PETER A MAHLER (MD PHD) – Radiation Oncology Physician, NPI 1730142258

Radiation Oncology Physician

PETER A MAHLER (MD PHD) is a healthcare provider. based in Madison, Wisconsin. specializing in Radiation Oncology Physician. They hold the professional credentials MD PHD. They hold a License No. 29813 (WI). The NPI Number for PETER A MAHLER (MD PHD) is 1730142258

Main info

Male

39 Years Of Experience

Accepts Medicare Assignment

Name

PETER A MAHLER (MD PHD)

NPI

1730142258

Phone

(608) 233-6732

Address

3220 TALLYHO LN

Enumeration Date

7 April 2006

Last Update Date

1 March 2023

Doctor Profile

Medical School Name

UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE

Secondary Phone

9206993500

Graduation Year

1987 (39 years ago)

PAC ID

1658457973

Group Practice PAC ID

6608785464

Professional Enrollment ID

I20101025000701

Contacts

Secure Messaging

pmahler6274@direct.uwhealth.org

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience69

Completeness85

Years active:20State licenses:1Other namesUpdated within 12 months

Provider Addresses for PETER A MAHLER (MD PHD)

3220 TALLYHO LN
MADISON, WI 537052121
Phone: (608) 233-6732
Type: Mailing
7974, UW Health Court, Discovery Springs, City of Middleton, Dane County, Wisconsin, 53562, United States
MIDDLETON, WI 535625531
Phone:
Type: Mailing
University Hospital Outpatient Pharmacy, 600, Highland Avenue, Madison, Dane County, Wisconsin, 53705-2221, United States
MADISON, WI 537922121
Phone: (608) 263-8500
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCS	Description	Services	Beneficiaries	Medicare allowed
77014	Ct guidance for insertion of radiation therapy fields	58	28	$0

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Insurance plans in this area (ZIP 53705)

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Provider's Procedures

PETER A MAHLER (MD PHD) performs procedures in Radiation Oncology Physician. See the list of HCPCS codes below.

Specialty	Practice State	HCPCS Code	Description	Service Count	Beneficiary Count
RADIATION ONCOLOGY	WI	77300	Calculation of radiation therapy dose	35	11
RADIATION ONCOLOGY	WI	77427	Radiation treatment management, 5 treatments	83	38

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 6608785464View full group profile

Name	Specialty	State
MEGAN FITZPATRICK (MD)	-	WI
JACQUELYN BYRD	-	WI
SHARON K. FINLAYSON (NP)	Nurse Practitioner	WI
BRITTANY SIMPSON (NP)	Nurse Practitioner	WI
MICHAEL DUANE WILLIAMS (MD)	Family Practice	WI
BRUCE A HARMS (MD)	-	WI
KEITH C MEYER (MD)	-	WI
MICHAEL W RITTER (MD)	-	WI
DR. YEW-XIN TEH (MD)	Endocrinology, Internal Medicine	WI
DR. KARI ANN KUBALANZA (M.D.)	Medical Oncology, Hematology/Oncology	CA

Reviews

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Frequently asked questions

What is the 10-digit NPI for PETER A MAHLER (MD PHD)?

PETER A MAHLER (MD PHD) — NPI 1730142258 — is the standard way to identify this listing.

Is PETER A MAHLER (MD PHD) still practicing?

PETER A MAHLER (MD PHD) is currently listed as active in the public NPI registry.

What taxonomy line describes PETER A MAHLER (MD PHD)?

For research purposes, treat PETER A MAHLER (MD PHD) as Radiation Oncology Physician in this dataset. Clinical services aligned with this taxonomy classification.

Where should I expect PETER A MAHLER (MD PHD) on a map?

Expect Madison, Wisconsin as a primary anchor for PETER A MAHLER (MD PHD) unless the record lists multiple sites.

Is specialty guaranteed by NPI alone?

Taxonomy selections describe intent; scope of practice still follows state law.