MR. STEPHEN PATRICK MARKOWSKI AGPCNP
NPI 1366024523
Nurse Practitioner in Waltham, MA

Active since April 26, 2021PECOS EnrolledAccepts Medicare Assignment
281 WINTER ST FL 2, WALTHAM, MA 02451(781) 373-2940 Get Directions Write a Review

NPPES record last updated: May 12, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: May 12, 2026, Sep 5, 2025, May 25, 2023 and 3 more (6 updates tracked since 2021).

About Mr. Stephen Patrick Markowski Agpcnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. STEPHEN PATRICK MARKOWSKI AGPCNP (NPI 1366024523) is an individual nurse practitioner in Waltham, Massachusetts, licensed in Massachusetts (RN2371065) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1366024523
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMR. STEPHEN PATRICK MARKOWSKICredential: AGPCNP
Location Address281 WINTER ST FL 2Waltham, MA 02451-8740
Mailing Address281 Winter St Fl 2Waltham, MA 02451-8740 · (781) 373-2940
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateApril 26, 2021
Last NPPES UpdateMay 12, 20266 updates tracked since enumeration
NPPES CertifiedMay 12, 2026
NPI 1366024523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in MA · RN2371065
Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedRegistered NurseTaxonomy 163W00000X · License RN2371065 (MA)
Also ListedNurse Practitioner · Primary CareTaxonomy 363LP2300X · License 95015353 (CA)
281 WINTER ST FL 2, Waltham, MA 02451

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mr. Stephen Patrick Markowski Agpcnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7810398005
PECOS Enrollment IDI20230222000783
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
333 services285 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
306 services262 patients
Anticoagulant management of patient taking warfarin 93793
Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.
77 services54 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
60 services56 patients
Blood test, clotting time 85610
A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.
40 services31 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220090
Location14 Prospect StreetMilford, MA 01757 · Worcester County
Emergency services Birthing friendly

Metrowest Medical Center

Acute Care Hospitals · Framingham, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220175
Location115 Lincoln StreetFramingham, MA 01701 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02451 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Anesthesiology
281 WINTER ST FL 2
WALTHAM, MA 02451
Anesthesiology
281 WINTER ST FL 2
WALTHAM, MA 02451
Anesthesiology (Pain Medicine)
281 WINTER ST FL 2
WALTHAM, MA 02451
Clinical Medical Laboratory
281 WINTER ST FL 2
WALTHAM, MA 02451
Pain Medicine (Pain Medicine)
281 WINTER ST FL 2
WALTHAM, MA 02451
Pain Medicine (Pain Medicine)
281 WINTER ST FL 2
WALTHAM, MA 02451

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366024523, enumerated as an "individual" on April 26, 2021.

The provider is located at 281 WINTER ST FL 2 WALTHAM, MA 02451 and the phone number is (781) 373-2940.

Nurse Practitioner with taxonomy code 363L00000X.

Stephen Markowski is affiliated with: MILFORD REGIONAL MEDICAL CENTER and METROWEST MEDICAL CENTER.