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TIMOTHY GATZ MD
NPI 1689780231
Family Medicine in Kalamazoo, MI

Active since August 23, 2006PECOS EnrolledAccepts Medicare Assignment
8088 VINEYARD DRIVE, KALAMAZOO, MI 49009(269) 286-7090(269) 286-7091 Get Directions Write a Review

NPPES record last updated: September 16, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 16, 2025, Oct 8, 2020, Aug 4, 2020 (3 updates tracked since 2020).

About Timothy Gatz Md NPPES

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

TIMOTHY GATZ MD (NPI 1689780231) is an individual family medicine provider in Kalamazoo, Michigan, licensed in Michigan (4301072512) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Three Rivers Health, and is a graduate of University Of South Florida College Of Medicine (1995).

NPPES Registry Identity

NPI1689780231
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameTIMOTHY GATZCredential: MD
Location Address8088 VINEYARD DRIVEKalamazoo, MI 49009
Mailing Address601 John Street, Box 42Kalamazoo, MI 49007
Phone(269) 286-7090
Fax(269) 286-7091
Sole ProprietorNo
Medical School CMSUniversity Of South Florida College Of MedicineGraduated 1995
Enumeration DateAugust 23, 2006
Last NPPES UpdateSeptember 16, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 16, 2025
✔ NPI 1689780231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MI · 4301072512
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
8088 VINEYARD DRIVE, Kalamazoo, MI 49009
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health 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 Gatz 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 ID1658416243
PECOS Enrollment IDI20100308000226
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

2

Medicare enrollment records show Timothy Gatz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bronson Methodist Hospital
6.1 mi
Hospitalist
601 JOHN STREET
Kalamazoo, MI 49007
  • Reassigned Medicare billing, Michigan enrollment
  • 1,133 clinicians in this Medicare group
NPI 1417961137 (269) 341-7654
Bronson Battle Creek Hospital
26 mi
Internal Medicine
300 NORTH AVE
Battle Creek, MI 49017
  • Reassigned Medicare billing, Michigan enrollment
  • 557 clinicians in this Medicare group
NPI 1093119638 (269) 245-8000

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 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.

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.
399 services224 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.
234 services167 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
118 services118 patients
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Three Rivers Health

Acute Care Hospitals · Three Rivers, MI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number230015
Location701 S Health ParkwayThree Rivers, MI 49093 · St. Joseph County
Birthing friendly

Bronson Methodist Hospital

Acute Care Hospitals · Kalamazoo, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230017
Location601 John StreetKalamazoo, MI 49007 · Kalamazoo County
Emergency services Birthing friendly

Bronson Battle Creek Hospital

Acute Care Hospitals · Battle Creek, MI
4/5 CMS rating
OwnershipProprietary
CMS Certification Number230075
Location300 North AvenueBattle Creek, MI 49017 · Calhoun County
Emergency services Birthing friendly

Bronson South Haven Hospital

Acute Care Hospitals · South Haven, MI
OwnershipGovernment - Hospital District or Authority
CMS Certification Number230085
Location955 S Bailey AveSouth Haven, MI 49090 · Van Buren County
Emergency services

Bronson Lakeview Hospital

Critical Access Hospitals · Paw Paw, MI
OwnershipVoluntary non-profit - Private
CMS Certification Number231332
Location408 Hazen StreetPaw Paw, MI 49079 · Van Buren County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49009 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
16 suppliers50 claims94 services$6.31 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
9 suppliers18 claims20 services$1.15 avg. paid by Medicare
Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier11 claims330 services$5.42 avg. paid by Medicare
Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims3,780 services$0.39 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers26 claims26 services$79.64 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers13 claims13 services$31.17 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

MICHAEL KU
Family Medicine
8088 VINEYARD DRIVE
KALAMAZOO, MI 49009
Kalamazoo County (269) 286-7090
RONALD DAVID DOAN III PA
Physician Assistant
8088 VINEYARD DRIVE
KALAMAZOO, MI 49009
Kalamazoo County (269) 286-7090
HEATHER MARGARET SIMON FNP-C
Nurse Practitioner (Family)
8088 VINEYARD DRIVE
KALAMAZOO, MI 49009
Kalamazoo County (269) 286-7090

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 Gatz's NPI number?

The NPI number for Timothy Gatz is 1689780231. It was assigned to this individual provider in the NPPES registry on August 23, 2006.

Where is Timothy Gatz located?

Timothy Gatz practices at 8088 Vineyard Drive, Kalamazoo, MI 49009. The listed phone number is (269) 286-7090.

What is Timothy Gatz's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Timothy Gatz enrolled in Medicare?

Yes. Timothy Gatz 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 Gatz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Gatz reassigns Medicare benefits to 2 organizations: Bronson Methodist Hospital (Kalamazoo, MI) and Bronson Battle Creek Hospital (Battle Creek, MI). 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 Gatz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Timothy Gatz accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health and UnitedHealthcare list Timothy Gatz 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 Gatz affiliated with any hospitals?

According to CMS data, Timothy Gatz is affiliated with Three Rivers Health, Bronson Methodist Hospital, Bronson Battle Creek Hospital, Bronson South Haven Hospital and Bronson Lakeview Hospital.

When was this NPI record last updated?

The NPPES record for Timothy Gatz was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.