Active NPI
Ariel Fontaine McDowell
- Physician Assistant
- Boulder, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- PA.0006742
- Practice address
- 4743 Arapahoe Ave Ste 104
Boulder, CO 80303-1123 - Phone
- (303) 444-9000
- NPI assigned
- Jun 22, 2020
- Sex
- Female
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Physician Assistant | 363A00000X | PA.0006742 | CO | Primary |
Addresses
Primary practice location
4743 Arapahoe Ave Ste 104
Boulder, CO 80303-1123
Mailing address
10200 Grand Central Ave Ste 220
Owings Mills, MD 21117-4366
Phone (866) 953-3111
Other practice location 1
8600 Riverdale Ct
Waxhaw, NC 28173-7576
Phone (704) 771-2116
Other names 1
- Ariel F Griffin
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
300 Exempla Circle
Suite 250
Lafayette, CO 80026-3392
Phone (720) 536-3011
32135 Castle CT
Suite 101
Evergreen, CO 80439-8006
Phone (303) 985-2550
4743 Arapahoe Ave
Suite 104
Boulder, CO 80303-1123
Phone (303) 444-9000
500 W 144TH Ave
BLDG 2 Suite 220
Westminster, CO 80023-9328
Phone (720) 227-0977
Hospital & facility affiliations
- Boulder Community Health
- Good Samaritan Medical Center LLC
- Centura Health-St Anthony North Health Campus
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Advanced Urology, PLLC | Current | Accepting new patients | |
| Advanced Urology, PLLC | Current | Accepting new patients | |
| Foothills Urology, PC | Current | Accepting new patients |
Locations
4743 Arapahoe Ave
Ste 104
Boulder, CO 80303
Phone (303) 443-4200
4743 Arapahoe Ave
Boulder, CO 80303
Phone (303) 444-9000
2352 Meadows Blvd
Castle Rock, CO 80109
Phone (303) 755-0120
4700 Hale Pkwy
Denver, CO 80220
Phone (303) 321-0302
32135 Castle Ct
Ste 101
Evergreen, CO 80439
Phone (303) 679-8500
5275 Dtc Pkwy
Greenwood Village, CO 80111
Phone (303) 570-2760
300 Exempla Cir
Ste 250
Lafayette, CO 80026
Phone (303) 443-8900
120 Old Laramie Trl
Lafayette, CO 80026
Phone (303) 444-0840
10535 Park Meadows Blvd
Ste 102
Lone Tree, CO 80124
Phone (303) 695-1211
10535 Park Meadows Blvd
Lone Tree, CO 80124
Phone (303) 662-8250
2030 Mountain View Ave
Ste 420
Longmont, CO 80501
Phone (303) 776-9400
3 Superior Dr
Superior, CO 80027
Phone (303) 415-5255
500 W 144th Ave
Ste 220
Westminster, CO 80023
Phone (720) 227-0977
10200 Grand Central Ave
Ste 220
Owings Mills, MD 21117
25 Crossroads Dr
Ste 306
Owings Mills, MD 21117
Phone (443) 231-1681
Interoperability endpoints
- arielgriffin@fu.allscriptsdirect.net
Organizations & group practices 3
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.
-
- Urology Physician
- Lone Tree, CO
- NPI 1962501551
-
- Urology Physician
- Denver, CO
- NPI 1497305072
-
- Urology Physician
- Golden, CO
- NPI 1780617795
Hospital & facility affiliations 41
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Sleep Disorder Diagnostic Clinic/Center
- Boulder, CO
- NPI 1093357907
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1592784000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786406400000",
"number": "1801412267",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10200 GRAND CENTRAL AVE STE 220",
"city": "OWINGS MILLS",
"state": "MD",
"postal_code": "211174366",
"telephone_number": "866-953-3111",
"fax_number": "443-471-8540"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4743 ARAPAHOE AVE STE 104",
"city": "BOULDER",
"state": "CO",
"postal_code": "803031123",
"telephone_number": "303-444-9000"
}
],
"practiceLocations": [
{
"address_1": "8600 Riverdale Ct",
"address_purpose": "LOCATION",
"city": "Waxhaw",
"state": "NC",
"postal_code": "281737576",
"country_code": "US",
"telephone_number": "704-771-2116",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MCDOWELL",
"first_name": "ARIEL",
"middle_name": "FONTAINE",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2020-06-22",
"last_updated": "2026-08-11",
"certification_date": "2026-08-11",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "CO",
"license": "PA.0006742",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "ARIEL",
"last_name": "GRIFFIN",
"middle_name": "F",
"credential": "PA",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Boulder, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 11, 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.