DR. BENJAMIN DONNER WILLEN (MD) – Radiation Oncology Physician, NPI 1437643905

DR. BENJAMIN DONNER WILLEN (MD) is a healthcare provider. based in Royal oak, Michigan. specializing in RADIATION ONCOLOGY. They hold the professional credentials MD. They hold a License No. 4351032337 (MI). The NPI Number for DR. BENJAMIN DONNER WILLEN (MD) is 1437643905

Main info

Male
8 Years Of Experience
Accepts Medicare Assignment
Name
DR. BENJAMIN DONNER WILLEN (MD)
NPI
1437643905
Phone
(248) 898-5000
Address
3601 W 13 MILE RD
Enumeration Date
19 June 2018
Last Update Date
15 January 2026

Doctor Profile

Medical School Name
WRIGHT STATE UNIVERSITY BOONSHOFT SCHOOL OF MEDICINE
Secondary Phone
9705265555
Graduation Year
2018 (8 years ago)
PAC ID
4981950508
Group Practice PAC ID
6800031386
Professional Enrollment ID
I20240920001320
Address ID
CO807514523ST615XXSTXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness85
Years active:7State licenses:2Digital endpointsOther names

248 RADIATION ONCOLOGY in MI

Loading map...

Provider Addresses for DR. BENJAMIN DONNER WILLEN (MD)

  • Beaumont Hospital - Royal Oak, 3601, West 13 Mile Road, Royal Oak, Oakland County, Michigan, 48073, United States

    ROYAL OAK, MI 480736712

    Phone: (248) 898-5000

    Type: Mailing

  • 1801 16TH ST

    GREELEY, CO 806315154

    Phone: (970) 810-3894

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 12 Open Payments records for all available years, with a total value of $789.

Total Amount is formed as General ($789) + Research ($0) + Ownership ($0) = $789.

Last reported payment date: 2024-06-14 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($380).

Total Amount

$789

General + Research + Ownership

Payments

12

Total payment records

General Amount

$789

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-06-14

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

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

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2024-09-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20240906000084IRadiation OncologyMTTBD
I20240920001320IRadiation OncologyCOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

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

HCPCSDescriptionServicesBeneficiariesMedicare allowed
77014Ct guidance for insertion of radiation therapy fields19317$0
77427Radiation treatment management, 5 treatment sessions5419$0
77300Calculation of radiation therapy dose5018$0
77334Design and construction of complex radiation treatment device4318$0
99205New patient office or other outpatient visit, 60-74 minutes3232$0
View full utilization report →

Insurance plans in this area (ZIP 48073)

Loading plans...

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: 6800031386View full group profile

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is the 10-digit NPI for DR. BENJAMIN DONNER WILLEN (MD)?
DR. BENJAMIN DONNER WILLEN (MD) — NPI 1437643905 — is the standard way to identify this listing.
Is DR. BENJAMIN DONNER WILLEN (MD) still practicing?
DR. BENJAMIN DONNER WILLEN (MD) is currently listed as active in the public NPI registry.
What is DR. BENJAMIN DONNER WILLEN (MD)'s primary classification?
Radiation Oncology Physician is the headline specialty for DR. BENJAMIN DONNER WILLEN (MD) here. Clinical services aligned with this taxonomy classification.
What area does DR. BENJAMIN DONNER WILLEN (MD) serve?
DR. BENJAMIN DONNER WILLEN (MD)'s listing highlights Royal Oak, Michigan; more addresses can appear in NPPES.
Why does DR. BENJAMIN DONNER WILLEN (MD) have multiple addresses?
4 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

Similar Providers

DONALD BRABBINS

Radiation Oncology Physician
Beaumont Hospital - Royal Oak, 3601, West 13 Mile Road, Royal Oak, Oakland County, Michigan, 48073, United States
NPI: 1639148018

INGA GRILLS

Radiation Oncology Physician
Beaumont Hospital - Royal Oak, 3601, West 13 Mile Road, Royal Oak, Oakland County, Michigan, 48073, United States
NPI: 1417916156

DR. PETER CHEN (MD, FACR)

Radiation Oncology Physician
Beaumont Boulevard, Southfield, Oakland County, Michigan, 48034, United States
NPI: 1932168481

GREGORY GUSTAFSON

Radiation Oncology Physician
Beaumont Hospital - Royal Oak, 3601, West 13 Mile Road, Royal Oak, Oakland County, Michigan, 48073, United States
NPI: 1922068923

JANNIFER S STROMBERG (M.D.)

Radiation Oncology Physician
3581 W 13 Mile Rd
NPI: 1740240894

DANIEL KRAUSS

Radiation Oncology Physician
Beaumont Hospital - Royal Oak, 3601, West 13 Mile Road, Royal Oak, Oakland County, Michigan, 48073, United States
NPI: 1275593972

JOHN ROBERTSON

Radiation Oncology Physician
Beaumont Boulevard, Southfield, Oakland County, Michigan, 48034, United States
NPI: 1942261086

PRAKASH CHINNAIYAN (M.D.)

Radiation Oncology Physician
Beaumont Boulevard, Southfield, Oakland County, Michigan, 48034, United States
NPI: 1467402172

CRAIG STEVENS (MD)

Radiation Oncology Physician
3577, West 13 Mile Road, Royal Oak, Oakland County, Michigan, 48073, United States
NPI: 1902812415