KATHARINE ELIZABETH GELLISH (NP-C) – Primary Care Nurse Practitioner, NPI 1083373633
Primary Care Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,201 NURSE PRACTITIONER in CO
Provider Addresses for KATHARINE ELIZABETH GELLISH (NP-C)
8175 SHERIDAN BLVD
UNIT N
ARVADA, CO 800031928
Phone: (248) 648-9386
Type: Mailing
8246 W BOWLES AVE UNIT T
LITTLETON, CO 801233084
Phone: (303) 800-0880
Fax: (415) 252-7176
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2022-03-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20220301000091 | I | Nurse Practitioner | CO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 227 | 148 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 121 | 105 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 48 | 48 | $0 |
| G0008 | Administration of influenza virus vaccine | 17 | 17 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 13 | 13 | $0 |
Insurance plans in this area (ZIP 80003)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CO | |
| Internal Medicine | CO | |
| - | CO | |
| Nurse Practitioner | CO | |
| - | GA | |
| - | CO | |
| Nurse Practitioner | NC | |
| - | CO | |
| Family Practice | CO | |
| Nurse Practitioner | CO |
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