NPPES file of Aug 9, 2026

Stephen Patrick Markowski, AGPCNP

Nurse Practitioner · Waltham, MA

Stephen Patrick Markowski, AGPCNP is a nurse practitioner with a practice address in Waltham, Massachusetts, and NPI 1366024523, issued on Apr 26, 2021. Check the license (Massachusetts RN2371065, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366024523
Name
Stephen Patrick Markowski
Credential
AGPCNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
RN2371065 MA
95015353 CA
Self-reported in NPPES; status is on the state search
Practice location
281 Winter St FL 2, Waltham, MA 02451
Phone
(781) 373-2940
Enumerated
Apr 26, 2021
Record last updated
May 12, 2026
Medicare enrollment
Enrolled (PECOS I20230222000783); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 281 Winter St FL 2

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carlos Bazoberry, M.D.Pain Medicine (Anesthesiology) Physician1013963271
  2. Steven Jay Nathin, M.D.Anesthesiology Physician1760440606

Verify Stephen Patrick Markowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2371065
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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4.5 times the Medicare Part D claims of the average nurse practitioner in 2024

4,944 Medicare Part D claims for 1,647 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Stephen Markowski4,944
  2. Specialty average1,109

Most prescribed

  1. Metoprolol Succinate625 claims
  2. Eliquis468 claims
  3. Atorvastatin Calcium445 claims
  4. Amlodipine Besylate296 claims
  5. Losartan Potassium240 claims
  6. Lisinopril217 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $91.01

4 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Markowski$91.01
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Heart Center OF Metrowest, Inc.Framingham, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

25 nurse practitioner records list a practice address in Waltham

They are 25 of the 2,111 NPPES records with a practice address in Waltham, and 3,480 nurse practitioner records in Massachusetts.

Other nurse practitioner records in Massachusetts

  1. Paula Abate, NPWorcester, MA1336265909
  2. Carolyn Abbanat Villafane, NPBoston, MA1598810269
  3. Lisa Abbondanza, CNPFranklin, MA1770892630
  4. Elizabeth Abbruzzese, NPWorcester, MA1326645300
  5. Alberta Abbuah, PMHNPFramingham, MA1437873411
  6. Fatima AbdallaMelrose, MA1326407529
  7. Israh AbdeljaberWorcester, MA1912629528
  8. Erika AbeidFairhaven, MA1831084839
  9. Nina AbelowitzConcord, MA1528201704
  10. Esayas Abraham, NPChelsea, MA1851275895

Common questions

What is Stephen Patrick Markowski, AGPCNP's NPI number?

Stephen Patrick Markowski, AGPCNP's National Provider Identifier (NPI) is 1366024523, issued on Apr 26, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Patrick Markowski, AGPCNP located?

The NPPES record lists a practice address at 281 Winter St FL 2, Waltham, MA, 02451. Phone: (781) 373-2940. Providers update this record themselves, so call before visiting.

How can I verify Stephen Patrick Markowski, AGPCNP's license?

NPPES lists Massachusetts license number RN2371065, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Stephen Patrick Markowski, AGPCNP prescribe under Medicare Part D?

In 2024, Stephen Patrick Markowski, AGPCNP had 4,944 Medicare Part D claims for 1,647 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.