1. Home
  2. Directory
  3. Wisconsin
  4. Wausau
  5. Psychiatry Neurology
  6. NPI Profile

TIMOTHY RYAN PARKER MD
NPI 1063944429
Psychiatry & Neurology - Psychiatry in Wausau, WI

Active since April 03, 2017PECOS EnrolledAccepts Medicare Assignment
425 WIND RIDGE DR, WAUSAU, WI 54401(715) 675-3391 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 19, 2021, May 28, 2019 (2 updates tracked since 2019).

About Timothy Ryan Parker Md NPPES

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

TIMOTHY RYAN PARKER MD (NPI 1063944429) is an individual psychiatry provider in Wausau, Wisconsin, licensed in South Carolina (LL82558) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Aspirus Rhinelander Hospital, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1063944429
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameTIMOTHY RYAN PARKERCredential: MD
Location Address425 WIND RIDGE DRWausau, WI 54401-4149
Mailing Address425 Wind Ridge DrWausau, WI 54401-4149 · (715) 675-3391
Phone(715) 675-3391
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 3, 2017
Last NPPES UpdateJune 29, 20262 updates tracked since enumeration
NPPES CertifiedJune 29, 2026
✔ NPI 1063944429 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in SC · LL82558
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
425 WIND RIDGE DR, Wausau, WI 54401
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Timothy Ryan Parker Md 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 ID9335507482
PECOS Enrollment IDI20230621002548
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.

Medicare Billing Reassignments

4

Medicare enrollment records show Timothy Parker reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aspirus Wausau Hospital, Inc.
Same address
Family Medicine
425 WIND RIDGE DR
Wausau, WI 54401
  • Reassigned Medicare billing, Wisconsin enrollment
  • 633 clinicians in this Medicare group
NPI 1396174876 (715) 675-3391
Aspirus Medical Group, Inc.
0.1 mi
Cardiovascular Disease
500 WIND RIDGE DR
Wausau, WI 54401
  • Reassigned Medicare billing, Wisconsin enrollment
  • 415 clinicians in this Medicare group
NPI 1033411822 (715) 847-2611
Langlade Memorial Hospital Hotel Dieu Of St Joseph
0.4 mi
Clinic/Center
215 N 28TH AVE
Wausau, WI 54401
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: Langlade Hospital - Hotel Dieu Of St Joseph Of Antigo Wisconsin
  • Also billed through NPI 1821151366 (Wisconsin)
  • 321 clinicians in this Medicare group
NPI 1871630863 (715) 847-2304
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc.
26 mi
Clinic/Center
1660 SUE ALAN DR
Wittenberg, WI 54499
  • Reassigned Medicare billing, Wisconsin enrollment
  • 935 clinicians in this Medicare group
NPI 1114696507 (715) 253-2110

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

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.
132 services43 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
51 services51 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
25 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Aspirus Rhinelander Hospital

Acute Care Hospitals · Rhinelander, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520019
Location2251 North Shore DrRhinelander, WI 54501 · Oneida County
Emergency services Birthing friendly

Aspirus Wausau Hospital

Acute Care Hospitals · Wausau, WI
4/5 CMS rating
OwnershipProprietary
CMS Certification Number520030
Location333 Pine Ridge BlvdWausau, WI 54401 · Marathon County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54401 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
$163.24 typical visit price
range $53.90 – $163.24
Typical copayment $40.81 (range $13.47 – $40.81)
Most-billed visit code 99205
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.

ELIJAH SZYMANSKI MD
Student in an Organized Health Care Education/Training Program
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391
UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION, INC
Clinic/Center (Multi-Specialty)
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-5201
ADAM G CLEMENTS DO
Family Medicine
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391
DR. TAYLOR DEBOER
Pharmacist
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391
YIA VANG MD
Student in an Organized Health Care Education/Training Program
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391
ERIK J GUSTAFSON DO
Family Medicine
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391
REBECCA THAO
Pharmacist
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391
QUANG CAO MD
Family Medicine
425 WIND RIDGE DR
WAUSAU, WI 54401
Marathon County (715) 675-3391

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 Timothy Parker's NPI number?

The NPI number for Timothy Parker is 1063944429. It was assigned to this individual provider in the NPPES registry on April 3, 2017.

Where is Timothy Parker located?

Timothy Parker practices at 425 Wind Ridge Dr, Wausau, WI 54401. The listed phone number is (715) 675-3391.

What is Timothy Parker's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Timothy Parker enrolled in Medicare?

Yes. Timothy Parker 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.

Which organizations bill Medicare for Timothy Parker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Parker reassigns Medicare benefits to 4 organizations: Aspirus Wausau Hospital, Inc. (Wausau, WI), Aspirus Medical Group, Inc. (Wausau, WI), Langlade Memorial Hospital Hotel Dieu Of St Joseph (Wausau, WI) and Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. (Wittenberg, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Timothy Parker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Timothy Parker accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners, Security Health Plan and UnitedHealthcare list Timothy Parker 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 Timothy Parker affiliated with any hospitals?

According to CMS data, Timothy Parker is affiliated with Aspirus Rhinelander Hospital and Aspirus Wausau Hospital.

When was this NPI record last updated?

The NPPES record for Timothy Parker was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.