pennsylvania 8
Other providers in the same specialty who trained at the same institution.
Class of 1975 at Perelman School of Med at the University of Pennsylvania 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 7
Providers in MD who bill this service to Medicare most often.
Common questions
What does Dennis C. Friedman specialize in?
Dennis C. Friedman is a cardiologist in Rockville, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
Where is Dennis C. Friedman located?
Dennis C. Friedman is listed at 15225 Shady Grove Rd Suite 201, Rockville, MD 20850. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dennis C. Friedman's phone number?
The number on file is (301) 670-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dennis C. Friedman?
Dennis C. Friedman's National Provider Identifier is 1922036359. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dennis C. Friedman train?
Dennis C. Friedman attended Perelman School of Med at the University of Pennsylvania, graduating in 1975. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dennis C. Friedman have?
Dennis C. Friedman has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.
CMS public data
What does Dennis C. Friedman do most often?
According to Medicare billing data, Dennis C. Friedman performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and exercise or drug-induced heart stress test with electrocardiogram with supervision and review by physician, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dennis C. Friedman's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dennis C. Friedman. If this is you, claiming it is free.
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