NPPES file of Aug 9, 2026

Jonathan N. Swerdloff, MD

Medical Oncology Physician · Nampa, ID

Jonathan N. Swerdloff, MD is a medical oncology physician with a practice address in Nampa, Idaho, and NPI 1588696538, issued on Jul 7, 2006. Check the license (Idaho M8879, as entered in NPPES) on the Idaho 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
1588696538
Name
Jonathan N. Swerdloff
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
M8879 ID
Self-reported in NPPES; status is on the state search
Practice location
308 E Hawaii Ave, Nampa, ID 83686
Phone
(208) 467-6700
Enumerated
Jul 7, 2006
Record last updated
Sep 18, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100804000196); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1997
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 308 E Hawaii Ave

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

  1. Larry Fiorentino, MDHematology & Oncology Physician1528086402
  2. Larisa Kogan, NPNurse Practitioner1740680149
  3. Bruce Wehler, LCSWClinical Social Worker1982023693

Verify Jonathan N. Swerdloff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIdaho Board of Medicine
    Search for license M8879
    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 Idaho 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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3.0 times the Medicare Part D claims of the average medical oncology physician in 2024

2,139 Medicare Part D claims for 375 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 176 claims were for opioids.

  1. Jonathan Swerdloff2,139
  2. Specialty average703

Most prescribed

  1. Anastrozole145 claims
  2. Ondansetron Odt132 claims
  3. Acyclovir120 claims
  4. Tamoxifen Citrate115 claims
  5. Prochlorperazine Maleate108 claims
  6. Hydrocodone-Acetaminophen87 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: $90.25

2 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Swerdloff$90
  2. Specialty average$11,773

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. St Lukes Clinic-Treasure Valley LLCBoise, ID

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

Jonathan N. Swerdloff among 22 medical oncology physician records in Idaho

Jonathan N. Swerdloff, MD is one of 22 medical oncology physician records with a practice address in Idaho. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 45% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1997 · median 2003 among the 18 with a school on file
  • Record last updated2012 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Idaho

There are 22 medical oncology physician records in Idaho.

The 8 medical oncology physician records with the nearest ZIP codes

  1. William Newberry, M.D.Nampa, ID 836871629148762
  2. Cannon Milani, MDBoise, ID 837041811212491
  3. Patricia Avancena, MD-PHDBoise, ID 837061235691478
  4. Shaalan Beg, MDBoise, ID 837061508077298
  5. Jashmin Patel, M.D.Boise, ID 837121811121759
  6. Theodore Walters, MDBoise, ID 837121821016718
  7. Norman Zuckerman, MDBoise, ID 837121568484053
  8. Silvana Bucur, MDMeridian, ID 836421326140039

Common questions

What is Jonathan N. Swerdloff, MD's NPI number?

Jonathan N. Swerdloff, MD's National Provider Identifier (NPI) is 1588696538, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan N. Swerdloff, MD located?

The NPPES record lists a practice address at 308 E Hawaii Ave, Nampa, ID, 83686. Phone: (208) 467-6700. Providers update this record themselves, so call before visiting.

How can I verify Jonathan N. Swerdloff, MD's license?

NPPES lists Idaho license number M8879, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jonathan N. Swerdloff, MD prescribe under Medicare Part D?

In 2024, Jonathan N. Swerdloff, MD had 2,139 Medicare Part D claims for 375 beneficiaries; the average among medical oncology physician prescribers was 703. 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.