Daniel Leonard Griffen Iii, MD - Medicare Cardiovascular Disease (cardiology) in Rockville, MD

Daniel Leonard Griffen Iii, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Rockville, Maryland. He went to University Of Iowa, Rj & L Carver College Of Medicine and graduated in 1982 and has 42 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Adventist Physician Services Inc and his current practice location is 15225 Shady Grove Rd, Suite 201, Rockville, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 670-3000.

Daniel Leonard Griffen Iii is licensed to practice in Maryland (license number D0042110) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1083640080.

Contact Information

Daniel Leonard Griffen Iii, MD
15225 Shady Grove Rd, Suite 201,
Rockville, MD 20850-3254
(301) 670-3000
(301) 924-0186

Map and Direction




Physician's Profile

Full NameDaniel Leonard Griffen Iii
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience42 Years
Location15225 Shady Grove Rd, Rockville, Maryland
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Daniel Leonard Griffen Iii attended and graduated from University Of Iowa, Rj & L Carver College Of Medicine in 1982
  NPI Data:
  • NPI Number: 1083640080
  • Provider Enumeration Date: 06/23/2006
  • Last Update Date: 05/15/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 0345315339
  • Enrollment ID: I20080827000053

Medical Identifiers

Medical identifiers for Daniel Leonard Griffen Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083640080NPI-NPPES
781811400MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease D0042110 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Healthcare Shady Grove Medical CenterRockville, MDHospital
Holy Cross Germantown HospitalGermantown, MDHospital
Adventist Healthcare White Oak Medical CenterSilver spring, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Adventist Physician Services Inc4284631540123

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Daniel Leonard Griffen Iii allows following entities to bill medicare on his behalf.
Entity NameCardiac Associates, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255473179
PECOS PAC ID: 8022005834
Enrollment ID: O20040426001014
Entity NameAdventist Physician Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376623207
PECOS PAC ID: 4284631540
Enrollment ID: O20061030000122

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Daniel Leonard Griffen Iii is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Daniel Leonard Griffen Iii, MD
15225 Shady Grove Rd, Suite 201,
Rockville, MD 20850-3254

Ph: (301) 670-3000
Daniel Leonard Griffen Iii, MD
15225 Shady Grove Rd, Suite 201,
Rockville, MD 20850-3254

Ph: (301) 670-3000

Reviews and Comments


Internal Medicine Doctors in Rockville, MD

Dr. Sheila Gay Levin, MD
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Phone: 301-340-3252    Fax: 301-340-1423
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Dr. Kajal Dasgupta, M.D.
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Joseph M Haggerty, M.D.
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Practice Location: 9707 Medical Center Dr, Suite 300, Rockville, MD 20850
Phone: 301-424-6231    Fax: 301-294-4648
Isabelle A Hertig, MD
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Phone: 301-881-5858    Fax: 301-260-2838
Dr. Wellington Sun, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 1401 Rockville Pike, Suite 300n, Rockville, MD 20852
Phone: 301-827-3070    Fax: 301-827-3532
Dr. Wei Fan, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2401 Research Blvd Ste 370, Rockville, MD 20850
Phone: 240-690-4114    Fax: 240-654-3915

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.