Active NPI
Eliana Assimakopoulos, PAC
- Physician Assistant
- Olney, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- C0001340
- Practice address
- 18101 Prince Philip Drive
Olney, MD 20832 - Phone
- (301) 774-8900
- Fax
- (301) 570-8574
- NPI assigned
- Mar 21, 2006
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | C0001340 | MD | Primary |
Addresses
Primary practice location
18101 Prince Philip Drive
Olney, MD 20832
Mailing address
1300 Piccard Drive
Ste 202
Rockville, MD 20850-4303
Phone (301) 921-7900
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MD, DC
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 2
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20101105000767 | MD | Practitioner - Physician Assistant | 3173419017 | Reassigns benefits to 3 organizations |
| I20111104000101 | DC | Practitioner - Physician Assistant | 3173419017 | Reassigns benefits to 3 organizations |
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 1995
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
- Medstar Urgent Care LLC
Practice addresses (Care Compare)
11915 Georgia Ave
Wheaton, MD 20902-2065
Phone (301) 942-4505
12111 Darnestown Rd
Gaithersburg, MD 20878-3211
Phone (301) 926-3095
12220 Rockville Pike
Rockville, MD 20852-1608
Phone (301) 881-0103
18045 Georgia Ave
Olney, MD 20832-2237
Phone (301) 774-8026
19777 Frederick Rd
Germantown, MD 20876-1307
Phone (240) 388-9314
20 University Blvd E
Silver Spring, MD 20901-2436
Phone (240) 863-2720
201 Shorebird St
Suite B
Frederick, MD 21701-1962
Phone (240) 422-8112
3064 Waldorf Market PL
Waldorf, MD 20603-4871
Phone (301) 932-5960
350 Fortune Ter
Suite D
Potomac, MD 20854-2910
Phone (443) 584-5323
4507 Stanford St
Bethesda, MD 20815-5205
Phone (443) 302-9258
6317 York Rd
Baltimore, MD 21212-2310
Phone (443) 777-6890
8605 Ridgelys Choice Dr
Nottingham, MD 21236-2953
Phone (410) 248-2310
882 Muddy Branch Rd
Gaithersburg, MD 20878-2780
Phone (301) 216-1245
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| C0001340 | MD | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Medstar Urgent Care LLC | Current | Accepting new patients | |
| Medstar Urgent Care, LLC | Current | Accepting new patients | |
| Alexandria Springfield Emergency Physicians PC | Current | Accepting new patients | |
| Alexandria Springfield Emergency Physicians PC | Current | Accepting new patients | |
| Emergency Medicine Associates P.a., P.C. | Current | Accepting new patients | |
| Emergency Medicine Associates, PA | Current | Accepting new patients | |
| Medstar Urgent Care LLC | Current | Accepting new patients | |
| Emergency Medicine Associates, PA | Current | Accepting new patients | |
| Mid-Atlantic Critical Care Services,L.L.C. | Past | Accepting new patients | |
| Emergency Medicine Associates P.a., P.C. | Past | Accepting new patients |
Locations
6317 York Rd
Baltimore, MD 21212
Phone (443) 777-6890
7698 Dorchester Blvd
Ste 204
Hanover, MD 21076
18101 Prince Philip Dr
Olney, MD 20832
Phone (301) 774-8618
12220 Rockville Pike
Rockville, MD 20852
Phone (301) 468-6483
350 Fortune Ter
Ste D
Rockville, MD 20854
Phone (301) 309-0016
3064 Waldorf Market Pl
Waldorf, MD 20603
Phone (301) 932-5960
3350 Crain Hwy
Waldorf, MD 20603
Phone (443) 332-4260
200 Memorial Ave
Westminster, MD 21157
Phone (410) 848-3000
11915 Georgia Ave
Wheaton, MD 20902
Phone (301) 942-4505
4320 Seminary Rd
Alexandria, VA 22304
Phone (703) 504-3000
1701 N George Mason Dr
Arlington, VA 22205
Phone (703) 558-5000
15225 Heathcote Blvd
Haymarket, VA 20169
Phone (571) 284-1000
Organizations & group practices 12
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Emergency Medicine Physician
- Franklin, VA
- NPI 1740529700
DC
-
- Emergency Medicine Physician
- Falls Church, VA
- NPI 1134117393
DC, MD
-
- Emergency Medicine Physician
- Bowie, MD
- NPI 1225889272
-
- Emergency Medicine Physician
- Aberdeen, MD
- NPI 1609627082
-
- General Practice Physician
- Lexington Park, MD
- NPI 1275410474
-
- Urgent Care Clinic/Center
- Baltimore, MD
- NPI 1942623319
-
- Emergency Medicine Physician
- Alexandria, VA
- NPI 1720839764
-
- Internal Medicine Physician
- Culpeper, VA
- NPI 1881559102
-
- Critical Care Medicine (Internal Medicine) Physician
- Takoma Park, MD
- NPI 1164455853
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1142899200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1699734384",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1300 PICCARD DRIVE",
"address_2": "STE 202",
"city": "ROCKVILLE",
"state": "MD",
"postal_code": "208504303",
"telephone_number": "301-921-7900",
"fax_number": "301-921-7915"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "18101 PRINCE PHILIP DRIVE",
"city": "OLNEY",
"state": "MD",
"postal_code": "20832",
"telephone_number": "301-774-8900",
"fax_number": "301-570-8574"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ASSIMAKOPOULOS",
"first_name": "ELIANA",
"credential": "PAC",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2006-03-21",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "MD",
"license": "C0001340",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Olney, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.