Active NPI
Rachel Elizabeth Modarelli, MD
- Pediatric Endocrinology Physician
- Fairfax, VA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Endocrinology Physician
- License
- 0101285263
- Practice address
- 8280 Willow Oaks Corporate Dr Ste 300
Fairfax, VA 22031-4526 - Phone
- (571) 472-4300
- Fax
- (571) 665-6771
- NPI assigned
- Mar 29, 2019
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatric Endocrinology Physician | 2080P0205X | 0101285263 | VA | Primary |
| Pediatrics Physician | 208000000X | 0101285263 | VA |
Addresses
Primary practice location
8280 Willow Oaks Corporate Dr Ste 300
Fairfax, VA 22031-4526
Mailing address
PO Box 37174
Baltimore, MD 21297-3174
Phone (571) 423-5699
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in DC, VA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20250911002238 | DC | Practitioner - Pediatric Medicine | 2860995396 | Reassigns benefits to 1 organization |
| I20251002000137 | VA | Practitioner - Pediatric Medicine | 2860995396 | Reassigns benefits to 1 organization |
Care Compare profile
Medicare Care Compare- Specialty
- Pediatric Medicine
- Education
- Texas a & M University System, HSC, College of Medicine, 2019
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
8095 Innovation Park Dr
Fairfax, VA 22031-4868
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0101285263 | VA | MD | Pediatrics Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Inova Health Care Services | Pediatrics | Current | Accepting new patients |
| Inova Health Care Services | Current | Accepting new patients | |
| Inova Health Care Services | Current | Accepting new patients | |
| Inova Health Care Services | Past | Accepting new patients |
Locations
8095 Innovation Park Dr
Bldg C
Fairfax, VA 22031
Phone (571) 472-6253
8280 Willow Oaks Corporate Dr
Ste 300
Fairfax, VA 22031
Phone (571) 200-1839
3300 Gallows Rd
Falls Church, VA 22042
Phone (703) 352-9395
224B Cornwall St NW
Leesburg, VA 20176
Phone (703) 771-2894
44045 Riverside Pkwy
Leesburg, VA 20176
Phone (703) 858-6040
Interoperability endpoints
- rmodarelli253748@directhisp.wakemed.org
- rmodarelli873771@direct.unc.nchie.net
- rmodarelli1466292@soc.inova.org
Organizations & group practices 4
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.
-
- Internal Medicine Physician
- Falls Church, VA
- NPI 1952320061
DC, Pediatrics, VA
-
- Medical Technologist
- Sterling, VA
- NPI 1699655589
-
- Diagnostic Radiology Physician
- Waldorf, MD
- NPI 1851829550
-
- Physical Therapist
- Springfield, VA
- NPI 1043563257
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1553817600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1777939200000",
"number": "1962963058",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 37174",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212973174",
"telephone_number": "571-423-5699",
"fax_number": "571-423-5698"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8280 WILLOW OAKS CORPORATE DR STE 300",
"city": "FAIRFAX",
"state": "VA",
"postal_code": "220314526",
"telephone_number": "571-472-4300",
"fax_number": "571-665-6771"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MODARELLI",
"first_name": "RACHEL",
"middle_name": "ELIZABETH",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-03-29",
"last_updated": "2026-05-05",
"certification_date": "2026-05-05",
"status": "A"
},
"taxonomies": [
{
"code": "2080P0205X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Endocrinology",
"state": "VA",
"license": "0101285263",
"primary": true
},
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "VA",
"license": "0101285263",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Fairfax, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 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.