DR. WILLIAM R HARTMAN (M.D.) – Anesthesiology Physician, NPI 1659345080

DR. WILLIAM R HARTMAN (M.D.) is a healthcare provider. based in Fitchburg, Wisconsin. specializing in ANESTHESIOLOGY. They hold the professional credentials M.D.. They hold a License No. 0055601 (CO). The NPI Number for DR. WILLIAM R HARTMAN (M.D.) is 1659345080

Main info

Male
23 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM R HARTMAN (M.D.)
NPI
1659345080
Phone
(507) 254-1478
Address
3096 Edenberry St
Enumeration Date
14 February 2006
Last Update Date
29 September 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7158385222
Graduation Year
2003 (23 years ago)
PAC ID
8729047980
Group Practice PAC ID
4385553627
Professional Enrollment ID
I20190725000865
Address ID
WI547035222EA1400XSTXX300
Telehealth
Yes

Contacts

Secure Messaging
whartman1050759@direct.uwhealth.org
Secure Messaging
whartman2561324@ehrdirect.mayoclinicmsg.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience82
Completeness95
Years active:20State licenses:3Other names

1,266 ANESTHESIOLOGY in WI

Provider Addresses for DR. WILLIAM R HARTMAN (M.D.)

  • 3096 Edenberry St

    Fitchburg, WI 537117201

    Phone: (507) 254-1478

    Type: Location

  • 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 537925425

    Phone: (608) 263-8100

    Type: Location

  • PO BOX 860912

    MINNEAPOLIS, MN 554860912

    Phone: (507) 284-2511

    Type: Mailing

  • 1400 BELLINGER STREET

    EAU CLAIRE, WI 547035222

    Phone: (715) 838-5222

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $175.

Total Amount is formed as General ($175) + Research ($0) + Ownership ($0) = $175.

Last reported payment date: 2023-08-17 • Largest payer in this snapshot: ModernaTX, Inc. ($175).

Total Amount

$175

General + Research + Ownership

Payments

1

Total payment records

General Amount

$175

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-08-17

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
ModernaTX, Inc.$175
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: 2019-07-25

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
I20190725000865IAnesthesiologyWITBD

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.

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

Insurance plans in this area (ZIP 53711)

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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: 4385553627View full group profile

Reviews

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Frequently asked questions

How is DR. WILLIAM R HARTMAN (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. WILLIAM R HARTMAN (M.D.) with NPI 1659345080.
Is DR. WILLIAM R HARTMAN (M.D.) still practicing?
DR. WILLIAM R HARTMAN (M.D.) is currently listed as active in the public NPI registry.
What taxonomy line describes DR. WILLIAM R HARTMAN (M.D.)?
For research purposes, treat DR. WILLIAM R HARTMAN (M.D.) as Anesthesiology Physician in this dataset. Clinical services aligned with this taxonomy classification.
What address line appears for DR. WILLIAM R HARTMAN (M.D.)?
DR. WILLIAM R HARTMAN (M.D.)'s geographic hint is Fitchburg, Wisconsin in our summary view.
How many locations tie to this NPI?
5 practice locations appear in the available data.