ANNE GIESEN (DO) – Geriatric Medicine (Family Medicine) Physician, NPI 1851408926
Geriatric Medicine (Family Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
92 GERIATRIC MEDICINE in CO
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Provider Addresses for ANNE GIESEN (DO)
350, Ponca Place, Boulder, Boulder County, Colorado, 80303, United States
SUITE 250
BOULDER, CO 803033828
Phone: (303) 938-1110
Fax: (303) 938-1145
Mailing address matches the actual address.
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: 2004-02-27
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 |
|---|---|---|---|---|
| I20040227000008 | I | Geriatric Medicine | 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 |
|---|---|---|---|---|
| 99439 | Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 178 | 33 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 146 | 53 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 125 | 33 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 56 | 56 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 44 | 34 | $0 |
Insurance plans in this area (ZIP 80303)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CO | |
| Nurse Practitioner | CO | |
| Nurse Practitioner | CO | |
| - | CO | |
| Nurse Practitioner | CO | |
| - | CO | |
| Physician Assistant | CO | |
| Nurse Practitioner | CO | |
| Physician Assistant | CO | |
| - | CO |
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