WILLIAM R KASTEN (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1891770780

WILLIAM R KASTEN (M.D.) is a healthcare provider. based in Waterloo, Iowa. specializing in Anatomic Pathology & Clinical Pathology Physician. They hold the professional credentials M.D.. They hold a License No. 25389 (IA). The NPI Number for WILLIAM R KASTEN (M.D.) is 1891770780

Main info

Male
43 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM R KASTEN (M.D.)
NPI
1891770780
Phone
(319) 233-3044
Address
PO BOX 2910
Enumeration Date
13 December 2005
Last Update Date
26 July 2007

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3192728833
Graduation Year
1983 (43 years ago)
PAC ID
2466460910
Group Practice PAC ID
6204727621
Professional Enrollment ID
I20060331000143
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for WILLIAM R KASTEN (M.D.)

  • Waterloo Post Office, East 4th Street, Waterloo, Monroe County, Illinois, 62298, United States

    WATERLOO, IA 507042910

    Phone: (319) 233-3044

    Fax: (319) 233-0722

    Type: Mailing

  • MercyOne Waterloo Medical Center, 3421, West 9th Street, Waterloo, Black Hawk County, Iowa, 50702, United States

    WATERLOO, IA 507025401

    Phone: (319) 272-8000

    Fax: (319) 233-0722

    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.

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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 50704)

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Provider's Procedures

WILLIAM R KASTEN (M.D.) performs procedures in Anatomic Pathology & Clinical Pathology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PATHOLOGYIA88342Tissue or cell analysis by immunologic technique187174

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: 6204727621View full group profile
NameSpecialtyState
MELISSA ANNE MUCH (M.D.)
P A T H O L O G YCT
DR. JAMES VINCENT HARTEL (M.D.)
P A T H O L O G YIA

Reviews

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Frequently asked questions

Can I verify WILLIAM R KASTEN (M.D.) with an NPI only?
You can start verification with NPI 1891770780 for WILLIAM R KASTEN (M.D.), then check state licensing separately.
Does CMS list WILLIAM R KASTEN (M.D.) as active?
Yes — WILLIAM R KASTEN (M.D.) is active in the NPI listing used on this page.
What is WILLIAM R KASTEN (M.D.)'s primary classification?
Anatomic Pathology & Clinical Pathology Physician is the headline specialty for WILLIAM R KASTEN (M.D.) here. Clinical services aligned with this taxonomy classification.
What address line appears for WILLIAM R KASTEN (M.D.)?
WILLIAM R KASTEN (M.D.)'s geographic hint is Waterloo, Iowa in our summary view.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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