MR. STEPHEN PATRICK MARKOWSKI (AGPCNP) – Primary Care Nurse Practitioner, NPI 1366024523
Primary Care Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,971 NURSE PRACTITIONER in MA
Provider Addresses for MR. STEPHEN PATRICK MARKOWSKI (AGPCNP)
281 WINTER ST FL 2
WALTHAM, MA 024518740
Phone: (781) 373-2940
Type: Mailing
255 N WHITE RD STE 200B
SAN JOSE, CA 951271966
Phone: (888) 357-4188
Fax: (562) 622-3058
Type: Mailing
4855 ATHERTON AVE
SAN JOSE, CA 951301026
Phone: (408) 963-2400
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $109.
Total Amount is formed as General ($109) + Research ($0) + Ownership ($0) = $109.
Last reported payment date: 2024-10-07 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($36).
Total Amount
$109
General + Research + Ownership
Payments
5
Total payment records
General Amount
$109
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-07
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2023-02-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20210624003811 | I | Nurse Practitioner | CA | TBD |
| I20230222000783 | I | Nurse Practitioner | MA | 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 |
|---|---|---|---|---|
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 230 | 188 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 209 | 172 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 22 | 22 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 02451)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Interventional Cardiology | DC | |
| Cardiovascular Disease (Cardiology) | MA | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | MA | |
| Nurse Practitioner | MA | |
| - | MA | |
| - | MA | |
| Nurse Practitioner | MA | |
| Cardiovascular Disease (Cardiology), Cardiac Electrophysiology | MA | |
| Cardiovascular Disease (Cardiology), Internal Medicine | MA | |
| - | MA |
Reviews
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