DR. ISAIAH WESLEY TAN (MD) – Diagnostic Radiology Physician, NPI 1215499264

DR. ISAIAH WESLEY TAN (MD) is a healthcare provider. based in Middleton, Wisconsin. specializing in DIAGNOSTIC RADIOLOGY, NEUROLOGY. They hold the professional credentials MD. They hold a License No. 75143 (WI). The NPI Number for DR. ISAIAH WESLEY TAN (MD) is 1215499264

Main info

Male
7 Years Of Experience
Accepts Medicare Assignment
Name
DR. ISAIAH WESLEY TAN (MD)
NPI
1215499264
Phone
Not provided
Address
7974 UW HEALTH CT
Enumeration Date
1 April 2019
Last Update Date
5 March 2026

Doctor Profile

Medical School Name
UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Secondary Phone
6082229777
Graduation Year
2019 (7 years ago)
PAC ID
0446584999
Group Practice PAC ID
3870489586
Professional Enrollment ID
I20230817004107
Address ID
WI537188339MA5249XDRXX400
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

1,101 DIAGNOSTIC RADIOLOGY in WI

Provider Addresses for DR. ISAIAH WESLEY TAN (MD)

  • 7974 UW HEALTH CT

    MIDDLETON, WI 535625531

    Phone:

    Type: Mailing

  • University Hospital Outpatient Pharmacy, 600, Highland Avenue, Madison, Dane County, Wisconsin, 53705-2221, United States

    MADISON, WI 537920001

    Phone: (608) 263-6400

    Type: Mailing

  • N2950 State Road 67

    Lake Geneva, WI 531472655

    Phone: (262) 245-0535

    Type: Location

  • 1604 S Hillcrest St

    Urbana, IL 618015006

    Phone: (217) 521-4796

    Type: Location

  • 1000 Mineral Point Ave

    Janesville, WI 535482940

    Phone: (608) 756-6000

    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.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2023-08-17

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

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
I20230817004107IDiagnostic RadiologyWITBD

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
71045X-ray of chest, 1 view5048$0
70450Ct scan head or brain without contrast1111$0
View full utilization report →

Insurance plans in this area (ZIP 53562)

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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: 3870489586View full group profile
NameSpecialtyState
Physical Therapist In Private PracticeWI
-WI
Diagnostic RadiologyIA
Nurse PractitionerWI
-WI
Diagnostic RadiologyWI
-WI
Clinical Social WorkerWI
-WI
Diagnostic RadiologyWI

Reviews

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Frequently asked questions

What number should I use to identify DR. ISAIAH WESLEY TAN (MD) for billing?
Administrative and clinical systems typically use NPI 1215499264 for DR. ISAIAH WESLEY TAN (MD).
Should I treat DR. ISAIAH WESLEY TAN (MD) as an active provider?
Patients and plans typically see DR. ISAIAH WESLEY TAN (MD) as active in the national extract.
What does the directory say DR. ISAIAH WESLEY TAN (MD) does?
Insurance directories may phrase it differently, but here DR. ISAIAH WESLEY TAN (MD) maps to Diagnostic Radiology Physician. Clinical services aligned with this taxonomy classification.
What geographic area is tied to DR. ISAIAH WESLEY TAN (MD)?
DR. ISAIAH WESLEY TAN (MD) is associated with Middleton, Wisconsin in the same public data insurers reference.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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