Active NPI
Tracy Lyon, MD
- Obstetrics & Gynecology Physician
- Littleton, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- CDR.2300
- Practice address
- 7700 S Broadway
Littleton, CO 80122-2602 - Phone
- (303) 730-5830
- Fax
- (303) 734-3933
- NPI assigned
- Mar 12, 2014
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Obstetrics & Gynecology Physician | 207V00000X | CDR.2300 | CO | Primary |
Addresses
Primary practice location
7700 S Broadway
Littleton, CO 80122-2602
Mailing address
7700 S Broadway
Littleton, CO 80122-2602
Phone (303) 730-5830
Other practice location 1
315 N San Saba Ste 1210
San Antonio, TX 78207-3123
Phone (210) 704-4172
Other practice location 2
1055 N Curtis Rd
Boise, ID 83706-1309
Phone (208) 367-4555
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 336954803 | Medicaid | TX |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX, CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Obstetrics/Gynecology
- Education
- Baylor College of Medicine, 1996
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2535 S Downing St
Denver, CO 80210-5850
Phone (303) 778-5797
7700 S Broadway
Littleton, CO 80122-2602
Phone (303) 730-8900
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| CDR.2300 | CO | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Questcare Obstetrics Colorado LLC | Obstetrics & Gynecology | Current | Accepting new patients |
| Portercare Adventist Health System | Current | Accepting new patients | |
| Questcare Obstetrics Colorado LLC | Obstetrics & Gynecology | Current | Accepting new patients |
| Christus Trinity Clinic Texas | Current | Accepting new patients | |
| Portercare Adventist Health System | Current | Accepting new patients | |
| Questcare Obstetrics Colorado LLC | Current | Accepting new patients | |
| Christus Trinity Clinic Texas | Obstetrics & Gynecology | Current | Accepting new patients |
| Portercare Adventist Health System | Current | Accepting new patients | |
| BHS Specialty Network Inc | Past | Accepting new patients | |
| Wellmed Medical Group, PA | Past | Accepting new patients |
Locations
2350 Meadows Blvd
Castle Rock, CO 80109
Phone (720) 248-3413
6001 E Woodmen Rd
Colorado Springs, CO 80923
Phone (719) 571-1000
4567 E 9th Ave
Denver, CO 80220
Phone (303) 302-2121
7700 S Broadway
Littleton, CO 80122
Phone (303) 269-4786
9395 Crown Crest Blvd
Parker, CO 80138
Phone (303) 269-4000
315 N San Saba
Ste 960
San Antonio, TX 78207
Phone (210) 223-9888
315 N San Saba
Ste 1210
San Antonio, TX 78207
Phone (210) 354-0877
11345 Alamo Ranch Pkwy
Ste 203
San Antonio, TX 78253
Phone (210) 705-5151
630 S Fleishel Ave
Tyler, TX 75701
Phone (903) 510-8888
Interoperability endpoints
- tlyon3841619@adventhealth.direct-ci.com
Organizations & group practices 10
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.
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Obstetrics & Gynecology
-
- Family Medicine Physician
- Tyler, TX
- NPI 1285684225
Obstetrics & Gynecology
-
- Hematology & Oncology Physician
- Parker, CO
- NPI 1770192387
-
- Urology Physician
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- NPI 1942165626
-
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- NPI 1164029229
-
- Hospitalist Physician
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- NPI 1437821204
-
- Rural Health Clinic/Center
- Winnsboro, TX
- NPI 1801673165
-
- Cardiovascular Disease Physician
- San Antonio, TX
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-
- Internal Medicine Physician
- San Antonio, TX
- NPI 1437156486
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1394582400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1762214400000",
"number": "1548686751",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "7700 S BROADWAY",
"city": "LITTLETON",
"state": "CO",
"postal_code": "801222602",
"telephone_number": "303-730-5830",
"fax_number": "303-734-3933"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "7700 S BROADWAY",
"city": "LITTLETON",
"state": "CO",
"postal_code": "801222602",
"telephone_number": "303-730-5830",
"fax_number": "303-734-3933"
}
],
"practiceLocations": [
{
"address_1": "315 N San Saba Ste 1210",
"address_purpose": "LOCATION",
"city": "San Antonio",
"state": "TX",
"postal_code": "782073123",
"country_code": "US",
"telephone_number": "210-704-4172",
"fax_number": "210-704-4723",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1055 N Curtis Rd",
"address_purpose": "LOCATION",
"city": "Boise",
"state": "ID",
"postal_code": "837061309",
"country_code": "US",
"telephone_number": "208-367-4555",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LYON",
"first_name": "TRACY",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2014-03-12",
"last_updated": "2025-11-04",
"certification_date": "2025-11-04",
"status": "A"
},
"taxonomies": [
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "CO",
"license": "CDR.2300",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "336954803",
"state": "TX"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Littleton, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 4, 2025; 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.