WARREN W OLDS (MD) – Radiation Oncology Physician, NPI 1326146606

WARREN W OLDS (MD) is a healthcare provider. based in Marshfield, Wisconsin. specializing in Radiation Oncology Physician. They hold the professional credentials MD. They hold a License No. 34154 (WI). The NPI Number for WARREN W OLDS (MD) is 1326146606

Main info

Male
48 Years Of Experience
Accepts Medicare Assignment
Name
WARREN W OLDS (MD)
NPI
1326146606
Phone
Not provided
Address
1000 N OAK AVE
Enumeration Date
20 September 2006
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
UNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Secondary Phone
7153875511
Graduation Year
1978 (48 years ago)
PAC ID
1355369950
Group Practice PAC ID
5698071173
Professional Enrollment ID
I20051102000636
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for WARREN W OLDS (MD)

  • Marshfield Clinic Marshfield Center, 1000, North Oak Avenue, Marshfield, Wood County, Wisconsin, 54449, United States

    MARSHFIELD, WI 544495777

    Phone:

    Mailing address matches the actual address.

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 54449)

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Provider's Procedures

WARREN W OLDS (MD) performs procedures in Radiation Oncology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
RADIATION ONCOLOGYWI77263Management of radiation therapy, complex1414
RADIATION ONCOLOGYWI77300Calculation of radiation therapy dose4633
RADIATION ONCOLOGYWI77427Radiation treatment management, 5 treatments7720

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: 5698071173View full group profile
NameSpecialtyState
ALISON RAE SAMPSON (D.O.)
-WI
DR. SONJA BLUM (MD, PHD)
N E U R O L O G YNY
MS. KATHY LYNNE OBERMANN (ANP-BC APNP)
Nurse PractitionerWI
KRISTIN M GERNDT (MD)
Interventional Radiology, Diagnostic RadiologyWI
DR. JONATHAN EUGENE CUTLAN (M.D.)
-WI
DR. SOWMYA CHOUDARY PUVVADA (M.D.)
P S Y C H I A T R YIL
RONI KRISTIN DEVLIN (M.D.)
-MI
GRACE C DEVADAS (MD)
Internal MedicineWI
KELLY S. RASMUSSEN (NP)
Nurse PractitionerIL
DR. ADAM JEFFREY SILVER (MD)
Cardiovascular Disease (Cardiology)IL

Reviews

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Frequently asked questions

Can I verify WARREN W OLDS (MD) with an NPI only?
You can start verification with NPI 1326146606 for WARREN W OLDS (MD), then check state licensing separately.
Does the file indicate WARREN W OLDS (MD) is practicing under active NPI?
Directory data currently reports WARREN W OLDS (MD) as active.
What healthcare role does WARREN W OLDS (MD) hold?
Scheduling teams often label WARREN W OLDS (MD) under Radiation Oncology Physician. Clinical services aligned with this taxonomy classification.
What area does WARREN W OLDS (MD) serve?
WARREN W OLDS (MD)'s listing highlights Marshfield, Wisconsin; more addresses can appear in NPPES.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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