NPPES file of Aug 9, 2026

Christine Lynn Wasilewski, MD

Hematology & Oncology Physician · Portsmouth, NH

Christine Lynn Wasilewski, MD is a hematology & oncology physician with a practice address in Portsmouth, New Hampshire, and NPI 1376750562, issued on May 17, 2007. Check the license (New Hampshire 14111, as entered in NPPES) on the New Hampshire Board of Medicine; 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
1376750562
Name
Christine Lynn Wasilewski
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
14111 NH
1019284 MA
Self-reported in NPPES; status is on the state search
Practice location
155 Borthwick Ave Ste C, Portsmouth, NH 03801
Phone
(603) 828-0100
Enumerated
May 17, 2007
Record last updated
Apr 20, 2026
Fax
(603) 828-0111
Medicaid ID
3087016 NH
Medicare enrollment
Enrolled (PECOS I20090113000030); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2001
Telehealth
Offers telehealth (CMS)
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 155 Borthwick Ave Ste C

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

  1. Yoko Fukuda, M.D.Hematology & Oncology Physician1568622801
  2. Karen Kadish, NPNurse Practitioner1386633733
  3. Elizabeth Testa, LICSWClinical Social Worker1487288270
  4. Lauren Zanetti, PA-CPhysician Assistant1578956538

Verify Christine Lynn Wasilewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 14111
    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
Open the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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30% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,144 Medicare Part D claims for 221 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 14 claims were for opioids.

  1. Christine Wasilewski1,144
  2. Specialty average877

Most prescribed

  1. Letrozole159 claims
  2. Eliquis85 claims
  3. Anastrozole82 claims
  4. Prednisone50 claims
  5. Dexamethasone45 claims
  6. Ondansetron Hcl36 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: $76.66

4 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christine Wasilewski$76.66
  2. Specialty average$7,481.41

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

Bills Medicare through 2 group practices

  1. Maine Center For Cancer Medicine And Blood Disorders PAPortsmouth, NH
  2. Wentworth Douglass Physician CorporationDover, NH

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

Christine Lynn Wasilewski among 76 hematology & oncology physician records in New Hampshire

Christine Lynn Wasilewski, MD is one of 76 hematology & oncology physician records with a practice address in New Hampshire. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.

  • NPI issued2007 · 55% of these records are older, 36% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2001 · median 2001 among the 53 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in New Hampshire

There are 76 hematology & oncology physician records in New Hampshire.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Wilhelmina Cabalona, MDPortsmouth, NH 038011265691927
  2. Yoko Fukuda, M.D.Portsmouth, NH 038011568622801
  3. Elena Theodosiou, MDPortsmouth, NH 038011891730982
  4. Amy Bessnow, MDDover, NH 038201083766786
  5. Archana Bhargava, MDDover, NH 038201366457004
  6. Prashant Shankar, MDDover, NH 038201164453395
  7. Henry Sonneborn, MDDover, NH 038201376508812
  8. Sergey Devitskiy, M.D.Lebanon, NH 037561629129747

Common questions

What is Christine Lynn Wasilewski, MD's NPI number?

Christine Lynn Wasilewski, MD's National Provider Identifier (NPI) is 1376750562, issued on May 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christine Lynn Wasilewski, MD located?

The NPPES record lists a practice address at 155 Borthwick Ave Ste C, Portsmouth, NH, 03801. Phone: (603) 828-0100. Providers update this record themselves, so call before visiting.

How can I verify Christine Lynn Wasilewski, MD's license?

NPPES lists New Hampshire license number 14111, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christine Lynn Wasilewski, MD prescribe under Medicare Part D?

In 2024, Christine Lynn Wasilewski, MD had 1,144 Medicare Part D claims for 221 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.