DR. WILLIAM R HARTMAN M.D.
NPI 1659345080
Anesthesiology in Eau Claire, WI

Q: What is William Hartman's NPI number?

The NPI number for William Hartman is 1659345080. It was assigned to this individual provider in the NPPES registry on February 14, 2006.

Q: What is William Hartman's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for William Hartman was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 14, 2006PECOS EnrolledAccepts Medicare Assignment

1400 BELLINGER STREET, EAU CLAIRE, WI 54703(715) 838-5222 Get Directions Write a Review

NPPES record last updated: May 18, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 18, 2026, Jan 19, 2021, Jul 17, 2019 (3 updates tracked since 2019).

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About Dr. William R Hartman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM R HARTMAN M.D. (NPI 1659345080) is an individual anesthesiology provider in Eau Claire, Wisconsin, licensed in Wisconsin (71453) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Health System-franciscan Medical Center Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1659345080

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. WILLIAM R HARTMANCredential: M.D.

Location Address1400 BELLINGER STREETEau Claire, WI 54703-5222

Mailing AddressPo Box 860912Minneapolis, MN 55486-0912 · (507) 284-2511

Phone(715) 838-5222

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateFebruary 14, 2006

Last NPPES UpdateMay 18, 20263 updates tracked since enumeration

NPPES CertifiedMay 18, 2026

✔ NPI 1659345080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in WI · 71453✔ Licensed in MN · 46750✔ Licensed in CO · 0055601

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

1400 BELLINGER STREET, Eau Claire, WI 54703

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Secondary Practice Locations 2

Location 1200 1st St SWRochester, MN 55905-0001 · Phone (507) 284-2511

Location 23096 Edenberry StFitchburg, WI 53711-7201 · Phone (507) 254-1478

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William R Hartman M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729047980

PECOS Enrollment IDI20190725000865

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

48 services48 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

43 services43 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

25 services25 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mayo Clinic Health System-Franciscan Medical Center Inc

Acute Care Hospitals · La Crosse, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520004

Location700 West Avenue SouthLa Crosse, WI 54601 · La Crosse County

Emergency services Birthing friendly

Mayo Clinic Health System Eau Claire Hospital

Acute Care Hospitals · Eau Claire, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520070

Location1221 Whipple StEau Claire, WI 54703 · Eau Claire County

Emergency services Birthing friendly

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number520098

Location600 Highland AvenueMadison, WI 53792 · Dane County

Emergency services

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RHIANNON C RILEY APNP

Nurse Practitioner