MR. MARK R ZELLMER PA-C
NPI 1023013364
Physician Assistant - Medical in Whitehall, WI

Active since June 14, 2005PECOS EnrolledAccepts Medicare Assignment
18606 ERVIN ST, WHITEHALL, WI 54773(715) 538-4355 Get Directions Write a Review

NPPES record last updated: February 8, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mr. Mark R Zellmer Pa-c NPPES

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

MR. MARK R ZELLMER PA-C (NPI 1023013364) is an individual medical provider in Whitehall, Wisconsin, licensed in Wisconsin (507) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of Other (1983).

NPPES Registry Identity

NPI1023013364
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameMR. MARK R ZELLMERCredential: PA-C
Location Address18606 ERVIN STWhitehall, WI 54773-8613
Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateJune 14, 2005
Last NPPES UpdateFebruary 8, 2023
NPPES CertifiedFebruary 8, 2023
NPI 1023013364 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License Licensed in WI · 507
Also ListedPhysician AssistantTaxonomy 363A00000X · License 8874 (MN)
18606 ERVIN ST, Whitehall, WI 54773

Other Identifiers 2

Medicaid874650800MN
Medicaid42918400WI

Accepted 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

Mr. Mark R Zellmer Pa-c 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 ID6901888387
PECOS Enrollment IDI20040601001433
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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
29 services17 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
22 services19 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
17 services15 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520087
Location1910 South AveLa Crosse, WI 54601 · La Crosse County
Emergency services Birthing friendly

Gundersen St Josephs Hospital And Clinics

Critical Access Hospitals · Hillsboro, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521304
Location400 Water AveHillsboro, WI 54634 · Vernon County
Emergency services

Gundersen Tri-County Hospital & Clinics

Critical Access Hospitals · Whitehall, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521316
Location18601 Lincoln StWhitehall, WI 54773 · Trempealeau County
Emergency services

Other Providers at the Same Location NPPES 11

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

Physician Assistant
18606 ERVIN ST
WHITEHALL, WI 54773
Nurse Practitioner (Family)
18606 ERVIN ST
WHITEHALL, WI 54773
Optometrist
18606 ERVIN ST
WHITEHALL, WI 54773
Family Medicine
18606 ERVIN ST
WHITEHALL, WI 54773
Physician Assistant
18606 ERVIN ST
WHITEHALL, WI 54773
Optometrist
18606 ERVIN ST
WHITEHALL, WI 54773
Clinic/Center (Rural Health)
18606 ERVIN ST
WHITEHALL, WI 54773
Clinic/Center
18606 ERVIN ST
WHITEHALL, WI 54773

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Zellmer's NPI number?

The NPI number for Mark Zellmer is 1023013364. It was assigned to this individual provider in the NPPES registry on June 14, 2005.

Where is Mark Zellmer located?

Mark Zellmer practices at 18606 Ervin St, Whitehall, WI 54773. The listed phone number is (715) 538-4355.

What is Mark Zellmer's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Mark Zellmer enrolled in Medicare?

Yes. Mark Zellmer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mark Zellmer accept?

Health plans from Anthem Blue Cross and Blue Shield, HealthPartners and Quartz list Mark Zellmer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Zellmer affiliated with any hospitals?

According to CMS data, Mark Zellmer is affiliated with Gundersen Lutheran Medical Center, Gundersen St Josephs Hospital And Clinics and Gundersen Tri-County Hospital & Clinics.

When was this NPI record last updated?

The NPPES record for Mark Zellmer was last updated on February 8, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.