KATHERINE DENISE OYSTER MD
NPI 1902245681
Family Medicine in Grand Rapids, MI

Active since June 17, 2013PECOS EnrolledAccepts Medicare Assignment
300 LAFAYETTE AVE SE STE 4000, GRAND RAPIDS, MI 49503(616) 685-6922 Get Directions Write a Review

NPPES record last updated: March 11, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Katherine Denise Oyster Md NPPES

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

KATHERINE DENISE OYSTER MD (NPI 1902245681) is an individual family medicine provider in Grand Rapids, Michigan, licensed in Michigan (4301102931) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Allina United Hospital, and is a graduate of Medical College Of Wisconsin (2013).

NPPES Registry Identity

NPI1902245681
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameKATHERINE DENISE OYSTERCredential: MD
Location Address300 LAFAYETTE AVE SE STE 4000Grand Rapids, MI 49503-4692
Mailing Address300 Lafayette Ave Se Ste 4000Grand Rapids, MI 49503-4692 · (616) 685-6922
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 2013
Enumeration DateJune 17, 2013
Last NPPES UpdateMarch 11, 2021
NPPES CertifiedMarch 11, 2021
NPI 1902245681 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 · 4301102931
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.

300 LAFAYETTE AVE SE STE 4000, Grand Rapids, MI 49503

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

Katherine Denise Oyster 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 ID9234373044
PECOS Enrollment IDI20160805002198
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 8

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.

Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
60 services43 patients
Established patient office or other outpatient visit, 30-39 minutes 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.
32 services26 patients
Blood test, basic group of blood chemicals (calcium, total) 80048
A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.
20 services17 patients
Blood test, lipids (cholesterol and triglycerides) 80061
A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.
18 services17 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
14 services12 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
13 services11 patients

Hospital Affiliations CMS Care Compare

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

Allina United Hospital

Acute Care Hospitals · Saint Paul, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240038
Location333 North Smith AvenueSaint Paul, MN 55102 · Ramsey County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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

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

Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier12 claims12 services$3.41 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 20

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

Family Medicine
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Family Medicine
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Family Medicine
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Family Medicine
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Social Worker
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Pharmacist
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Family Medicine
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503
Family Medicine
300 LAFAYETTE AVE SE STE 4000
GRAND RAPIDS, MI 49503

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 Katherine Oyster's NPI number?

The NPI number for Katherine Oyster is 1902245681. It was assigned to this individual provider in the NPPES registry on June 17, 2013.

Where is Katherine Oyster located?

Katherine Oyster practices at 300 Lafayette Ave SE Ste 4000, Grand Rapids, MI 49503. The listed phone number is (616) 685-6922.

What is Katherine Oyster's specialty?

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

Is Katherine Oyster enrolled in Medicare?

Yes. Katherine Oyster 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 Katherine Oyster accept?

Health plans from HealthPartners and Medica list Katherine Oyster 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 Katherine Oyster affiliated with any hospitals?

According to CMS data, Katherine Oyster is affiliated with Allina United Hospital.

When was this NPI record last updated?

The NPPES record for Katherine Oyster was last updated on March 11, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.