TIMOTHY MESS PA-C
NPI 1922446020
Physician Assistant in Altoona, WI

Q: What is Timothy Mess's NPI number?

The NPI number for Timothy Mess is 1922446020. It was assigned to this individual provider in the NPPES registry on June 11, 2013.

Q: What is Timothy Mess's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Timothy Mess was last updated on June 4, 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 June 11, 2013PECOS EnrolledAccepts Medicare Assignment

1200 OAKLEAF WAY STE A, ALTOONA, WI 54720(715) 832-1400(715) 832-4187 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 4, 2026, Dec 20, 2021 (2 updates tracked since 2021).

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About Timothy Mess Pa-c NPPES

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

TIMOTHY MESS PA-C (NPI 1922446020) is an individual physician assistant in Altoona, Wisconsin, licensed in Wisconsin (3132-23) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Oakleaf Surgical Hospital, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1922446020

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameTIMOTHY MESSCredential: PA-C

Location Address1200 OAKLEAF WAY STE AAltoona, WI 54720-2217

Mailing Address1200 Oakleaf Way Ste AAltoona, WI 54720-2217

Phone(715) 832-1400

Fax(715) 832-4187

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateJune 11, 2013

Last NPPES UpdateJune 4, 20262 updates tracked since enumeration

NPPES CertifiedJune 4, 2026

✔ NPI 1922446020 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in WI · 3132-23

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 313223 (WI)

Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License 313223 (WI)

1200 OAKLEAF WAY STE A, Altoona, WI 54720

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, HealthPartners, Medica and more.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

Timothy Mess 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 ID9638319379

PECOS Enrollment IDI20130701000523

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 6

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

485 services49 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

72 services54 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

39 services39 patients

Replacement of knee joint, both sides of knee 27447

A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.

21 services20 patients

Replacement of thigh bone and hip joint with prosthesis 27130

This procedure, known as hip arthroplasty, involves replacing your damaged thigh bone and hip joint with artificial parts, called a prosthesis. It helps relieve pain, improve mobility, and enhance your quality of life.

15 services15 patients

Hyaluronan or derivative, gel-one, for intra-articular injection, per dose J7326

Hyaluronan or Gel-One is a substance injected directly into your joint space. It's aimed to supplement your body's natural joint fluid, helping to lubricate and cushion the joint, reducing pain and improving mobility. It's often used for arthritis relief.

13 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Oakleaf Surgical Hospital

Acute Care Hospitals · Altoona, WI

OwnershipPhysician

CMS Certification Number520196

Location1000 Oakleaf WayAltoona, WI 54720 · Eau Claire County

Aspirus Stanley Hospital

Critical Access Hospitals · Stanley, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521311

Location1120 Pine StStanley, WI 54768 · Chippewa County

Emergency services

Spooner Health System

Critical Access Hospitals · Spooner, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521332

Location1280 Chandler DrSpooner, WI 54801 · Washburn County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54720 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$67.37 typical visit price

range $17.40 – $133.76

Typical copayment $16.84 (range $4.35 – $33.44)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

NATHAN HOADLEY HARRIS M.D.

Orthopaedic Surgery