NPPES file of Aug 9, 2026

Derek Steven Serna, M.D.

Hematology & Oncology Physician · Waukesha, WI

Derek Steven Serna, M.D. is a hematology & oncology physician with a practice address in Waukesha, Wisconsin, and NPI 1205044773, issued on May 18, 2007. Check the license (Wisconsin 69134, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1205044773
Name
Derek Steven Serna
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
69134 WI
01069267A IN
35091934 OH
Self-reported in NPPES; status is on the state search
Practice location
N16W24131 Riverwood Dr, Waukesha, WI 53188
Phone
(262) 696-5690
Enumerated
May 18, 2007
Record last updated
Jan 6, 2025
Medicaid ID
201035110 IN
Medicare enrollment
Enrolled (PECOS I20180620003185); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2005
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 N16W24131 Riverwood Dr

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

  1. Abigail Boesl, AUDAudiologist1558256115
  2. Christopher Burnett, MDMOHS-Micrographic Surgery Physician1780863779
  3. Kathleen Bussen, PTPhysical Medicine & Rehabilitation Physician1285133504
  4. Ryan Condon, MS, LCGCGenetic Counselor (M.S.)1003601295
  5. Katie DammenAdult Health Nurse Practitioner1083449441
  6. Laura GildersleevePhysician Assistant1356074850

Verify Derek Steven Serna in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 69134
    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 Wisconsin license search

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77% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,552 Medicare Part D claims for 247 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 85 claims were for opioids.

  1. Derek Serna1,552
  2. Specialty average877

Most prescribed

  1. Letrozole279 claims
  2. Eliquis138 claims
  3. Prochlorperazine Maleate109 claims
  4. Ondansetron Hcl88 claims
  5. Acyclovir83 claims
  6. Dexamethasone64 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: $146.75

1 payment: food and beverage; the largest payer was Medtronic, 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. Derek Serna$146.75
  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 one group practice

  1. Prohealth Medical Group IncWaukesha, WI

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

Derek Steven Serna among 295 hematology & oncology physician records in Wisconsin

Derek Steven Serna, M.D. is one of 295 hematology & oncology physician records with a practice address in Wisconsin. 82% 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 41% of them.

  • NPI issued2007 · 41% of these records are older, 46% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2005 · median 2004 among the 217 with a school on file
  • Record last updated2025 · 51% 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 Wisconsin 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 Wisconsin

There are 295 hematology & oncology physician records in Wisconsin.

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

  1. Christopher Hake, MDWaukesha, WI 531881871544619
  2. Kathleen Hemauer, M.D.Waukesha, WI 531881326467234
  3. Peter Johnson, M.D.Waukesha, WI 531881407948763
  4. Jonathan Kapke, DOWaukesha, WI 531881093058372
  5. Laura Raftery, M.D.Waukesha, WI 531881992862551
  6. Mohammad Raza, M.D.Waukesha, WI 531881952585788
  7. Federico Sanchez, M.D.Waukesha, WI 531881396710836
  8. Timothy Wassenaar, MDWaukesha, WI 531881518928993

Common questions

What is Derek Steven Serna, M.D.'s NPI number?

Derek Steven Serna, M.D.'s National Provider Identifier (NPI) is 1205044773, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Derek Steven Serna, M.D. located?

The NPPES record lists a practice address at N16W24131 Riverwood Dr, Waukesha, WI, 53188. Phone: (262) 696-5690. Providers update this record themselves, so call before visiting.

How can I verify Derek Steven Serna, M.D.'s license?

NPPES lists Wisconsin license number 69134, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Derek Steven Serna, M.D. prescribe under Medicare Part D?

In 2024, Derek Steven Serna, M.D. had 1,552 Medicare Part D claims for 247 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.