Active NPI
Arun Nag Santhosh Mallapareddi
- Sleep Medicine (Family Medicine) Physician
- Ashburn, VA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Sleep Medicine (Family Medicine) Physician
- License
- 0101283107
- Practice address
- 44335 Premier PLZ Ste 230
Ashburn, VA 20147-5052 - Phone
- (571) 577-6806
- NPI assigned
- Apr 11, 2016
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Sleep Medicine (Family Medicine) Physician | 207QS1201X | 0101283107 | VA | Primary |
| Family Medicine Physician | 207Q00000X | 0101283107 | VA | |
| Family Medicine Physician | 207Q00000X | 35.139042 | OH |
Addresses
Primary practice location
44335 Premier PLZ Ste 230
Ashburn, VA 20147-5052
Mailing address
44335 Premier PLZ Ste 230
Ashburn, VA 20147-5052
Phone (571) 577-6806
Other practice location 1
10100 Fairfax Blvd
Fairfax, VA 22030-2000
Phone (703) 679-1876
Other practice location 2
200 N Glebe Rd Ste 316
Arlington, VA 22203-3755
Phone (703) 729-3420
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | admin@sigmahealthdpc.com | ||
| Direct Messaging Address | VAExchange@patientfirstclinics.com | Health Information Exchange (HIE) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OH, DC, VA, MD
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 4
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Wayne State University School of Medicine, 2015
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
- Comprehensive Sleep Care Center Inc
Practice addresses (Care Compare)
10100 Fairfax Blvd
Fairfax, VA 22030-2000
Phone (703) 679-1876
19441 Golf Vista PLZ
Suite 230
Leesburg, VA 20176-8271
Phone (703) 729-3420
200 N Glebe Rd
Suite 316
Arlington, VA 22203-3755
Phone (703) 729-3420
3687 Fettler Park Dr
Dumfries, VA 22025-2049
Phone (703) 729-3420
4080 Lafayette Ctr Dr
Suite 170C
Chantilly, VA 20151-1248
Phone (703) 729-3420
4897 Prince William Pkwy
Suite 102
Woodbridge, VA 22192-5433
Phone (703) 729-3420
5901 Kingstowne Village Pkwy
Suite 101
Alexandria, VA 22315-5881
Phone (703) 729-3420
6000 Executive Blvd
Suite 604
North Bethesda, MD 20852-3830
Phone (703) 729-3420
605 Emancipation Hwy
2B
Fredericksburg, VA 22401-8403
Phone (703) 729-3420
621 Ridgely Ave
Suite 402
Annapolis, MD 21401-1099
Phone (703) 729-3420
8110 Midlothian Tpke
North Chesterfield, VA 23235-5116
Phone (804) 320-8160
9420 Forestwood LN
Suite 202
Manassas, VA 20110-4758
Phone (703) 729-3420
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Varam LLC | Family Medicine | Current | Accepting new patients |
| Comprehensive Sleep Care Center Inc | Current | Accepting new patients | |
| University Hospitals Medical Group Inc | Current | Accepting new patients | |
| Comprehensive Sleep Care Center Inc | Current | Accepting new patients | |
| Comprehensive Sleep Care Center Inc | Current | Accepting new patients | |
| Comprehensive Sleep Care Center, Inc. | Current | Accepting new patients | |
| Patient First Richmond Medical Group PLLC | Family Medicine | Current | Accepting new patients |
| Patient First Richmond Medical Group PLLC | Family Medicine | Current | Accepting new patients |
Locations
621 Ridgely Ave
Ste 402
Annapolis, MD 21401
6000 Executive Blvd
Ste 604
Rockville, MD 20852
8055 Mayfield Rd
Ste 105
Chesterland, OH 44026
Phone (440) 214-8024
11100 Euclid Ave
Cleveland Heights, OH 44106
158 W Main Rd
Ste 203
Conneaut, OH 44030
Phone (440) 285-2960
6311 Richmond Hwy
Alexandria, VA 22306
Phone (703) 647-6087
200 N Glebe Rd
Ste 316
Arlington, VA 22203
44335 Premier Plz
Ste 230
Ashburn, VA 20147
Phone (571) 498-0109
4080 Lafayette Center Dr
Ste 170C
Chantilly, VA 20151
10100 Fairfax Blvd
Fairfax, VA 22030
Phone (703) 679-1876
5000 Cox Rd
Glen Allen, VA 23060
Phone (804) 822-4355
601 Potomac Station Dr NE
Leesburg, VA 20176
Phone (703) 840-1396
19441 Golf Vista Plz
Ste 310
Leesburg, VA 20176
19441 Golf Vista Plz
Ste 230
Leesburg, VA 20176
Phone (703) 724-7474
9420 Forestwood Ln
Ste 202
Manassas, VA 20110
8110 Midlothian Tpke
North Chesterfield, VA 23235
Phone (804) 320-8160
4897 Prince William Pkwy
Ste 102
Woodbridge, VA 22192
Interoperability endpoints
- vaexchange@patientfirstclinics.com
- amallapareddi21146@ehrdirect.uhhospitals.org
Organizations & group practices 9
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.
-
- Family Medicine Physician
- Glen Allen, VA
- NPI 1689603748
DC
-
- Family Medicine Physician
- Ashburn, VA
- NPI 1538959788
-
- Sleep Medicine (Internal Medicine) Physician
- Lansdowne, VA
- NPI 1811149784
-
- Sleep Medicine (Internal Medicine) Physician
- North Bethesda, MD
- NPI 1780471631
DC
-
- Sleep Medicine (Internal Medicine) Physician
- Annapolis, MD
- NPI 1851279541
-
- Multi-Specialty Clinic/Center
- Cleveland, OH
- NPI 1669499414
-
- Urgent Care Clinic/Center
- Fairfax, VA
- NPI 1588018881
Family Medicine
-
- Sleep Medicine (Internal Medicine) Physician
- Germantown, MD
- NPI 1144017005
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1460332800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1771804800000",
"number": "1780048264",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "44335 PREMIER PLZ STE 230",
"city": "ASHBURN",
"state": "VA",
"postal_code": "201475052",
"telephone_number": "571-577-6806"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "44335 PREMIER PLZ STE 230",
"city": "ASHBURN",
"state": "VA",
"postal_code": "201475052",
"telephone_number": "571-577-6806"
}
],
"practiceLocations": [
{
"address_1": "10100 Fairfax Blvd",
"address_purpose": "LOCATION",
"city": "Fairfax",
"state": "VA",
"postal_code": "220302000",
"country_code": "US",
"telephone_number": "703-679-1876",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "200 N Glebe Rd Ste 316",
"address_purpose": "LOCATION",
"city": "Arlington",
"state": "VA",
"postal_code": "222033755",
"country_code": "US",
"telephone_number": "703-729-3420",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MALLAPAREDDI",
"first_name": "ARUN NAG SANTHOSH",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2016-04-11",
"last_updated": "2026-02-23",
"certification_date": "2026-02-23",
"status": "A"
},
"taxonomies": [
{
"code": "207QS1201X",
"taxonomy_group": "",
"desc": "Family Medicine, Sleep Medicine",
"state": "VA",
"license": "0101283107",
"primary": true
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "VA",
"license": "0101283107",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "OH",
"license": "35.139042",
"primary": false
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "admin@sigmahealthdpc.com",
"affiliation": "N",
"address_1": "44335 Premier Plz Ste 23044335",
"city": "Ashburn",
"state": "VA",
"country_code": "US",
"postal_code": "201475051",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "VAExchange@patientfirstclinics.com",
"affiliation": "N",
"endpointDescription": "email",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"address_1": "10100 Fairfax Blvd",
"city": "Fairfax",
"state": "VA",
"country_code": "US",
"postal_code": "220302000",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Ashburn, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 23, 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.