Individual provider Active NPI

Caitlin Ellis, PA-C

Physician Assistant
Centennial, CO

National Provider Identifier

1396161139

Registry record updated Jul 30, 2026

On this page

Key facts
NPPES NPI Registry
Medicare participation
National Provider Directory
Organizations & group practices6
NPI Registry JSON
Other providers in Centennial, CO
Sources for this page

Key facts

NPPES NPI Registry

Primary specialty: Physician AssistantTaxonomy code 363A00000X
License: PA.0003937 Issued in CO
Practice address: 9110 E Nichols Ave Ste 150
Centennial, CO 80112-5093
Phone: (888) 538-4185
NPI assigned: Mar 17, 2014
Sex: Female
Sole proprietor: Yes

NPPES NPI Registry

Updated by the provider on Jul 30, 2026

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
Physician Assistant	363A00000X	PA.0003937	CO	Primary

Addresses

Primary practice location

9110 E Nichols Ave Ste 150
Centennial, CO 80112-5093

Mailing address

6400 S Fiddlers Green Cir Ste 300
Greenwood Village, CO 80111-4955
Phone (888) 538-4185

Other practice location 1

1201 S Parker Rd Ste 101
Denver, CO 80231-2154
Phone (888) 538-4185

Other identifiers 17

Identifier	Type	State	Issuer
14921	Other	MN	STATE LICENSE NUMBER
PA3198	Other	NV	STATE LICENSE NUMBER
PA70041341	Other	WA	STATE LICENSE NUMBER
085.011563	Other	IL	STATE LICENSE NUMBER
50.010423RX	Other	OH	STATE LICENSE NUMBER
7978-23	Other	WI	STATE LICENSE NUMBER
9120286	Other	FL	STATE LICENSE NUMBER
0110011167	Other	VA	STATE LICENSE NUMBER
034302	Other	NY	STATE LICENSE NUMBER
10004412A	Other	IN	STATE LICENSE NUMBER
PA0003937	Other	CO	STATE LICENSE NUMBER
25MP00962100	Other	NJ	STATE LICENSE NUMBER
PA224712	Other	OR	STATE LICENSE NUMBER
PA19463	Other	TX	STATE LICENSE NUMBER
10432	Other	AZ	STATE LICENSE NUMBER
6349	Other	TN	STATE LICENSE NUMBER
64522	Other	CA	STATE LICENSE NUMBER

Medicare participation

Medicare enrollment files

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

Part B services: No
Medical equipment: Yes
Home health: No
Power mobility devices: Yes
Hospice: No

Green means eligible to order or refer.

National Provider Directory

Medicare enrollment (NPD): Enrolled
Credentials: Physician Assistant

Practice roles

Organization	Specialty	Status	New patients
Posterity Men'S Health, P.C.	Urology	CurrentSince Mar 12, 2024	Accepting new patients
Peach State Medical Practice, PC		Past	Accepting new patients
Peach State Medical Practice, PC		Past	Accepting new patients
Fahimeh Sasan,D.O., P.C		Past	Accepting new patients
Major Hospital		Past	Accepting new patients
HCA Healthone LLC		Past	Accepting new patients

Locations

9110 E Nichols Ave
Ste 150
Centennial, CO 80112

9100 E Panorama Dr
Ste 250
Englewood, CO 80112

6400 S Fiddlers Green Cir
Ste 300
Greenwood Village, CO 80111
Phone (720) 443-2607

Interoperability endpoints

Direct secure messaging: caitlin.ellis.1@29754.direct.athenahealth.com

Organizations & group practices 6

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.

Posterity Men'S Health, P.C.
- Urology Physician
- Denver, CO
- NPI 1093452161
NPD
HCA Healthone LLC
- General Acute Care Hospital
- Englewood, CO
- NPI 1396790200
NPD (past)
Peach State Medical Practice, PC
- Reproductive Endocrinology Physician
- Denver, CO
- NPI 1275117269
NPD (past)
Fahimeh Sasan,D.O., P.C
- Reproductive Endocrinology Physician
- San Francisco, CA
- NPI 1891355863
NPD (past)
Major Hospital
- General Acute Care Hospital
- Shelbyville, IN
- NPI 1174555692
NPD (past)
Peach State Medical Practice, PC
- Reproductive Endocrinology Physician
- North Bethesda, MD
- NPI 1962116806
NPD (past)

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1395014400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785369600000",
    "number": "1396161139",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6400 S FIDDLERS GREEN CIR STE 300",
            "city": "GREENWOOD VILLAGE",
            "state": "CO",
            "postal_code": "801114955",
            "telephone_number": "888-538-4185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9110 E NICHOLS AVE STE 150",
            "city": "CENTENNIAL",
            "state": "CO",
            "postal_code": "801125093",
            "telephone_number": "888-538-4185"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1201 S Parker Rd Ste 101",
            "address_purpose": "LOCATION",
            "city": "Denver",
            "state": "CO",
            "postal_code": "802312154",
            "country_code": "US",
            "telephone_number": "888-538-4185",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ELLIS",
        "first_name": "CAITLIN",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-03-17",
        "last_updated": "2026-07-30",
        "certification_date": "2026-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CO",
            "license": "PA.0003937",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "14921",
            "state": "MN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "PA3198",
            "state": "NV"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "PA70041341",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "085.011563",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "50.010423RX",
            "state": "OH"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "7978-23",
            "state": "WI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "9120286",
            "state": "FL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "0110011167",
            "state": "VA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "034302",
            "state": "NY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "10004412A",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "PA0003937",
            "state": "CO"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "25MP00962100",
            "state": "NJ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "PA224712",
            "state": "OR"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "PA19463",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "10432",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "6349",
            "state": "TN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE NUMBER",
            "identifier": "64522",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Centennial, CO

Sources for this page

NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 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.
National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.