Daniel Griffen, M.D.
NPI 1083640080 · Cardiovascular Disease Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Griffen, M.D. is a Cardiovascular Disease Physician provider in Rockville, MD (NPI 1083640080).
Provider details
- NPI number
- 1083640080
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0042110 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
8,541 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 2,477 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,873 | $141 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 1,416 | $220 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 1,397 | $72 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 600 | $100 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 539 | 161 |
| Apixabanbrand: Eliquis | 481 | 138 |
| Metoprolol Succinate | 479 | 160 |
| Rosuvastatin Calcium | 389 | 128 |
| Amlodipine Besylate | 387 | 123 |
| Losartan Potassium | 375 | 122 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$776 across 27 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-23
- Last updated
- 2009-05-15
Frequently asked questions
- What is Daniel Griffen's NPI number?
- Daniel Griffen's National Provider Identifier (NPI) is 1083640080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Griffen's specialty?
- Daniel Griffen is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Griffen located?
- Daniel Griffen's practice location on file with NPPES is 15225 Shady Grove Rd, Rockville, MD 20850-3254.
- What is Daniel Griffen's phone number?
- The practice phone number listed in the NPPES registry for Daniel Griffen is (301) 670-3000.
- Does Daniel Griffen accept Medicare?
- Daniel Griffen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Griffen's NPI active?
- Yes — Daniel Griffen's NPI (1083640080) is active in the NPPES registry as of the last update on 2009-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.