Active NPI
Gary Wayne Seifert, APRN NP-C
- Family Nurse Practitioner
- Denver, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- APN1001433NP
- Practice address
- 11590 Black Forest Rd
Ste 10
Denver, CO 80203-1859 - Phone
- (719) 629-7988
- Fax
- (719) 212-8795
- NPI assigned
- Jul 2, 2021
- Last updated
- Jul 10, 2026
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 11
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Nurse Practitioner | 363LF0000X | APRN11030808 | FL | |
| Family Nurse Practitioner | 363LF0000X | 1046231 | TX | |
| Family Nurse Practitioner | 363LF0000X | F359423-01 | NY | |
| Family Nurse Practitioner | 363LF0000X | 90028 | NM | |
| Family Nurse Practitioner | 363LF0000X | 243741 | AK | |
| Family Nurse Practitioner | 363LF0000X | SP032410 | PA | |
| Family Nurse Practitioner | 363LF0000X | APN1001433NP | CO | Primary |
| Family Nurse Practitioner | 363LF0000X | 14282604-4405 | UT | |
| Family Nurse Practitioner | 363LF0000X | 0024197768 | VA | |
| Family Nurse Practitioner | 363LF0000X | 228413 | OK | |
| Family Nurse Practitioner | 363LF0000X | APTP.N3.70145018 | WA |
Addresses
Primary practice location
11590 Black Forest Rd
Ste 10
Denver, CO 80203-1859
Mailing address
11590 Black Forest Rd Ste 10
Colorado Springs, CO 80908-6000
Phone (719) 629-7988
Other practice location 1
5900 Balcones Dr Ste 100
Austin, TX 78731-4298
Phone (719) 629-7988
Other practice location 2
7533 S Center View Ct Ste 5975
West Jordan, UT 84084-5526
Phone (719) 629-7988
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: No
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
11600 W 2ND PL
Lakewood, CO 80228-1527
Phone (720) 321-4161
2222 N Nevada Ave
Colorado Springs, CO 80907-6794
Phone (719) 776-5333
6001 E Woodman Rd
Colorado Springs, CO 80923-2601
Phone (719) 571-1476
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| APN1001433NP | CO | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Usacs Community Emergency Services of Colorado, Inc. | Current | Accepting new patients | |
| Usacs Community Emergency Services of Colorado, Inc. | Current | Accepting new patients | |
| Northeast Texas Emergency Physicians, PLLC | Current | Accepting new patients | |
| Usacs Observation Medicine Services of Colorado Inc. | Current | Accepting new patients | |
| Usacs Observation Medicine Services of Colorado Inc. | Current | Accepting new patients | |
| Usacs Observation Medicine Services of Colorado Inc. | Current | Accepting new patients | |
| Usacs of Colorado Inc | Current | Accepting new patients | |
| Usacs of Colorado, Inc | Current | Accepting new patients | |
| Usacs Community Emergency Services of Colorado, Inc. | Current | Accepting new patients | |
| Texarkana Emergency Physicians PLLC | Current | Accepting new patients | |
| Usacs of Colorado Inc | Current | Accepting new patients | |
| Onhealth, PLLC | Family | Current | Accepting new patients |
Locations
11590 Black Forest Rd
Ste 10
Colorado Springs, CO 80908
Phone (719) 629-7988
7000 E Hampden Ave
Denver, CO 80224
Phone (330) 925-4199
11600 W 2nd Pl
Lakewood, CO 80228
Phone (720) 321-1010
7700 S Broadway
Littleton, CO 80122
Phone (303) 269-4786
1007 S William St
Atlanta, TX 75551
Phone (903) 614-2000
700 E Marshall Ave
Longview, TX 75601
Phone (903) 236-2000
115 Airport Rd
Sulphur Springs, TX 75482
Phone (903) 439-4052
1000 Pine St
Texarkana, TX 75501
Phone (903) 798-7365
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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Emergency Medicine Physician
- Lakewood, CO
- NPI 1518491232
-
- Emergency Medicine Physician
- Arvada, CO
- NPI 1053824979
-
- Emergency Medicine Physician
- Littleton, CO
- NPI 1760415871
-
- Emergency Medicine Physician
- Longview, TX
- NPI 1114607611
-
- Emergency Medicine Physician
- Texarkana, TX
- NPI 1871813345
-
- Family Nurse Practitioner
- Colorado Springs, CO
- NPI 1942066881
-
- Emergency Medicine Physician
- Breckenridge, CO
- NPI 1003549460
-
- Emergency Medicine Physician
- Denver, CO
- NPI 1811522972
-
- Emergency Medicine Physician
- Colorado Springs, CO
- NPI 1124668884
-
- Critical Care Medicine (Internal Medicine) Physician
- Durango, CO
- NPI 1659220663
-
- Emergency Medicine Physician
- Lakewood, CO
- NPI 1720614217
-
- Emergency Medicine Physician
- Pueblo, CO
- NPI 1932735321
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Penrose Cardiac & Pulmonary Rehab Center
- General Acute Care Hospital
- Colorado Springs, CO
- NPI 1801436415
-
dba Penrose Hospital
- General Acute Care Hospital
- Colorado Springs, CO
- NPI 1932112125
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1625184000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783641600000",
"number": "1871164798",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "11590 BLACK FOREST RD STE 10",
"city": "COLORADO SPRINGS",
"state": "CO",
"postal_code": "809086000",
"telephone_number": "719-629-7988",
"fax_number": "719-212-8795"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11590 BLACK FOREST RD",
"address_2": "STE 10",
"city": "DENVER",
"state": "CO",
"postal_code": "802031859",
"telephone_number": "719-629-7988",
"fax_number": "719-212-8795"
}
],
"practiceLocations": [
{
"address_1": "5900 Balcones Dr Ste 100",
"address_purpose": "LOCATION",
"city": "Austin",
"state": "TX",
"postal_code": "787314298",
"country_code": "US",
"telephone_number": "719-629-7988",
"fax_number": "719-212-8795",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "7533 S Center View Ct Ste 5975",
"address_purpose": "LOCATION",
"city": "West Jordan",
"state": "UT",
"postal_code": "840845526",
"country_code": "US",
"telephone_number": "719-629-7988",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SEIFERT",
"first_name": "GARY",
"middle_name": "WAYNE",
"credential": "APRN NP-C",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2021-07-02",
"last_updated": "2026-07-10",
"certification_date": "2026-07-10",
"status": "A"
},
"taxonomies": [
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "FL",
"license": "APRN11030808",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "TX",
"license": "1046231",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "NY",
"license": "F359423-01",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "NM",
"license": "90028",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "AK",
"license": "243741",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "PA",
"license": "SP032410",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "CO",
"license": "APN1001433NP",
"primary": true
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "UT",
"license": "14282604-4405",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "VA",
"license": "0024197768",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "OK",
"license": "228413",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "WA",
"license": "APTP.N3.70145018",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Denver, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 10, 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.