ZACHARY PARNELL GIESEN (DO) – Cardiovascular Disease Physician, NPI 1083077408
Cardiovascular Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
231 CARDIOVASCULAR DISEASE (CARDIOLOGY) in NH
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Provider Addresses for ZACHARY PARNELL GIESEN (DO)
3875 RIVERBANKS RD
GRANTS PASS, OR 975279648
Phone:
Type: Mailing
Dartmouth-Hitchcock Medical Center, 1, Medical Center Drive, Lebanon, Grafton County, New Hampshire, 03756, United States
DHMC DEPARTMENT OF INTERNAL MEDICINE
LEBANON, NH 037561000
Phone: (603) 650-5000
Type: Location
520 MEDICAL CENTER DR STE 200
MEDFORD, OR 975044314
Phone: (541) 930-7222
Fax: (541) 930-7220
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: 2022-05-13
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 |
|---|---|---|---|---|
| I20220513000454 | I | Cardiovascular Disease (Cardiology) | OR | 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 |
|---|---|---|---|---|
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 714 | 596 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 491 | 488 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 185 | 157 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 159 | 116 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 106 | 106 | $0 |
Insurance plans in this area (ZIP 97527)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| - | OR | |
| Nurse Practitioner | OR | |
| Interventional Cardiology, Internal Medicine | MA | |
| Cardiac Electrophysiology | OR | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology) | OR | |
| Internal Medicine, Interventional Cardiology | OR | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology | OR | |
| Cardiovascular Disease (Cardiology) | OR | |
| Nurse Practitioner | OR |
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