NPPES file of Aug 9, 2026

Christopher R. Hake, MD

Hematology & Oncology Physician · Waukesha, WI

Christopher R. Hake, MD is a hematology & oncology physician with a practice address in Waukesha, Wisconsin, and NPI 1871544619, issued on May 15, 2006. Check the license (Wisconsin 56851, 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
1871544619
Name
Christopher R. Hake
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
56851 WI
46851 WI
Self-reported in NPPES; status is on the state search
Practice location
725 American Ave, Waukesha, WI 53188
Phone
(262) 928-2570
Enumerated
May 15, 2006
Record last updated
Jan 26, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
34822100 WI
Medicare enrollment
Enrolled (PECOS I20060202000305); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2002
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 725 American Ave

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

  1. Mikayla Abbeduto, DPTPhysical Therapist1316513955
  2. Zuber Ali, M.D.Cardiovascular Disease Physician1548536204
  3. Heather AvelloneFamily Nurse Practitioner1114499001
  4. Mark Bakalars, M.D.Vascular & Interventional Radiology Physician1174518724
  5. Lisa BakerAdult Health Nurse Practitioner1588973275
  6. Melissa Becker, PA-CPhysician Assistant1780132944

Verify Christopher R. Hake in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 56851
    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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2.7 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,338 Medicare Part D claims for 336 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 143 claims were for opioids.

  1. Christopher Hake2,338
  2. Specialty average877

Most prescribed

  1. Letrozole257 claims
  2. Eliquis177 claims
  3. Anastrozole92 claims
  4. Prochlorperazine Maleate84 claims
  5. Acyclovir83 claims
  6. Gabapentin71 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: $23.75

1 payment: food and beverage; the largest payer was Taiho Oncology, 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. Christopher Hake$23.75
  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 IncBrookfield, WI

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

Christopher R. Hake among 295 hematology & oncology physician records in Wisconsin

Christopher R. Hake, MD 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2002 · median 2004 among the 217 with a school on file
  • Record last updated2012 · 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. Kathleen Hemauer, M.D.Waukesha, WI 531881326467234
  2. Peter Johnson, M.D.Waukesha, WI 531881407948763
  3. Jonathan Kapke, DOWaukesha, WI 531881093058372
  4. Laura Raftery, M.D.Waukesha, WI 531881992862551
  5. Mohammad Raza, M.D.Waukesha, WI 531881952585788
  6. Federico Sanchez, M.D.Waukesha, WI 531881396710836
  7. Derek Serna, M.D.Waukesha, WI 531881205044773
  8. Timothy Wassenaar, MDWaukesha, WI 531881518928993

Common questions

What is Christopher R. Hake, MD's NPI number?

Christopher R. Hake, MD's National Provider Identifier (NPI) is 1871544619, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher R. Hake, MD located?

The NPPES record lists a practice address at 725 American Ave, Waukesha, WI, 53188. Phone: (262) 928-2570. Providers update this record themselves, so call before visiting.

How can I verify Christopher R. Hake, MD's license?

NPPES lists Wisconsin license number 56851, 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 Christopher R. Hake, MD prescribe under Medicare Part D?

In 2024, Christopher R. Hake, MD had 2,338 Medicare Part D claims for 336 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.