MARK DOUGLAS HARWOOD (M.D.) – Clinical Cardiac Electrophysiology Physician, NPI 1356559975
Clinical Cardiac Electrophysiology Physician
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NPPES metrics only — not quality of care.
637 CARDIOVASCULAR DISEASE (CARDIOLOGY) in WA
Provider Addresses for MARK DOUGLAS HARWOOD (M.D.)
122 W. 7th Avenue
Ste. 450
Spokane, WA 992042352
Phone: (509) 455-8820
Fax: (509) 838-4978
Type: Location
PO BOX 31001-4114
PASADENA, CA 911100001
Phone: (866) 747-2455
Type: Mailing
62 W 7TH AVE STE 450
SPOKANE, WA 992042321
Phone: (509) 455-8820
Fax: (509) 838-4978
Type: Location
62 W 7th Ave Ste 450
Spokane, WA 992042321
Phone: (509) 455-8820
Fax: (509) 838-4978
Type: Location
331, Liberty Ridge Road, Cross Anchor Farms, Spartanburg County, South Carolina, 29335, United States
LIBERTY LAKE, WA 990190331
Phone: (866) 747-2455
Type: Mailing
122, West 7th Avenue, Cliff–Cannon, Spokane, Spokane County, Washington, 99204, United States
STE. 450
SPOKANE, WA 992042352
Phone: (509) 455-8820
Fax: (509) 838-4978
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 12 Open Payments records for all available years, with a total value of $1,659.
Total Amount is formed as General ($1,659) + Research ($0) + Ownership ($0) = $1,659.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Abbott Laboratories ($1,526).
Total Amount
$1,659
General + Research + Ownership
Payments
12
Total payment records
General Amount
$1,659
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $1,526 |
| Boston Scientific Corporation | $55 |
| CARDIVA MEDICAL, INC. | $52 |
| Medtronic, Inc. | $26 |
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: 2012-09-11
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 |
|---|---|---|---|---|
| I20120911000540 | I | Cardiac Electrophysiology | WA | 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 | 1,534 | 1,269 | $0 |
| 93296 | Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | 1,506 | 467 | $0 |
| 93294 | Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 1,132 | 355 | $0 |
| 93295 | Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 372 | 114 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 345 | 306 | $0 |
Insurance plans in this area (ZIP 99204)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIAC ELECTROPHYSIOLOGY | WA | 93284 | Evaluation, testing and programming adjustment of defibrillator with analysis, review and report | 17 | 13 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Advanced Heart Failure And Transplant Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | WA | |
| Nurse Practitioner | WA | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | WA | |
| Cardiovascular Disease (Cardiology) | WA | |
| - | WA | |
| Cardiovascular Disease (Cardiology) | WA | |
| Interventional Cardiology | WA | |
| Physician Assistant | MI | |
| Nurse Practitioner | CA | |
| - | WA |
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