DR. DEREK STEVEN SERNA M.D.
NPI 1205044773
Internal Medicine - Hematology & Oncology in Waukesha, WI

Active since May 18, 2007PECOS EnrolledAccepts Medicare Assignment
N16W24131 RIVERWOOD DR, WAUKESHA, WI 53188(262) 696-5690 Get Directions Write a Review

NPPES record last updated: January 6, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 6, 2025, Jun 27, 2018, Dec 21, 2015 (3 updates tracked since 2015).

About Dr. Derek Steven Serna M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DEREK STEVEN SERNA M.D. (NPI 1205044773) is an individual hematology & oncology provider in Waukesha, Wisconsin, licensed in Wisconsin (69134) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Waukesha Memorial Hospital, and is a graduate of Medical College Of Wisconsin (2005).

NPPES Registry Identity

NPI1205044773
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. DEREK STEVEN SERNACredential: M.D.
Location AddressN16W24131 RIVERWOOD DRWaukesha, WI 53188-1106
Mailing AddressN16w24131 Riverwood DrWaukesha, WI 53188-1106 · (262) 696-5690
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 2005
Enumeration DateMay 18, 2007
Last NPPES UpdateJanuary 6, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2025
NPI 1205044773 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses Licensed in WI · 69134 Licensed in OH · 35091934 Licensed in IN · 01069267A
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
N16W24131 RIVERWOOD DR, Waukesha, WI 53188

Other Identifiers 2

Medicaid201035110IN
Other000000721848IN · Anthem

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Derek Steven Serna M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911176391
PECOS Enrollment IDI20180620003185
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
182 services116 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
178 services57 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
114 services59 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
106 services69 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
65 services31 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
49 services40 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Waukesha Memorial Hospital

Acute Care Hospitals · Waukesha, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520008
Location725 American AveWaukesha, WI 53188 · Waukesha County
Emergency services Birthing friendly

Oconomowoc Memorial Hospital

Acute Care Hospitals · Oconomowoc, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520062
Location791 E Summit AveOconomowoc, WI 53066 · Waukesha County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53188 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$163.24 typical visit price
range $53.90 – $163.24
Typical copayment $40.81 (range $13.47 – $40.81)
Most-billed visit code 99205
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Genetic Counselor, MS
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Durable Medical Equipment & Medical Supplies
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Physician Assistant
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Dermatology
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Nurse Practitioner (Adult Health)
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Internal Medicine (Hematology & Oncology)
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Nurse Practitioner (Family)
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188
Internal Medicine
N16W24131 RIVERWOOD DR
WAUKESHA, WI 53188

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Derek Serna's NPI number?

The NPI number for Derek Serna is 1205044773. It was assigned to this individual provider in the NPPES registry on May 18, 2007.

Where is Derek Serna located?

Derek Serna practices at N16w24131 Riverwood Dr, Waukesha, WI 53188. The listed phone number is (262) 696-5690.

What is Derek Serna's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Derek Serna enrolled in Medicare?

Yes. Derek Serna is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Derek Serna accept?

Health plans from Anthem Blue Cross and Blue Shield and Network Health list Derek Serna as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Derek Serna affiliated with any hospitals?

According to CMS data, Derek Serna is affiliated with Waukesha Memorial Hospital and Oconomowoc Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Derek Serna was last updated on January 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.